pilot catalog
TRANSCRIPT
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2 004 Tyco Flow Control. A ll rights reserved. ANGMC-0243-US-0403Total Flow Control Solutions™
Flow Control
ANDERSON
GREENWOOD
In the highly specialized field of pressurerelief devices, no manufacturer can match
the diversified products and experience
of Anderson Greenwood. With more
designs than any other worldwide
manufacturer, Anderson Greenwood’s
product technology solves applications
from the most severe problem to very
basic service conditions. These designs
include a high temperature metal seated
pilot valve, premium performance spring
operated valves, API 526 flanged
conventional and balanced bellows valves
and an extensive iron and bronze product
range. In addition to our well-knownproduct quality, ISO 9001 certifications
have been awarded to both our Stafford,
Texas, and Market Harborough, England,
manufacturing plants, ensuring the ability
to deliver products that meet customers’
precise requirements well into the 21st
century and beyond.
Why Specify PilotOperated Pressure ReliefValves?
• Reduced Installation Costs
• Reduced Product Loss
• Increased Production Levels
• Reduced Maintenance Costs
• Reduced Environmental Pollution
• Increased Operating Income
Pilot Operated Pressure Relief Valves
Anderson Greenwood is registered trademark TycoInternational Services AG or its affiliates in theUnited States and/or other countries. All other
brand names, product names, or trademarksbelong to their respective holders.
Contents
Features and Benefits 2 – 3
How to Select a Valve Type 4
Application Guide 4
SelectionPilot Types
Series 200 5 – 7Series 400 8 – 10
Series 500 11 – 12
Series 700 13 – 16Series 800 17 – 19
Series 400 Iso-Dome 20 – 21
Sizing
How to Size a Valve 22
Sizing Formulas 23
Sizing Factors 24 – 29
Valve Orifice Areas 30
Ordering
How to Order a Valve 3
Materials of Construction
Standard Main Valve 32 – 3
Series 200 Pilot 34 – 3
Series 400 Pilot 36 – 3
Series 500 Pilot 38 – 3
Series 700 Pilot 40 – 4
Series 800 Pilot 42 – 4
Inlet Flange Ratings 4
Recommended
Soft Goods Limits 44 – 5
Model Numbering 5
Accessories and Options 53 – 5
Dimensions and Weights 58 – 6
Outlet Flange Ratings 6
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
Ordering (to order the valve)
Construct a ModelNumber
(Page 52)
Review Accessories
and Options
(Pages 53 - 55)
Review
Dimensions and Weights
(Pages 58 - 62)
How to Use This Catalog
Anderson Greenwood is the established
and consistent leader in pilot operated,
pressure relief valve technology. More
than three decades of pilot valve
experience enables us to produce, supply,and support pressure relief valves that:
• assure leak-free system operation veryclose to PRV set pressure
• relieve consistently within codetolerances
• reseat bubble-tight after a short andstable blowdown
• operate through many relief cycleswithout maintenance
This catalog is divided into three primary
parts, which provide step-by-step
instructions that make it easy for you to
select a valve type, determine the proper
orifice area, and order the valve.
Part 1, Selection, helps you determine
the type of valve that best suits your
application.
Part 2, Sizing, provides the informationyou need to choose the correct valve
orifice area. (Sizing is actually part of
valve selection, but since sizing is such
important factor in selection, a separat
section is provided to help you make th
proper choice.)
Part 3, Ordering, explains how to selec
and order the specific model number, a
you have chosen the appropriate valve
type and size.
Use
Application Guide
(Page 4)
Selection (to narrow your choice)
Use
Sizing Formulas
(Page 23)
Review
Orifice Areas
(Page 30)
Review
Sizing Factors
(Pages 24 - 29)
Sizing (to identify orifice size required)
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0243
2
• Soft Seat Design. Provides repeatablebubble-tight performance before and
after each relief cycle.
• Metal-to-Metal Seat Design. Providespilot valve performance in high
temperature service.
• Bubble-tight Seats Near SetPressure.Allows higher system
operating pressure and, therefore,maximum process output; not as
sensitive to vibrational and pulsating
service; reduces product loss.
• Pop Action Available. No main valvethrottling, which helps prevent freeze-
ups in cryogenic or refrigerant type
services.
• Modulation Action Available.Minimized product loss per relief
situation; reduced environmental
pollution; avoids oversizing
consequences; not as sensitive to inlet
pressure losses as pop action.
• Field Test Connection. Quick simpleverification of set pressure while valve
remains in service.
• Balanced Design. Lift not affected byback pressure; no expensive and
fragile bellows required as with direct
spring valves.
• Externally Adjustable Blowdown.Allows blowdown adjustment with valve
in service; no costly removal of valve or
system shutdown required.
• Patented, Piston Wedge Ring.Prevents resonant chatter; no resultant
severe valve damage, lost product or
hazard to personnel.
• Full Lift at Set Pressure. Nooverpressure required for full lift; allows
D.O.T. installation to be set higher than
Maximum Allowable Operating
Pressure (MAOP) when pop action is
used.
• Replaceable Soft Seats and Seals.All seats and seals are easily and
quickly renewable; no expensive, time-
consuming lapping required.
Features and Benefits
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
Higher Maximum Set Pressures
Anderson Greenwood’s POPRVs are able
to operate at considerably higher set
pressures than is possible with springloaded SRVs. In some cases one POPRV
can replace five spring loaded SRVs
thereby considerably reducing capital
and installation costs.
Lower Height Profile
Because the Anderson Greenwood
POPRV does not use a spring to hold
the main valve seat closed, considerable
height savings are achieved in the valve
design.The same pilot valve is used for
all main valve sizes providing significant
height savings particularly on larger and
higher pressure valves. This enables the
POPRVs to be used in situations where
space is at a premium.
Weight Savings
As valve size and set pressure increases,
a larger spring is needed to keep the
seat of a spring loaded SRV closed —
increasing the weight of the valve. Signifi-
cant weight savings are provided by the
Anderson Greenwood POPRV, which uses
system pressure via the pilot valve
to maintain seat tightness.These weight
savings allow cost reductions on plant
construction and, in particular, on offshore
oil and gas platforms.
Maximum Set Pressure Comparison
Valve Orifice Area Direct Spring Anderson Greenwood
in [mm] in2
[cm2
] Operated, psig [barg] Pilot Operated, psig [ba8 x 10 Full Bore
38.96 [251.37] N/A 1480+ [102.0+][200 x 250 Full Bore]
8T10 26.00 [167.75] 300 [20.7] 1480+ [102.0+]
6R8 16.00 [103.23] 300 [20.7] 1480+ [102.0+]
4P6 6.38 [41.16] 1000 [69.0] 3705+ [255.5+]
3K4 1.83 [11.86] 2220 [153.1] 3705+ [255.5+]
Height Comparison
Valve Rating Direct Spring Anderson Greenwood Height
in [mm] Operated, in [mm] Pilot Operated, in [mm] Saving
8 x 10150# 57 [1448] 30 [762] 47%
[200 x 250]
6 x 8
[150 x 200]300# 43 [1092] 26 [660] 40%
4 x 6300# 37 [940] 23 [584] 38%
[100 x 150]
3 x 4
[80 x 100]600# 34 [864] 20 [508] 41%
2 x 3600# 23 [584] 19 [483] 19%
[50 x 80]
Weight Comparison
Valve Rating Direct Spring Anderson Greenwood Weight
in [mm] Operated, lb [kg] Pilot Operated, lb [kg] Saving
8 x 10150# 750 [340.9] 421 [191.4] 44%
[200 x 250]
6 x 8
[150 x 200]300# 480 [218.2] 264 [120.0] 45%
4 x 6300# 230 [104.5] 160 [72.7] 30%
[100 x 150]
3 x 4[80 x 100]
600# 160 [72.7] 92 [41.8] 42%
2 x 3600# 70 [31.8] 53 [24.1] 24%
[50 x 80]
Features and Benefits
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0243
4
Application Guide
Options
Set Pressure Valve Series
psig [barg] 200 400 500 700 800
15 – 720 [1.03 – 49.64]1 X
15 – 1480 [1.03 – 101.97] X
25 – 6170 [1.72 – 413.70]3 X
50 – 1200 [3.45 – 82.74] X
1481 – 6170 [102.12 – 425.42] X
Valve Action
Pop X X
Modulating X X X
Service
Gas/Vapor X X X X X
Liquid2 X X X
Steam X X
Process Temperature, °F [°C]
Ambient to +1000 [Ambient to +538] X
-65 to +600 [-54 to +315] X X
-423 to +600 [-252 to +315] X
-65 to +515 [-54 to +268] X
Notes
1. 11 ⁄ 2-inch x 3-inch [40 x 80 mm] Type 546
has 25 psig [1.72 barg] minimum set.
2. Use Type 249, 259, 269 for cryogenic liquid
(set pressure range for this valve type is 25
to 1440 psig [1.72 to 99.3 barg]).
3. Higher pressures available on special order.
4. Not all valves are available for service atthe extreme limits for both temperature
and pressure simultaneously.
How to Select a Valve Type
To determine which pilot operated safety
relief valve type is most appropriate for
your application, please use the following
guidelines:
1. In the Application Guide (below), note
which valve types seem most
appropriate for your application.
2. Read the associated descriptive and
operating information in the catalog
dedicated to that type of valve (Series
200, 400, 500, 700 or 800).
3. Using the formulas in Part 2, Sizing
(page 25), determine the required
orifice area for your service conditions
and select the orifice area that suits
your application.
4. If you have been able to determine a
pilot operated valve type and orifice
area that suits your application, refer
to Part 3, Ordering (page 33), to select
and order a specific model number. If
you were not able to find a valve type
to meet your application needs, please
contact your Anderson Greenwood
representative, or our factory direct,
for assistance.
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
Series 200 Pop Action Safety Valve
Anderson Greenwood’s Series 200 popaction, safety valve, with non-flowing pilot,
provides system overpressure protection
you can count on. Since its 1966
introduction, it has been continuously
refined and remains the standard against
which all other pilot operated valves are
compared.This valve is well suited for
gas, vapor, and many mixed phase
services, including dirty and/or wet
applications.The Series 200 is available
with effective orifice areas of 0.110
through 38.96 inch2 [0.710 through 251.3
cm2], valve inlet sizes 1-inch through 8-
inch [25 mm through 200 mm], setpressures from 25 to over 6000 psig [1.72
to over 413.7 barg], and continuous
service temperatures from -423°F to
+600°F [-253°C to +315°C].
Features and Benefits
• Balanced Design. Proper valveoperation and lift are unaffected by
back pressure. Costly and fragile metal
bellows are not required.
• External, independent blowdownadjustment. Provides easy, accurate
and repeatable settings. Reducescostly removal of valve or system
downtime.
• ASME Section VIII Code Stamp.Certified National Board capacities for
gas service assures user of
independent third party flow rate
verification.
• Reduced Maintenance Cost. Softseats greatly extend service life,
making costly and time consuming
metal seat lapping unnecessary.
• Suited for Dirty or Wet Service.Non-flowing pilot minimizes entranc
dirt and formation of hydrates in the
pilot. Due to low velocities within the
pilot and supply tubing, most particl
will drop out upstream of pilot inlet
screen. Optional cartridge type pilot
filter is available for extremely dirty
services.
• Increased System Output. Becausof total valve tightness to at least 95
percent of set pressure, the system
can be operated nearer set pressur
without valve leakage, resulting ingreater system throughput.
• Unique Field Test Capability. Thisoption allows accurate set pressure
verification with valve in service. No
system isolation block valve or ruptu
disc required.
• Reduced Product Loss and PollutiSoft seats for premium tightness be
and after relief cycles.
• Rugged Bracket Pilot Mounting.Extremely rigid mounting protects
against vibration and careless
handling. Shake table proven.
• Full Lift at Set Pressure. AllowsD.O.T. installation to be set higher
than Maximum Allowable Operating
Pressure (MAOP), resulting in
increased system throughput.
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0243
6
Series 200 Operations
Normal Closed Position
Relieving Position
Main Valve
Piston Seal
Dome100% of set
Dome
PilotDischarge
Pilot
Set PressureAdjustment
Relief Seat
BlowdownSeat
100% of set
System
BlowdownAdjustment
Main Valve SeatPiston
Normal Closed Position
100% of set Dome
100% of set
System
0%
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Operation
In the normal closed position, full system
pressure is sensed at the pressure pick-
up in the main valve inlet.This pressureis transmitted through the pilot and into
the dome (volume above the main valve
piston). Because the piston seal area is
greater than the main seat sealing area,
the net force on the piston is downward,
keeping the valve tightly closed.The
higher the system pressure, the greater
the downward force on the piston —
exactly the opposite of direct spring
operated valves.
When the pilot senses set pressure, its
relief seat snaps open and the blowdown
seat snaps closed simultaneously, venting
the dome pressure through the pilot relief
seat to atmosphere.This allows the main
valve to open fully at set pressure. The
blowdown seat is held tightly closed during
the relief cycle until the desired system
blowdown is achieved, at which time the
blowdown seat snaps open and the relief
seat snaps closed simultaneously. This
fully repressures the dome to system
pressure and closes the main valve.
The valve reseat pressure is dependent
upon the lift of the spindle off the relief
seat. Higher spindle lift results in more
spring compression and a higher spindleclosing force stored in the pilot spring.The
higher the lift, the shorter the blowdown
(higher valve reseat pressure).The
spindle lift and thus blowdown are
externally adjustable by raising or lowering
the blowdown assembly of the pilot, thus
changing the spindle travel.
Specifications
• Non-flowing pilot.
• Replaceable main valve seat locateon piston to take wear.
• Pilot mounted on severe duty brack
• Vertical pilot mounting.
• Externally adjustable blowdown.
• Options, such as auxiliary f ilter, spiksnubber, and unloader mounted on
main valve with severe duty bracket
• Field replaceable main valve nozzle
• Lettered orifice valves meet APIstandard 526 dimension requiremen
Series 200 Specifications
Pressure
Pressure
D o w n F o r c e o n M a i n V a l v e P i s t o n
0 Set
M a i n V a l v e P i s t o n L i f t
0 Set
C l o s i n g
O p e n i n g
100% Lift
3% MinBlowdo
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0243
8
The Series 400 modulating valve, with
non-flowing pilot, incorporates anadvanced design in pilot operated valves.Under process conditions, both pilot andmain valve can be tight as high as 98 per-cent of set pressure.The main valve liftsproportionally, according to demand,restricting product loss to only that whichmust be relieved to prevent process pres-sure from exceeding the code allowance.
The Series 400 valve is well suited for gas
and/or liquid services, including dirty
and/or wet services.The modulating
action is strongly preferred for liquid relief
because it eliminates the destructive
effects of ‘liquid hammer.’The Series 400valve is available with the following:
effective orifice areas of 0.110 through
38.96 inch2 [0.710 through 251.3 cm2]
valve inlet sizes 1-inch through 8-inch
[25 mm through 200 mm], set pressure
between 15 and 1480 psig [1.03 and
102.0 barg], and continuous service
temperatures from -65°F to +600°F
[-54°C to +315°C].
Features and Benefits
• Unique Field Test Capability. Allowsaccurate set pressure verification with
valve in service. No system isolation
valve or rupture disc required.All field
test connections are provided with an
indicator for accurate and easy set
pressure testing.
• Reduced Product Loss andPollution. Soft seats for premium
tightness before and after relief cycles.
Modulating action relieves minimum
product to prevent overpressure.
• ASME Section VIII Code Stamp.Certified National Board capacitiesfor both gas and liquid service assures
user of independent third party flow
rate verification.
• Non-flowing Pilot. Minimizes entranceof dirt and formation of hydrates in
pilot. Due to low velocities within the
pilot and supply tubing, most particles
will drop out upstream of pilot inlet
screen. Optional cartridge type pilot
filter is available for extremely dirty
services.
• Rugged Bracket Pilot Mounting.Extremely rigid mounting protecting
against vibration and careless
handling. Shake table proven.
• Reduced Noise. Modulating actionminimizes flow and resultant noise
during normal system upset, reducing
noise abatement costs.
• Increased System Output. Becauseof valve tightness to 98 percent of set
pressure, the system can be operated
nearer set pressure without valve
leakage, resulting in greater system
throughput.
• Reduced Maintenance Costs. Softseats greatly extend service life,
making costly and time-consuming
metal seat lapping unnecessary.
• Ease of Adjustment. Singleadjustment for set pressure allows
accurate and dependable setting.
• Balanced Design. Proper valveoperation and lift are unaffected by
back pressure.Costly and fragile metal
bellows are not required.
* Patent Protected
Series 400* Modulating Safety Relief Valve
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
Series 400 Specifications
Sense Diaphragm
Set PressureAdjustment
Tubed to MainValve Outlet
Feedback PistonPiston
Outle
Seat
InleSe
Dome
Main Valve
Operation
With no system pressure, the pilot inlet
seat is open and the outlet seat is closed.
As pressure is admitted to the main valveinlet, it enters the pilot through a filter
screen. Pressure is then transmitted
through passages in the feedback piston,
past the inlet seat, into the main valve
dome, which causes the main valve piston
to remain closed.
As system pressure increases and
approaches valve set pressure, it acts
upward on the sense diaphragm, with the
feedback piston also moving upward to
close the inlet seat.This seals in the main
valve dome pressure, since the outlet seat
is also closed. A small, further increase in
system pressure opens the outlet seat,
partially venting the main valve dome
pressure.This reduced dome pressure
acts on the unbalanced feedback piston to
reduce feedback piston lift, tending to ‘lock
in’ the dome pressure.Thus, at any stable
inlet pressure, there will be no pilot flow
(i.e., zero leakage).
As inlet pressure rises above set
pressure, dome pressure reduction will
provide modulating action of the main
valve piston proportional to the process
upset. The spool/feedback piston
combination will move, responding tosystem pressure, to alternately allow
pressure in the main valve dome to
increase or decrease.This moves the
main valve piston to the exact lift that will
keep system pressure constant at the
required flow. Full main valve lift, and
therefore full capacity, is achieved with
relatively little overpressure. As system
pressure decreases below set pressure,
the feedback piston moves downward and
opens the inlet seat to admit system
pressure to the dome.This closes the
main valve.The pilot exhaust is always
piped to the main valve outlet.
Below Set Pressure With Main Valve Closed
Pressure
M a i n V a l v e P i s t o n L i f t
Set
C l o
s i n
g
100% Lift
O p e n
i n g
Pressure
D o w n F o r c e o n M a i n V a l v e P i s t o n
0Set
95% Set Pres.,Minimum
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0243
10
Series 400 Specifications
Tubed toMain ValveOutlet
Above Set Pressure With Main Valve Fully Open
Specifications
• Non-flowing pilot.
• Single point set pressure adjustment.
• Replaceable main valve seat, locatedon piston to take wear.
• Feedback mechanism in pilot,independent of primary pressure
sensing mechanism, to ensure smooth
modulation of main valve.
• Indicator button for field test capability.
• Field replaceable main valve nozzle.
• Lettered orifices meet API standard526 dimension requirements.
Tubed toMain ValveOutlet
At or Slightly Above Set Pressure Main Valve Partially Open and Modulating
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
The Anderson Greenwood Series 500 is a
unique soft seated safety relief valve
designed to handle higher temperatures. It
was created with a specific designobjective: to decrease the leakage
associated with metal-seated safety relief
valves under extreme operating
temperature conditions.
The result is a modulating, soft-seated,
pilot operated valve offering premium
tightness with the ability to handle
temperatures from -65°F to 515°F [-54°C
to 268°C] and a set pressure range of 15
to 720 psig [1.03 to 49.6 barg].
The soft seat in the Series 500 main valve
is more resistant to particulate damage
than a metal seat, has a longer service
life, and can be quickly replaced while the
valve body remains installed in the line.
Its unique design enables the main valve
to be tight at pressures up to set point.
After relieving and reseating, it stays
bubble-tight, cycle after cycle. Applications
for the Series 500 include hot water,
steam (ASME section VIII Unfired
Pressure Vessels), hot hydrocarbon
vapors or liquids, and corrosive services.
Features and Benefits
• Reduced Product Loss andPollution. Soft seats for premium
tightness before and after relief cycles.
• All Plastic Soft Goods. There are noelastomer seats or seals providing
additional chemical compatibility with
the lading fluid.
• Increased System Output. Becauseof total valve tightness to at least 95
percent of set pressure, the system
can be operated nearer to set pressurewithout valve leakage.The result is
greater system production capability.
• Reduced Maintenance Costs.Resilient seats greatly extend service
life. Costly and time consuming metal
seat lapping is unnecessary.
• Balanced Design. Proper valveoperation and lift are unaffected by
back pressure. Costly and fragile metal
bellows are not required.
• ASME Section VIII Stamp. Certified
National Board capacities for steam,gases, and liquids assures user of
independent third party flow rate
verification.
• Unique Field Test Capability. Allowaccurate set pressure verification w
valve in service. No system isolation
valve or rupture disc is required.Sin
indicator button is available for
accurate and easy verification of se
pressure.
• Reduced Noise. Modulating actionminimizes flow and resultant noise
during normal system upset reducin
noise abatement costs.
•Ease of Adjustment. Adjustment fo
set pressure allows accurate and
dependable setting.
Series 500 Modulating Safety Relief Valve
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Operation
In normal operation, the system pressure
acts on the area contained by the main
valve seat at the bottom of the free-
floating differential area piston and on the
top of the piston.Since the top of the
piston
is larger than the bottom (seat area), there
is a large downward net force holding the
piston closed. Under static conditions, the
seating force increases as the system
pressure increases and approaches set
point.
When the set pressure is reached, the
pilot opens and partially depressurizes the
dome. This reduces the force on the top of
the piston to the point where the upward
force on the seat area can overcome the
reduced downward loading. This causes
the piston to lift, resulting in modulated
flow through the main valve.
When the relief demand has beensatisfied, the pilot closes, full system
pressure is diverted to the dome, and the
piston moves downward, closing the main
valve.
A patented, pressure responsive piston
drag system in the larger Series 500
valves eliminates resonant chatter and
the severe valve and/or piping damage
it can cause.The wedge ring creates a
pressure-actuated sliding friction force
between the piston and liner, preventing
resonant chatter.
Specifications
• Durable but replaceable Teflon ® seat inmain valve, located on piston to take
the wear. A totally captive seat design
eliminates seat extrusion at elevated
temperatures.
• Teflon ® /PEEK seals throughout mainvalve and pilot for optimum chemical
resistance, such as needed for various
chemicals in boiler feed water.
• Dual diaphragm pilot for minimum firstleak-to-relief pressure.
• Single point set pressure adjustment.
• Indicator button for field test capability.
• Field replaceable main valve nozzle.
• Lettered orifice valves meet APIstandard 526 dimension requirements.
Note
1. Teflon ® is a registered trademark of the E.I.
duPont de Nemours Company.
Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0243
12
D o w n F o r c e o n M a i n V a l v e P i s t o n
Set
Pressure
0
Pressure
M a i n V a l v e P i s t o n L i f t
Set
C l o
s i n
g
100% Lift
O p e n
i n g
Series 500 Specifications
DomePressure
Dome
Field TestConnection(optional)
Pilot DischargePiped to MainValve Outlet
Pilot
Liner
Piston Seal
Wedge Ring
Piston
Piston Seal
Seat
SensePickup
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
The Series 7001 pilot operated safety
valve is unique as an all metal seated
pilot and main valve. This extends the
use of pilot technology to temperatures
up to 1000°F [538°C]. The valve is suitable
for steam and/or gas service.The Series
700 is available with effective areas of
0.503 through 26.00 in2 [3.245 through
167.7 cm2].
Features and Benefits
• All Metal-to-Metal Seating Surfaces.
Trim specifically designed for high
temperature service, plus enhancedchemical compatibility.
• Patented Flexible Disc. Reduces
impact wear while increasing seat
tightness.
• Dampened Trim. Dampening
chambers control the opening and
closing response, increasing valve
cycle life.
• Non-Flowing Pilot. Reduces seat
wear and minimizes entrance of dirt
and particulates in the pilot.
• Adjustable Blowdown. Blowdown
can be adjusted between 3% and 15%
by turning the blowdown adjustment
sleeve. Upper and lower blowdown
rings and pins are not required, saving
time, parts and costs.
• ASME Section VIII Code Stamp.
Certified National Board capacities
steam and gas service assures use
independent third party flow rate
verification.
• Unique Field Test Capability, this
option allows accurate set pressure
verification with valve in service. No
system isolation block valve or rupt
disc required.
700 Manifolded Dual Pilots2
(Optional)• For maximum operating conditions
is recommended to use dual pilots
built-in switching mechanism.
• The safety lock allows the operator
isolate only one pilot while the activ
pilot protects the system.
• In-service testing and replacement
pilot under operating condition with
system protection.
Notes
1. U.S. Patent Number 5,064,169
2. U.S. Patent Number 5,590,684
Series 7001 Pop Action Safety Valve
Dual Pilots
Manifold
Changeover valves
Safety lock
Field testconnection
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Series 700 Specifications
Class 300 Design Scope
Pressure and Temperature Rating1000 [538]
800[427]
600[316]
400[204]
200[93]
00 200
[13.8]400
[27.6]600
[41.4]800
[55.2]
MaterialCode
S2WCB
S1WCB
° F [ ° C ]
psig [barg]
S3WC6
Class 150 Design Scope
Pressure and Temperature Rating1000
[538]
800[427]
600[316]
400[204]
200[93]
0
0 100[6.9]
200[13.8]
300[20.7]
400[27.6]
MaterialCode
S2WCB
S1WCB
° F [ ° C ]
psig [barg]
Specifications
• Non-flowing pilot.
• Vertical pilot mounting.
• Externally adjustable blowdown.
• Field replaceable nozzle.
• ANSI pressure class 150, 300 and 600.
• All metal seats/seals.
Pressure and Temperature Rating1000 [538]
800[427]
600[316]
400[204]
200[93]
0
0 200[13.8]
400[27.6]
600[41.4]
800[55.2]
MaterialCode
S2WCB
S1WCB
° F [ ° C ]
psig [barg]
S3WC6
1000[69.0]
1200[82.8]
Class 600 Design Scope
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
Series 700 Operation
Operation
Steam Service
In the closed position, when operating
below set point, the valve internal pressureis equal to the system pressure and the
piston is pressure balanced.
System pressure is directed to three key
areas of the valve:
1. The Dome, via the dome charging
orifice;
2. The Pilot, via the integral pressure
sensing connection and the external pilot
inlet sensing line; and
3. The Unloader, via the sensing line
connections from the pilot dome and theintegral sensing connection from the
dome through the cap.
The seating force is produced by system
pressure acting on the internal exposed
disc surface area. As system pressure
increases, the seating force increases
providing maximum seat tightness up to set
point when the valve opens.
When system pressure reaches set point
and overcomes the pilot spring force, the
pilot pops open and sets into motion four
key reactions:
1. The normally open reseat piston moves
into full lift and closes against the
blowdown seat preventing further system
pressure from flowing through the pilot.
This is the non-flowing pilot feature.
2. Unloader dome pressure is vented
through the pilot vent to atmosphere.With
the internal pilot pressure relieved, the
pilot spring is now sensing system
overpressure in the pilot inlet sensing line
via the spindle-disc-spacer rod-reseat
piston.
3. The venting of unloader dome pressurecreates a pressure imbalance which
opens the unloader piston. Main dome
pressure is now being vented into the
valve outlet, and the pressure drop
backseats the drain plunger, preventing
system pressure from charging the dome.
System PressureUnloader
Piston
UnloaderDome
SpindPilot D
Relief Seat(Open)
Spacer
Blowdown Seat (Closed)
Reseat Piston
System Pressure
Nozzle
Disc Piston Dome
Unloader
Pilot
PilotVent
Dome Charging Orifice
Pressure Sensing (Integral)
Main Valve
Drain Plunger
Relief Seat(Closed)
Blowdown Seat(Open)
Relieving Position
Normal Closed Position
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16
4. The depressurisation of the piston dome
pressure produces a pressure imbalance
which moves the piston/disc assembly
off the nozzle seat.As the media begins
to exit through the valve outlet, thedownstream disc surface area is
subjected to system overpressure and
the piston/disc assembly goes into full lift
instantaneously.
When system overpressure has been fully
relieved, the pilot spring closes the pilot
disc onto the relief seat. The valve now
goes into the blowdown phase and sets
into motion the above mentioned four key
reactions in reverse:
1. The pilot disc-spacer rod pushes the
reseat piston off the blowdown seat and
the internals of the pilot spring-spindle-
disc assembly are once again sensing
system pressure.
2. With the pilot closed and the pilot vent
isolated, system pressure is now
directed to the unloader dome.
3. Recharging the unloader dome causes
the unloader piston to close and stops
the depressurisation of the piston dome
pressure.
4. System pressure is now charging the
piston dome via the dome charging
orifice. The pressure imbalance is now
closing the piston/disc assembly.
With the main disc closed and outlet
pressure on the disc eliminated, the
system pressure acting on the internal
exposed area of the disc once again re-
establishes maximum seat tightness.
Air, Gas or Vapor ServiceFor air, gas and vapor service, the
assembly of the main valve and pilot is
modified for valves 4” x 6” and smaller as
follows:
1. The unloader is deleted and the pilot
dome connected directly to cap.
2. The unloader discharge port in the
valve outlet is plugged.
3. The dome charging orifice in the piston
is deleted.
4. A snubber is installed at the pilot inlet to
dampen system pulsations.
The operation of the main valve and pilot
in air, gas and vapor service is the same
as the steam valve.
The pilot is able to vent and depressurizethe main dome with sufficient speed to
provide proper opening and closing
performance without the use of an
unloader.
For mixed phase flow, consult the factory
to determine if unloader is required.
Series 700 Operation
System Pressure
Nozzle
Disc
Piston
Dome
Pilot
Pressure Sensing (Integral) Main Valve
Drain Plunger
Relief Seat(Closed)
Blowdown Seat(Open)
PilotVent
Snubber
Normal Closed Position
For 6” x 8” and 8” x 10” valves the unloader is
utilized to optimize the performance.
Air/Gas/Vapor
2” x 3” through 4” x 6”
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
The Series 800 modulating valve utilizes
the most advanced design in pilot operated
valves.The non-flowing, modulating pilot
can be set at pressures up to 6170 psig
[425.52 barg].Under these processconditions, the pilot and main valve can be
tight up to 98 percent of set pressure.
Since the pilot is modulating, the main
valve lifts proportionally according to
demand, restricting product loss to only
that which needs to be relieved to prevent
the process pressure from exceeding the
code allowance.The pilot provides stable
lift even on hard liquid systems due to its
unique trim. The 800 Series can also be
used in gases or mixed phase lading
fluids, including dirty and/or wet services.
The Series 800 valve is available with
the following: effective orifice areas of
0.110 through 9.489 in2 [0.710 through
61.21 cm2], valve inlet sizes 1-inch
through 4-inch [25 mm through 100 mm],
set pressures between 1481 and
6170 psig [102.13 and 425.52 barg],
and continuous temperatures from
-6°F to +600°F [-54°C to + 315°C].
Features and Benefits
• High Set Pressure Capability.Provides modulating, non-flowing pilot
valve performance to 6170 psig
[425.42 barg].
• Unique Field Test Capability. Allowsaccurate set pressure verification with
valve in service with minimal amount
of test gas.All field test connections
are provided with an indicator for
accurate and easy set pressure testing.
• Reduced Product Loss andPollution. Soft seats for premiumtightness before and after relief cycles.
Modulating action relieves minimum
product to prevent overpressure.
• ASME Section VIII Code Stamp.Certified National Board capacities for
both gas and liquid service assures
user of third party flow rate verification.
• Non-flowing pilot. Minimizes entranceof dirt and formation of hydrates in
pilot. Due to low velocities within the
pilot and supply tubing, most particles
will drop out upstream of pilot inletscreen. Optional cartridge type pilot
filter is available for extremely dirty
services.
• Rugged Bracket Pilot Mounting.Extremely rigid mounting protects
against vibration and careless
handling.
• Reduced Noise. Modulating actionminimizes flow and resultant noise
during normal system upset, reduci
noise abatement costs.
• Increased System Output. Becausof valve tightness to 98 percent of s
pressure, the system can be operat
nearer set pressure without valve
leakage, resulting in greater system
throughput.
• Ease of Adjustment. Singleadjustment for set pressure allows
accurate and dependable setting.
• Reduced Maintenance Costs. Sofseats greatly extend service life,
making costly and time-consuming
metal seat lapping unnecessary.
• Balanced Design. Proper valveoperation and lift are unaffected by
back pressure. Costly and fragile met
bellows are not required.
Series 800 Modulating Safety Relief Valve
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Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0243
18
Operation
With no system pressure, the pilot inlet
seat is open and the outlet seat is closed.
As pressure is admitted to the main valveinlet, it enters the pilot through a filter
screen. Pressure is then transmitted
through passages in the feedback piston,
past the inlet seat, into the main valve
dome, which causes the main valve piston
to remain closed.
As system pressure increases and
approaches valve set pressure, it acts
upward on the sense O-ring seal, with
the feedback piston moving upward to
close the inlet seat.This seals in the main
valve dome pressure, since the outlet seat
is also closed. A small, further increase in
system pressure opens the outlet seat,
partially venting the main valve dome
pressure.This reduced dome pressure
acts on the unbalanced feedback piston to
reduce feedback piston lift, tending to ‘lock
in’ the dome pressure.Thus, at any stable
inlet pressure, there will be no pilot flow
(i.e., zero leakage).
As inlet pressure rises above set
pressure, dome pressure reduction will
provide modulating action of the main
valve piston proportional to the process
upset. The spool/feedback piston
combination will move, responding tosystem pressure, to alternately allow
pressure in the main valve dome to
increase or decrease.This moves the
main valve piston to the exact lift that will
keep system pressure constant at the
required flow. Full main valve lift, and
therefore full capacity, is achieved with
relatively little overpressure. As system
pressure decreases below set pressure,
the feedback piston moves downward and
opens the inlet seat to admit system
pressure to the dome.This closes the
main valve.The pilot exhaust is always
piped to the main valve outlet.
Series 800 Operation
Main Valve
Dome
Tubed toMain ValveOutlet
Sense Seal
Pilot InletSeat
Pilot OutletSeat
Below Set Pressure With Main Valve Closed
Feedback
Piston
Tubed toMain ValveOutlet
At or Slightly Above Set Pressure Main Valve Partially Open and Modulating
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
Series 800 Specifications
Tubed toMain ValveOutlet
Above Set Pressure With Main Valve Fully Open
Pressure
D o w n F o r c e o n M a i n V a
l v e P i s t o n
0Set
95% Set Pres.,Minimum
Pressure
M a i n V a l v e P i s t o
n L i f t
C l o
s i n
g
100% Lift
O p e n i n
g
Set
Specifications
• Non-flowing pilot.• Single-point set pressure adjustment.
• Replaceable main valve seat, located on piston to take wear.
• Feedback mechanism in pilot, independent of primary pressure sensing mechanismto ensure smooth modulation of main valve.
• Indicator button for field test capability.
• Field replaceable main valve nozzle.
• Lettered orifice valves meet API standard 526 dimension requirements.
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0243
20
The Iso-Dome accessory for the 400 pilot
provides protection of the critical pilot
internals from the process media.The pilot is
actuated by the process fluid and is ASME
Section VIII Code stamped for gas and liquid
service. The Iso-Dome pilots are available
with the following: effective orifices areas of
0.110 through 38.96 inch2 [0.710 through
251.3 cm2 ], valve inlet sizes 1-inch through
8-inch [25 mm through 200 mm], set
pressure between 15 and 6170 psig [1.03
and 413.7 barg], and continuous
service temperature from -65°F to +500°F
[-54°C to +260°C].
Features and Benefits
• Critical Pilot Internals and MainValve Dome Protected from Process
Media. Expands the application of pilot
operated valve technology.
• Valve is Fail-safe. Meets ASME coderequirements.
• Allows System Operating Pressureto be Near Set Pressure. SRV
tightness is maintained, resulting in
greater system throughput.
• All Adjustments are Factory Sealed.Just add the clean gas supply for simple
and inexpensive field installation.
• Modulating Action. Minimizes fugitiveemissions, product release, product loss,
and noise.
• Valve Operation Insensitive to Back Pressure. Costly and fragile metal
bellows not required.
• Unique Field Test Capability. Setpressure may be verified while valve
remains in service protecting the system.
No system isolation valve or rupture discrequired.
* Patent Protected
Iso-Dome* Series 400 Valve
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Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
Clean Gas Supply
Process Media
Dome
Main Valve Pilot
Piston
PilotVent
Set PressureAdjustment
Sense Diaphragm
Pilot Spring
Feedback Piston
InletSeat
OutletSeatRegulator
(Supplied by Anderson Greenwood,Mounted on PRV)
Clean Gas Supply (N2, Air, etc.)(Supplied by User)
Iso-Dome* Series 400 Valve
Operation
Process media enters the main valve and
is ported to the pilot sense diaphragm.
The motive fluid for the pilot and main
valve is typically nitrogen or air (clean gas
supply) and is ported into the seating
areas of the pilot and the main valve
dome. This clean gas supply is regulated
to provide pressure into the pilot and main
valve at slightly below the set pressure of
the POPRV.
In the closed position, the downward force
on the piston in the main valve providedby the clean gas supply exceeds the
upward force on the piston developed by
the process media. At just below set
pressure, it is the static pressure of the
process media that compresses the pilot
spring via the sense diaphragm.As the
process media pressure increases, the
upward movement of the sense
diaphragm and feedback piston closes the
pilot inlet seat. A small, further increase in
process media pressure opens the outlet
seat. The clean gas supply (motive fluid)
now exhausts from the main valve dome
via the pilot vent.This reduced dome
pressure acts on the unbalanced feedback
piston lift, and “locks in” dome pressure.
Thus at any stable inlet process media
pressure there will be no pilot flow.This
conserves the clean gas supply volume to
provide multiple valve cycles if necessary.
As inlet pressure rises above set
pressure, further dome pressure reduction
will modulate the main valve piston
proportional to the process media upset.
The feedback piston will move, responding
to the process media pressure to exhaust
or supply the main valve dome with the
clean motive fluid.This puts the main
valve piston in the correct position to
relieve only that process media needed
satisfy the overpressure.
As the process media pressure decrea
below set pressure, the feedback pisto
moves downward and opens the inlet s
to admit the clean gas supply into the
main valve dome. This closes the main
valve.
The process media porting to the pilot
remains a static pressure at all timesduring this opening and closing operati
The internal seating areas of the pilot a
the main valve dome are never expose
this process media at any time.
Below Set Pressure With Main Valve Closed
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Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0243
22
Valves are selected on the basis of their
ability to meet an expected relieving
condition, flowing a sufficient amount of
fluid to prevent excessive pressure
increase.This means that the size of thevalve orifice must be calculated taking the
required flow, performance characteristics,
lading fluid properties, and other factors
into consideration.
The sizing procedure presented utilizes
the recommended practice of API 520
Part I. The valve orifice areas and nozzle
discharge coefficients shown are effective
values in that they are not specific to a
particular valve type. The use of these
effective orifice areas and effective
nozzle discharge coefficients will
always allow for the selection of avalve orifice area that will meet or
exceed the required capacity.
The calculation of the actual certified
valve capacity can be performed with the
Anderson Greenwood sizing software
program enclosed in the catalog binder.
To select the minimum required orifice
area that will flow the required capacity of
the system you wish to protect, please
refer to the following information which
appears in this section:
1. Sizing Formulas
2. Correction Factors
3. Valve Orifice Areas
Once you have determined the required
orifice area for your service conditions,
refer to Part 3, Ordering (page 31), to
select a specific valve model number.
How to Size a Valve
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24
Values of M, k, and C For Representative Gases and Vapors
Gas or Vapor M k C
Molecular Specific GasWeight Heat Ratio Constant
Acetylene (C2H2) 26 1.26 343
Air 29 1.40 356
Ammonia (NH3) 17 1.31 348
Argon (Ar) 40 1.67 378
Benzene (C6H6) 78 1.12 329
Butadiene (C4H6) 54 1.12 329
Carbon Dioxide (CO2) 44 1.28 345
Carbon Monoxide (CO) 28 1.40 356
Ethane (C2H
6) 30 1.19 336
Ethylene (C2H4) 28 1.24 341
Freon 22 86.5 1.18 335
Helium (He) 4 1.66 377
Hexane (C6H14) 86 1.06 322
Hydrogen (H2) 2 1.41 357
Hydrogen Sulphide (H2S) 34 1.32 349
Methane (CH4) 16 1.31 348
Methyl Mercaptan (CH4S) 48.1 1.20 337
n-Butane (C4H10) 58 1.09 326
Natural Gas (SF = 0.60) 17.4 1.27 344
Nitrogen (N2) 28 1.40 356
Oxygen (O2) 32 1.40 356
Pentane (C5H12) 72 1.97 323
Propane (C3H8) 44 1.13 330
Propylene (C3H6) 42 1.15 332
Propylene Oxide (C3H6O) 58.1 1.21 338
Steam 18 1.31 348
Sulphur Dioxide (SO2) 64 1.29 346
VCM (C3H3CI) 62.5 1.18 335
Sizing
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Sizing
k C
1.00 315
1.02 318
1.04 320
1.06 322
1.08 324
1.10 327
1.12 329
1.14 331
1.16 333
1.18 335
1.20 3371.22 339
1.24 341
1.26 343
1.28 345
1.30 347
1.32 349
1.34 351
1.36 352
1.38 354
1.40 3561.42 358
1.44 359
1.46 361
1.48 363
1.50 364
k C
1.52 366
1.54 368
1.56 369
1.58 371
1.60 372
1.62 374
1.64 376
1.66 377
1.68 379
1.70 380
1.72 3821.74 383
1.76 384
1.78 386
1.80 387
1.82 388
1.84 390
1.86 391
1.88 392
1.90 394
1.92 3951.94 397
1.96 398
1.98 399
2.00 400
2.02 401
Gas Constant, C
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26
Back Pressure Correction Factor for Series 200, 400, 500 and 800
Sizing
k = 1.0
k = 1.2
k = 1.6
k = 1.8
k = 2.0
k = 1.4
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
B a c k P r e s s u r e F a c t o r , K b
P2 / P1 = Absolute Pressure Ratio at Valve Outlet Connection
1. The curves above will vary from one size of
valve and orifice combination to the other.
The curves shown on this page represent
the most conservative back pressure correc-
tion factor for all series of valves (except
Series 700) shown in this catalog. The sizing
software will utilize the actual back pressure
correction factor for the valve selected.
2. When capacity reduction is represented by
the above curves, it is due to obtaining criti-
cal pressure or higher at the valve’s nozzle
exit for full lift valves or curtain area for
restricted lift valves. PN is greater than P2because of the pressure drop that occurs in
the downstream body geometry.
Notes
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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
1. The curves above are the actual correction
values for all series 700 configurations.
2. When capacity reduction is represented by
the above curves it is due to obtaining criti-
cal pressure or higher at the valve’s nozzle
exit (PN). There is no significant pressure
loss in the downstream body geometry,
therefore PN = P2.
Sizing
1.0
0.98
0.96
0.94
0.92
0.90
0.88
0.86
0.4 0.45 0.50 0.55 0.60 0.65 0.70
B a c k P r e s s u r e F a c t o r , K b
P2 / P1 = Absolute Pressure Ratio at Valve Outlet Connection
k = 1.0
k = 1.2
k = 1.4
k = 1.6
k = 1.8
k = 2.0
Back Pressure Correction Factor for Series 700
Notes
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Steam Super Heat Correction Factor, Ks
Set Saturated Total Steam Temperature °F [°C]
Pressure Steam 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560
psig [barg] Temp.°F [°C] [138] [149] [160] [171] [182] [193] [205] [216] [227] [238] [249] [260] [271] [282] [293]
15 [1.03] 250 [121] 1.00 1.00 1.00 .99 .99 .98 .98 .97 .96 .95 .94 .93 .92 .91 .90
20 [1.38] 259 [126] 1.00 1.00 1.00 .99 .99 .98 .98 .97 .96 .95 .94 .93 .92 .91 .90
40 [2.76] 287 [142] 1.00 1.00 1.00 .99 .99 .98 .97 .96 .95 .94 .93 .92 .91 .90
60 [4.14] 308 [153] 1.00 1.00 .99 .99 .98 .97 .96 .95 .94 .93 .92 .91 .90
80 [5.52] 324 [162] 1.00 1.00 .99 .99 .98 .97 .96 .94 .93 .92 .91 .90
100 [6.90] 338 [170] 1.00 1.00 .99 .98 .97 .96 .95 .94 .93 .92 .91
120 [8.27] 350 [177] 1.00 1.00 .99 .98 .97 .96 .95 .94 .93 .92 .91
140 [9.65] 361 [183] 1.00 1.00 .99 .98 .96 .95 .94 .93 .92 .91
160 [11.0] 371 [188] 1.00 1.00 .99 .98 .97 .95 .94 .93 .92 .91
180 [12.4] 380 [193] 1.00 .99 .98 .97 .96 .95 .93 .92 .91
200 [13.8] 388 [198] 1.00 .99 .99 .97 .96 .95 .93 .92 .91
220 [15.2] 395 [202] 1.00 1.00 .99 .98 .96 .95 .94 .93 .92
240 [16.6] 403 [206] 1.00 .99 .98 .97 .95 .94 .93 .92
260 [17.9] 409 [210] 1.00 .99 .98 .97 .96 .94 .93 .92
280 [19.3] 416 [213] 1.00 1.00 .98 .97 .96 .95 .93 .92
300 [20.7] 422 [217] 1.00 .99 .98 .96 .95 .93 .92
350 [24.1] 436 [225] 1.00 1.00 .99 .96 .96 .94 .93
400 [27.6] 448 [231] 1.00 .99 .96 .96 .95 .93
450 [31.0] 460 [238] 1.00 .96 .96 .96 .94
500 [34.5] 470 [243] 1.00 .96 .96 .96 .94
550 [37.9] 480 [249] .97 .97 .97 .95
600 [41.4] 489 [254] .97 .97 .97 .97
650 [44.8] 497 [258] 1.00 .99 .97
700 [48.3] 506 [263] 1.00 .99 .97
750 [51.7] 513 [267] 1.00 1.00 .98
800 [55.2] 520 [271] 1.00 .99
850 [58.6] 527 [275] 1.00 .99
900 [62.1] 533 [278] 1.00 1.00
950 [65.5] 540 [282] 1.00
1000 [69.0] 546 [286] 1.00
1050 [72.4] 552 [289] 1.00
1100 [75.9] 558 [292]
1150 [79.3] 563 [295]
1200 [82.7] 569 [298]
Sizing
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Sizing
Steam Super Heat Correction Factor, Ks
Set Saturated Total Steam Temperature °F [°C]
Pressure Steam 580 600 620 640 660 680 700 720 740 760 780 800 900 1000 11
psig [barg]Temp.°F [°C] [305] [316] [326] [338] [349] [360] [371] [382] [393] [405] [416] [427] [482] [537] [5
15 [1.03] 250 [121] .89 .88 .87 .86 .86 .85 .84 .83 .83 .82 .81 .81 .78 .75
20 [1.38] 259 [126] .89 .88 .87 .86 .86 .85 .84 .83 .83 .82 .81 .81 .78 .75
40 [2.40] 287 [142] .89 .88 .87 .87 .86 .85 .84 .84 .83 .82 .82 .81 .78 .75
60 [4.14] 308 [153] .89 .88 .87 .87 .86 .85 .84 .84 .83 .82 .82 .81 .78 .75
80 [5.52] 324 [162] .89 .89 .88 .87 .86 .85 .84 .84 .83 .82 .82 .81 .78 .75
100 [6.90] 338 [170] .90 .89 .88 .87 .86 .85 .85 .84 .83 .82 .82 .81 .78 .75
120 [8.27] 350 [177] .90 .89 .88 .87 .86 .85 .85 .84 .83 .82 .82 .81 .78 .75
140 [9.65] 361 [183] .90 .89 .88 .87 .86 .85 .85 .84 .83 .82 .82 .81 .78 .75
160 [11.0] 371 [188] .90 .89 .88 .87 .86 .86 .85 .84 .83 .82 .82 .81 .78 .75
180 [12.4] 380 [193] .90 .89 .88 .87 .86 .86 .85 .84 .83 .82 .82 .81 .78 .75
200 [13.8] 388 [198] .90 .89 .88 .87 .86 .86 .85 .84 .83 .83 .82 .81 .78 .75
220 [15.2] 395 [201] .91 .90 .89 .88 .87 .86 .85 .84 .8 .83 .82 .81 .78 .75
240 [16.6] 403 [206] .91 .90 .89 .88 .87 .86 .85 .84 .84 .83 .82 .81 .78 .75
260 [17.9] 409 [209] .91 .90 .89 .88 .87 .86 .85 .85 .84 .83 .82 .81 .78 .75
280 [19.3] 416 [213] .91 .90 .91 .88 .87 .86 .85 .85 .84 .83 .82 .82 .78 .75
300 [20.7] 422 [217] .91 .90 .89 .88 .87 .86 .86 .85 .84 .83 .82 .82 .78 .75
350 [24.1] 436 [224] .92 .91 .90 .89 .88 .87 .86 .85 .84 .83 .83 .82 .78 .76
400 [27.6] 448 [231] .92 .91 .90 .89 .88 .87 .86 .85 .84 .84 .83 .82 .79 .76
450 [31.0] 460 [238] .93 .92 .91 .89 .88 .87 .86 .86 .85 .84 .83 .82 .79 .76
500 [34.5] 470 [243] .93 .92 .91 .90 .89 .88 .87 .86 .85 .84 .83 .82 .79 .76
550 [37.9] 480 [249] .94 .92 .91 .90 .89 .88 .87 .86 .85 .84 .83 .82 .79 .76
600 [41.4] 489 [254] .94 .93 .92 .90 .89 .88 .87 .86 .85 .84 .84 .83 .79 .76
650 [44.8] 497 [258] .95 .94 .92 .91 .90 .89 .87 .86 .86 .85 .84 .83 .79 .76
700 [48.3] 506 [263] .96 .94 .93 .91 .90 .89 .88 .87 .86 .85 .84 .83 .79 .76
750 [51.7] 513 [267] .96 .95 .93 .92 .90 .89 .88 .87 .86 .85 .84 .83 .79 .76
800 [55.2] 520 [271] .97 .95 .94 .92 .91 .90 .88 .87 .86 .85 .84 .84 .80 .76
850 [58.6] 527 [275] .98 .96 .94 .93 .92 .90 .89 .88 .87 .86 .85 .84 .80 .76
900 [62.1] 533 [278] .99 .97 .95 .93 .92 .90 .89 .88 .87 .86 .85 .84 .80 .77
950 [65.5] 540 [282] .99 .97 .95 .94 .92 .91 .89 .88 .87 .86 .85 .84 .80 .77
1000 [69.0] 546 [286] .99 .98 .96 .94 .93 .91 .90 .89 .87 .86 .85 .84 .80 .77
1050 [72.4] 552 [289] 1.00 .99 .97 .95 .93 .92 .90 .89 .88 .87 .86 .85 .80 .77
1100 [75.9] 558 [292] 1.00 .99 .98 .95 .94 .92 .91 .89 .88 .87 .86 .85 .81 .77
1150 [79.3] 563 [295] 1.00 .99 .98 .96 .94 .92 .91 .90 .88 .87 .86 .85 .81 .77
1200 [82.7] 569 [298] 1.00 .99 .98 .97 .95 .93 .91 .90 .89 .87 .86 .85 .81 .77
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Sizing
Effective API Orifice Area, in2 [cm2]
Valve Size Types 253, 453, 853 Types 243, 443, 843 Types 2632 , 4632 , 8632 Type 727
in [mm] Type 259 Type 249 Type 2692
Type 546 Type 5662
1 x 2 0.110 (‘D’) [0.710]
[25 x 50]0.307 (‘F’) [1.981] — —
11 / 2 x 2 0.196 (‘E’) [1.265]
[40 x 50]
11 / 2 x 2
[40 x 50]0.503 (‘G’) [3.245]3 0.785 (‘H’) [5.065]3 1.320 [8.516] —
11 / 2 x 30.503 (‘G’) [3.245] 0.785 (‘H’) [5.065] — —
[40 x 80]
0.503 (‘G’) [3.245]2 x 3 0.503 (‘G’) [3.245]
1.287 (‘J’) [8.303] 2.554 [16.47] 0.785 (‘H’) [5.065][50 x 80] 0.785 (‘H’) [5.065]
1.287 (‘J’) [8.303]
2 x Dual 3–– –– 2.554 [16.47] ––
[50 x Dual 80]
1.287 (‘J’) [8.30]3 x 4 1.287 (‘J’) [8.303]
2.853 (‘L’) [18.41] 5.938 [38.31] 1.838 (‘K’) [11.86][80 x 100] 1.838 (‘K’) [11.86]
2.853 (‘L’) [18.41]
3 x Dual 4–– –– 5.938 [38.31] ––
[80 x Dual 100]
2.853 (‘L’) [18.41]
4 x 62.853 (‘L’) [18.41]
3.600 (‘M’) [23.23]
[100 x 150]3.600 (‘M’) [23.23] 6.380 (‘P’) [41.16] 9.489 [61.21]
4.340 (‘N’) [28.00]4.340 (‘N’) [28.00]
6.380 (‘P’) [41.16]
4 x Dual 6–– –– 9.489 [61.21] ––
[100 x Dual 150]
11.05 (‘Q’) [71.29]6 x 8
11.05 (‘Q’) [71.29] 16.00 (‘R’) [103.2] 20.57 [137.7] 16.00 (‘R’) [103.23][150 x 200]
18.58 (‘RR’) [119.8]4
6 x Dual 8
[150 x Dual 200]— — 20.57 [137.7] —
8 x Dual 8
[150 x Dual 200]— — 28.36 [182.9] —
8 x 10
[200 x 250]— 26.00 (‘T’) [167.7] 38.96 [251.3] 26.00 (‘T’) [167.74]
8 x Dual 10[200 x Dual 250]
— — 38.96 [251.3] —
Effective Nozzle Coefficient of
Discharge for 90% of Actual
Capacity
Service Kd
Gas 0.975
Liquid 0.650
Steam 0.975
Notes
1. Not available in 1” x 2” or 1.5” x 2” sizes.
2. There are no recognized API ‘full-bore’
orifice areas. These effective areas are
specific to Anderson Greenwood.
3. Threaded body only.
4. Series 700 is available in a non-standard
RR orifice 18.580 in2 [119.871 cm2].
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Once you have determined the basic type
(e.g., Series 200, 400, etc.) of valve
required in Part 1 and determined your
required orifice area in Part 2, please refer
to the following information to specify andorder the pressure relief valve best suited
for your application.
Note: To ensure proper delivery and
expedite processing, please include
the model number and any additional
information requested below in all
specifications, purchase requisitions, and
orders, as applicable.
Constructing a Model Number
To construct the model number, identify
the seven components on the Valve Model
Numbering chart on page 52. Use theresulting assembled number when
ordering your valve.
Specifying Other
Information for Your Order
The following information might be
required, depending on the type of valve
and other requirements:
Special Requirements
Please specify the details of any special
procedures you require during valve
manufacturing.
These might include unlisted accessories,
special quality assurance, material
traceability, non-standard plating and
surface finishes, non-destructive test
requirements, etc. Include required levels
of inspection and the parties or
organizations who will perform the
inspections, if any. Note: Special
requirements can impact price and
delivery.
Valve Tagging
If paper tags are requested at the time the
valve is ordered, they will be furnished at
no additional cost. Other types of taggingare offered at additional cost. If you would
like metallic tags, please identify the
specific tag material, and tag numbers
when you place your order.
Documentation
Data submittals are not furnished for
ordered products unless specified. Certain
standard drawings, test reports, and
certifications are available at no cost,
upon request.
Packing for Shipment
All products are packed for normaldomestic shipment from point of assembly
or stocking. Special packaging
requirements, such as export boxing,
should be specified in your purchase
order.
Ordering Information
To properly process your order and avoid
delay, please specify the following:
• Quantity
• Inlet Size and Flange Rating andFacing (see page 44)
• Outlet Size and Flange Rating andFacing (see page 63)
• Anderson Greenwood Type ModelNumber (see page 52)
• Orifice Size (see page 30)
• Material Requirements(see pages 32 - 43)
– Main Valve Body
– Main Valve Trim
– Pilot
• Soft Goods (see page 44 - 50)
• Set Pressure
• Allowable Overpressure• Service (Gas, Vapor, Liquid, Steam)
• Temperature (Operating and Relief)
• Operating Pressure
• Back Pressure (ConstantSuperimposed, Variable Superimpo
and Built-up)
• Required Relief Capacity
• Molecular Weight (Gas) or SpecificGravity (Liquid)
• Ratio of Specific Heats (Gas)
• Optional Accessories(see pages 53 - 57)
– Field Test Connection
– Field Test Indicator
– Manifold Dual Pilot
– Backflow Preventer
– Pilot Supply Filter
– Pressure Spike Snubber
– Remote Pressure Sense Connect
– Remote Valve Lift Indicator
– Manual Unloader
– Pilot Lift Lever
– Remote Unloader
– NACE Option
How to Order a Valve
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Series 200/400/500/800 - Standard Main Valve
Materials of Construction
Item Description /S1 /S1/NACE /S /S/NACE
-20°F to +1000°F1 -20°F to +1000°F1 -450°F to +1500°F1 -450°F to +1500°F1
[-29°C to +537°C1] [-29°C to +537°C1] [-268°C to +816°C1] [-268°C to +816°C1]
1 Body SA216-WCB/WCC CS SA216-WCB/WCC CS SA351-CF8M SS SA351-CF8M SS
2 Cap SA516-70 SA516-70 SA240-316 SA240-316
3 Cap Bolting A449/A325 CS A449/A325 CS A193-B8M SS A193-B8M SS
A479-316 or A479-316 or A479-316 or A479-316 or4 Nozzle
A351-CF8M SS A351-CF8M SS A351-CF8M SS A351-CF8M SS
5 PistonA564-630 (17-4 PH), A564-630 (17-4 PH), A564-630 (17-4 PH), A564-630 (17-4 PH),
A479-316 or A351-CF8M SS A479-316 or A351-CF8M SS A479-316 or A351-CF8M SS A479-316 orA351-CF8M SS
A479-316 or A479-316 or A479-316 or A479-316 or6 Liner
A351-CF8M A351-CF8M A351-CF8M SS A351-CF8M SS
7 Dipper Tube 17-4 PH SS 17-4 PH SS 17-4 PH SS 17-4 PH SS
8 Dome Spring 316 SS Not Used 316 SS Not Used
9 Tube Fittings A576 CS2 SA182-316 SS SA182-316 SS SA182-316 SS
10 Seat see page 44 see page 44 see page 44 see page 44
11 Piston Seal see page 44 see page 44 see page 44 see page 44
Nozzle A747-CB7CU-1 SS or A747-CB7CU-1 SS or A747-CB7CU-1 SS or A747-CB7CU-1 SS or12
Retainer 17-4 PH SS 17-4 PH SS 17-4 PH SS 17-4 PH SS
13 Seat Retainer A479-316 SS A479-316 SS A479-316 SS A479-316 SS
14 Seat Retainer Screw 316 SS 17-4 PH SS 316 SS 17-4 PH SS
3
8
6
13
10
12
4
9
7
92
11
5
14
1
Notes
1. Maximum temperature relates to fire case
conditions. Continuous service temperature
is limited by the choice of seat and sealmaterials.
2. SS for Series 500.
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9
21
14 15
22
10
5
1
813
7
6
18
16
17
2
20
4 11 12 19
3
Materials of Construction
Item Description /S /S1 /S2 /S3
Ambient to 1000°F Ambient to 600°F 601°F to 800°F 801°F to 1000°F
[Ambient to 538°C] [Ambient to 316°C] [318°C to 427°C] [427°C to 538°C]
1 Body SA351-CF8M SS SA216-WCB CS SA216-WCB CS SA217-WC6 AS
2 Cap SA240-316 SA516-70 SA516-70 SA387-11
3 Nozzle A351-CF8M SS A351-CF8M SS A351-CF8M SS A351-CF8M SS
4 Piston Assembly A217CA-151 A217CA-151 A217CA-151 A217CA-151
5 Liner A479-410 A479-410 A479-410 A479-410
6 Stud A193-B7 A193-B7 A193-B7 A193-B7
7 Nut A194-2H A194-2H A194-2H A194-2H
8 Piston Damper A479-410 A479-410 A479-410 A479-410
9 Retainer Screw A574 A574 A574 A574
10 Dome Spring Inconel® Inconel® Inconel® Inconel®
11Damper Ring with
Ductile Iron Ductile Iron Ductile Iron Ductile IronCentralizer Spring
Piston Seal Ring with12
Centralizer SpringDuctile Iron Ductile Iron Ductile Iron Ductile Iron
13 Liner Seal GRAFOIL® GRAFOIL® GRAFOIL® GRAFOIL®
14 Seal Extrusion Ring 1018 STL 1018 STL 1018 STL 1018
15 Nozzle Seal Thermabraid SS Thermabraid SS Thermabraid SS Thermabraid SS
16 Drain Spring 316 SS 316 SS 316 SS 316 SS
17 Drain Plunger 17-4 SS 17-4 SS 17-4 SS 17-4 SS
18 Pipe Plug, Hex HD 316 SS 316 SS 316 SS 316 SS
19 Filter Assembly 316 SS 316 SS 316 SS 316 SS
20 Pitot Tube Seal GRAFOIL® GRAFOIL® GRAFOIL® GRAFOIL®
21 Belleville Washer 17-7 SS 17-7 SS 17-7 SS 17-7 SS
22 Disc 718 Nickel Alloy 17-4 SS or 718 Nickel Alloy 718 Nickel Alloy 718 Nickel Alloy
Notes
1. Inconel ® is a registered trademark of
International Nickel Company.
2. GRAFOIL ® is a registered trademark of
UCAR Carbon.
Series 700 - Standard Main Valve
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Series 200 Pilot
11
7
8
1
19532
20
29
16
26
Supply
27
22
25
15
14
13
12
9
10
9
6
4
Dome
17
18
28
23
21
24
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Series 200 Pilot
Materials of Construction
Item Description /S1, /S, /S1/NACE, /S/NACE
1 Body A479-316 SS
2 Nozzle Seal PCTFE
3 Nozzle A479 316 SS
4 Seat See Soft Goods (page 46)
5 Seat Retainer (upper) A479 316 SS
6 Spindle A479 316 SS/CR PL
7 Guide A479 316 SS
8 Bonnet Seal See Soft Goods (page 46)
9 Spring Washer A479 316 SS
10 Spring 316 SS1
11 Bonnet A479 316 SS
12 Jam Nut 316 SS
13 Pressure Set Screw A276 316 SS
14 Cap A479 316 SS2
15 Blowdown Adjustment Screw A479 316 SS
16 Blowdown Adjustment Seal See Soft Goods (page 46)
17 Seat Retainer (lower) A276 316 SS
18 Piston Seal See Soft Goods (page 46)
19 Spacer A276 316 SS
20 Reseat Seat A479 316 SS
21 Bushing Seal See Soft Goods (page 46)
22 Reseat Adjustment Bushing A479 316 SS
23 Spacer Washer 316 SS
24 Blowdown Seal Teflon® TFE
25 Jam Nut 316 SS
26 Inlet Screen 316 SS
27 Reseat Piston A276 316 SS
28 Pipe Plug A479 316 SS
29 Vent Zytel®3 /316 SS
Notes
1. For NACE trim, item 10 is Inconel ® .
2. A582 303 SS above 1480 psig [102.1 barg].
3. Zytel ® is a registered trademark of the E.I.
duPont de Nemours Company.
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Series 400 Pilot (Gas Service)
16
17
18
15
19
6
13
12
4and42
14
41
23
7
27
11
28
5
1 29 2 30 31
13
39
38
10
20and21
40
26
35
22
24
25
3
8
Dome
34
33
32
9
12
40
22
24
25
3
39
10
36
35
26
43
44
9
3 26
39
12
301 - 740 psig
[20.8 - 51.0 barg]
741 - 1480 psig[51.1 - 102 barg]
15 - 300 psig
[1.03 - 20.6 barg]
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Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
1 Body A479-316 SS A479-316 SS
2 Body Plug A479-316 SS A479-316 SS
3 Feedback Piston A479-316 SS A479-316 SS
See Soft Goods See Soft Goods4 Sense Diaphragm
(page 44) (page 44)
5 Inlet Nozzle A479-316 SS A479-316 SS
6 Spring 17-7 SS1 17-7 SS
7 Inlet SeatSee Soft Goods
(page 44)Viton®
8 Spool Spring 302 SS Elgi loy
9 Piston Nut 316 SS 316 SS
10 Sense Washer A479-316 SS 316 SS
11 Bias Spring 316 SS Elgiloy
See Soft Goods12 Upper Piston Seal
(page 44)Viton®
13 Spring Washer A479-316 SS A479-316 SS
14 Diaphragm Case A479-316 SS A479-316 SS
15 Spring Bonnet A351-CF8M SS A351-CF8M SS
16 Adjustment Screw A276-316 SS A276-316 SS
17 Jam Nut A479-316 SS A479-316 SS
18 Cap A582-303 SS A582-303 SS
19 Bonnet Vent Zytel® Zytel®
20 Case Bolt A193-B8M SS2 A193-B8M SS2
21 Body Bolt A193-B8M SS2 A193-B8M SS2
See Soft Goods22 Case/Liner Seal
(page 44)Viton®
23 Bushing A26-316 SS A276-316 SS
24 Piston Sleeve A479-316 SS A479-316 SS
See Soft Goods25 Sleeve/Case Seal
(page 44)Viton®
Notes
1. 316 SS for set pressure range 15 – 65 psig [1.03 – 4.48 barg].
2. 302SS for set pressure range 501– 1480 psig [34.5 – 102.1 barg].
3. Viton ® is a registered trademark of the E.I. duPont de Nemours
Company.
See Soft Goods26 Lower Piston Seal(page 44)
Viton®
See Soft Goods27 Inlet Nozzle Seal
(page 44)Viton®
A564-630 A564-63028 Outlet Nozzle
(17-4PH) SS (17-4PH) SS
Upper Outlet See Soft Goods29
Nozzle Seal (page 44)Viton®
See Soft Goods30 Body Plug Seal
(page 44) Viton®
See Soft Goods31 Spool Seal
(page 44)Viton®
Lower Outlet See Soft Goods32
Nozzle Seal (page 44)Viton®
See Soft Goods33 Outlet Seat
(page 44)Viton®
34 Spool A479-316 SS A479-316 SS
Diaphragm35
Retainer WasherA479-316 SS A479-316 SS
Diaphragm36
Support PlateA479-316 SS A479-316 SS
38 Sense Plate A479-316 SS A479-316 SS
39 Lock Washer A479-316 SS A479-316 SS
See Soft Goods40 Diaphragm Seal
(page 44)Viton®
See Soft Goods41 Body/Case Seal
(page 44)Viton®
42 Diaphragm Shield Teflon®-FEP Teflon®-FEP
43 Sense Piston A479-316 SS A479-316 SS
See Soft Goods44 Piston Sense Seal
(page 44)Viton®
Series 400 Pilot
Materials of Construction
Item Description /S1, /S /S1/NACE, /S/NACE Item Description /S1, /S /S1/NACE, /S/N
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Series 500 Pilot
12
24
13
31
30
17
18
25
14
35and 32
16
6
35and 32
9
26
21
4
28
2
1
23
10
11
3
19
7
34
22
5
29and33
8
20
15
27
7
8
9
275 - 720 psig
[19.0 - 51.0 barg]
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Series 500 Pilot
Materials of Construction
Item Description /S1, /S, /S1/NACE, /S/NACE
1 Body A351 GR. CF8M
2 Nozzle A479-316 SS
3 Spindle A276-316 SS
4 Socket/Seat A479-316 SS
5 Diaphragm Support Plate A479-316 SS
6 Spacer Ring A479-316 SS
7 Sense Plate A479-316 SS
8 Boost Plate A479-316 SS
9 Diaphragm Shield A240-304 SS
10 Bonnet A351-CF8M SS
11 Spring Washer A479-316 SS
12 Pressure Adjustment Screw A276-316 SS
13 Bonnet Insert SA564-670 (17-4) SS
14 Bonnet Seal BUNA-N
15 Spindle Seal Teflon®-TFE1
16 Plate Boost Seal Teflon®-TFE
17 Spring 316 SS2
18 Bonnet Vent Aluminum
19 Lock Washer3 316 SS
20 Shim Washer 18-8 SS4
21 Retainer Screw 18-8 SS5
22 Bolt 17-4 SS PH
23 Cap A582-303 SS
24 Jam Nut A479-316 SS
25 Jam Nut 18-8 SS
26 Seal Retainer A479-316 SS
27 Seat PEEK
28 Ball 316 SS6
29 Diaphragm Teflon®-FEP Type L7
30 Nameplate A240-304 SS
31 Drive Screw 304 SS
32 Gasket3 Teflon®-TFE
33 Diaphragm Hastelloy®8
34 Spindle Gasket Teflon®-FEP
35 Gasket PEEK9
Notes
1. Carbon filled Teflon ® -TFE seal Hastelloy ®
spring loaded.
2. 316 SS used 60 psig [4.14 barg] and
below, 17-7 SS used 61 – 720 psig
[4.21 -49.6barg].
3. Used 180 psig [12.4 barg] and below.
4. 316 SS Annealed for NACE.
5. Monel ® for NACE
6. Hastelloy ® C for NACE.
7. Upper and lower diaphragm, 15 – 30 psig
[1.03 – 2.07 barg], lower diaphragm only,
31 – 120 psig [2.14 – 8.27 barg].
8. Upper diaphragm only 31 – 120 psig [2.14
– 8.27 barg], upper and lower diaphragm,
121 – 720 psig [8.34 – 49.6 barg].
9. Used above 180 psig [12.4 barg].
10. Hastelloy ® is a registered trademark of
Haynes International.
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Note
1. ALYMP35N ® is a registered trademark of
SPS Technologies, Inc.
Series 700 Pilot
Materials of Construction
Item Description /S1, /S2, /S3, /S
1 Body SS A479-3162 Lift Lever Bonnet SS A479-316
3 Cap SS A479-316
4 Spring Washer SS A479-316
5 Adjusting Screw SS A479-316
6 Hex Jam Nut SS 316
7 Spring Inconel® X750
8 Spindle SS 17-4
9 Disc SS 17-4
10 Nozzle SS 17-4
11 Nozzle Seal GRAFOIL® /SST
12 Reseat Seat SS 17-413 Spacer SS 17-4
14 Cage Guide SS A479-316
15 Reseat Piston SS 17-4
16 Blowdown Adjustment Bushing SS A479-316
17 Thread Seal GRAFOIL®
18 Blowdown Adjustment Nut SS A479-316
19 Blowdown Adjustment Packing GRAFOIL®
20 Safety Lock Screw SS 18-8
21 Blowdown Adjustment Screw SS A479-316
22 1 / 2 NPT Pipe Plug SS A479-316
23 Vent Aluminum24 Shim SS 316
25 Lever SS 316
26 Torsion Spring SS 316
27 O-ring Teflon®
28 Lock Washer SS 18-8
29 Roll Pin SS 420
30 1 / 4-28 x 1 / 4 Bolt SS 18-8
31 Cam SS 316
32 Gland Nut SS A479-316
33 Gag Rod SS 300 or 4130 Alloy Steel
34 Gag Rod Lever SS 18-835 Bolt SS A193-B8M
36 Ball SS 440C
37 Disc Spring Washer ALYMP35N®
38 Bonnet Spring Washer SS 17-4
39 Adjustment Screw Retainer SS 17-4
40 Stop Pin SS 18-8
41 Packing Retainer SS 316
42 Blowdown Adjustment Sleeve SS 17-4
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Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0243
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Series 800 Pilot
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8/18/2019 Pilot Catalog
44/65
Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800
Copyright © 2004 Tyco Flow Control. All rights reserved. ANGMC-0
Series 800 Pilot
Materials of Construction
Item Description /S1, /S /S1/NACE, /S/NACE
1 Body A564-630 H1150 17-4 SS A564-630 H1150 17-4
2 Inlet Bushing A564-630 H1150 17-4 SS A564-630 H1150 17-4
3 Outlet Nozzle A564-630 H1150 17-4 SS A564-630 H1150 17-4
4 Inlet Nozzle A564-630 H1150 17-4 SS A564-630 H1150 17-4
5 Bonnet A351-CF8M SS A351-CF8M SS
6 Bonnet Lock Bolt 316 SS 316 SS
7 Inner Spool A564-630 H1150 17-4 SS A564-630 H1150 17-4
8 Outer Spool A564-630 H1150 17-4 SS A564-630 H1150 17-4
9 Spool Nut A564-630 H1150 17-4 SS A564-630 H1150 17-4
10 Feedback Piston A564-630 H1150 17-4 SS A564-630 H1150 17-4
11 Sense Piston A564-630 H1150 1 7-4 SS A564-630 H1150 17-4
12 Feedback Spacer A269-316 SS A269-316 SS
13 Lock Washer 316 SS 316 SS
14 Hex Nut A194-8M