Series 1200 Globe Valves Pressure Class ASME 150-600/DIN PN10-100

PRECISION I RELIABILITY I PERFORMANCE

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Contents

Series 1200 Globe Valves overview 01

Design features & performance benefits 02

Engineering data 02

Valve body style option 04

Bonnet options 04

Standard trim options available 05

Flow coefficients 06

Noise & cavitation control 07

Standard dimensions & weights 08

Derived from the Series 5000 range of globe valves, the Series 1200 range benefits from more than 30 years of in-field experience to deliver cost effective, easily maintained, reliable and high quality valves for the most punishing applications.

The wide choice of materials used for manufacture offers bespoke application solutions, while the smooth body flow path reduces turbulence, minimising the effects of erosion and noise.

Series 1200 Globe Valves 01

SERIES

02 Series 1200 Globe Valves

Series 1200 Globe Valve

Design features Smooth profile cast globe, angle and three way body construction

Quick-change trims standard with screwed-in seat option

Wide choice of trim sizes available with low noise and anti-cavitation options

Robust parts for trouble free service and low maintenance costs

Inherently characterised trims available in linear, bi-linear, equal percentage, quick open or semi-throttle

Substantial guiding

Wide choice of packing systems

Integral plug stem construction option

Both balanced and unbalanced trim designs with soft seat insert options

Performance benefits Top-entry servicing with immediate access to plug and seat

Reduced inspection and maintenance costs

Trims are easily installed

Excellent flow capacity and control rangeability

Design reduces potential erosion and noise issues

Reliable leakage performance. Bubble tight shut off available

High interchangeability between sizes and other products

Rigorous in-field testing

Manufactured to ISO 9001 certification and compliant with PED requirements

Low actuating forces required with balanced trim styles

Engineering dataThe Series 1200 range of valves provides a cost effective, reliable and easily maintained control valve capable of working in the most rigorous environments.

The quick-change trim option allows easily accessible trim components to minimise fitting and replacement times.

Stem-guided contoured trim in both balanced and unbalanced configuration gives excellent rigidity and resistance to vibration and service wear. The valve is designed to accommodate other products within the Severn Glocon range, for example, CC (Concentric Cages) low noise, and anti-cavitation trims.

Series 1200 Globe Valves 03

Engineering data (continued)

Design standard

ASME B16.34 PED En ISO 9001:2001

Valve body ratings

ASME 150 – ASME 600

Body configurations

Two way globe straight, angle body and three way body.

Body face to face dimensions

ANSI/ISA 75.08

Bonnet styles

Standard and normalising. For other styles please contact us.

Standard bonnet packing

Teflon/Chevrons and Graphite.

Trim options

Stem-guided contoured trim, “Quick change,” Concentric Cage(s), Multi-step, Micro Spline and Trickle Trim.

Inherent trim characteristics

Linear, bi-linear, equal percentage, quick open or semi-throttle.

Plug options

Balanced, Unbalanced Cage / Top guided Hard faced or solid hard plugs Soft seat option

Plug/Seat Leakage Class

ANSI/FCI 70.2. Class IV as standard, Class V with metal seat and Class VI with soft seat insert.

Materials of construction

A wide range of standard materials is available for both the valve pressure containing parts and trim, including carbon and stainless steel, duplex/super duplex and high nickel alloys. Stellite, and other hard facings/coatings are available. For further details on materials please contact us.

Paint

A wide range of paint finishes are available including enamel, alkyd gloss and various epoxy finishes.

Direction of flow

Either direction – depending upon application.

Preferred flow directions are:

Contoured unbalanced (1" to 4"): Flow under CC Trim unbalanced (up to 4"): Flow under CC Trim balanced (6",8",10"): Flow under or over Anti cavitation CC Trim: Flow under or over Flashing service: Flow under or over Noise abatement CC Trim (6",8",10"): Flow under

Clean build

Severn Glocon maintains high clean build standards, utilising clean build areas including Oxygen Clean and a Ultra High Purity Clean Rooms.

Inspection and testing

Severn Glocon undertakes the highest levels of inspection and testing which meet international and customer requirements.

Instruments

A wide range of control instruments is available from Severn Glocon including positioners, air-filter regulators, volume boosters, solenoid valves, and lock-up valves.

04 Series 1200 Globe Valves

Valve body style option The Series 1200 valve is available in three basic body styles – globe, angle or three way. Apart from the valve bodies, many parts are interchangeable. The angles pattern has an optional venturi seat which provides additional protection for the valve outlet.

Globe body Angle body Three way body

Standard bonnet

This enables the formation of a deep packing box together with a long guide housing, thereby providing a robust and vibration-resistant assembly. Teflon rings are the standard packing up to 250 °C.

Normalising bonnet

Protects the packing from excessive heat or cold, which may adversely affect valve, or packing performance. Application temperature range depends upon the valve and bonnet construction materials.

Bonnet options Usually constructed in the same material as the valve body, selection of the bonnet design is undertaken on the basis of both the operating temperature range and the fluid media handled. A temperature range of -190 °C to 580 °C is achievable.

Balanced bonnet

These are suitable for temperatures up to 580 °C when fitted with graphite packing and graphite balancing rings – or up to 232 °C when fitted with PTFE packing and a PTFE balance seal.

Balanced seal installation

Balance seal Seal retainer

Series 1200 Globe Valves 05

Standard trim options available

Unbalanced trim

Soft seat insert

Balanced trim

Spline

Hard facing options

CC cage trim

Standard duty – normal flows “Quick Change” balanced and unbalanced contoured trim are available. Suitable for modulating and on / off duty.

Valve size options

Standard range up to 10in. For large sizes please contact us.

Plug options

Balanced and unbalanced, contoured metal seated. Resilient / soft seat insert option available.

Characteristics available

Equal %, Linear or Semi-throttle. Others on request.

Direction of flow

Either direction – depends upon application.

Hard trim options

Hard coatings / facings – seat area or full contour. Solid – seat and / or plug. Wide choice of materials depends on service conditions.

Soft / resilient seating

Soft seat insert fully supported and integral within the seat.

Standard duty – low flows The Trickle Trim / Micro Spline range provides for high rangeability and control of low flow rates.

Plug options

Unbalanced with metal to metal seating faces.

Direction of flow

Either direction – depends upon application.

Guiding

Top guided.

Severe service dutiesSingle / Multiple Concentric Cage (CC) trims are available for higher pressure drop applications to prevent the onset of cavitation and to reduce noise levels.

06 Series 1200 Globe Valves

Flow coefficients CvThe Cv values detailed in the tables are at the maximum rated travel and stated in US units. The figures by definition are related to the flow of water (Specific gravity = 1) in US Gallons per minute with a pressure drop 1psi.

The Cv values mentioned below are normal. Please contact us for process Cv over 80% of the rated Cv.

Table 2: Contoured and multi-step trims

Table 3: Single stage cage trims

Table 3: Double stage cage trims

Note: Multi-step trim options are indicated in green. For other options please contact us.

Table 1: Trickle trims

Note: These trims are available with only linear flow/lift characteristics

Valve size Available trim Cv

in mm ASME 150, 300, 600

1 25 0.01 0.05 0.1 0.15 0.25 0.50 0.95 1.45

Valve size Available trim Cv

in mm ASME 150, 300, 600

1 25 1 1.5 2.5 4 6 9 12

1 1/2 40 1 1.5 2.5 4 6 9 12 16 20 25

2 50 1 1.5 2.5 4 6 9 12 16 20 25 30 35 46

3 80 15 25 30 46 75 99

4 100 25 46 75 110 135 195

Valve size Available trim Cv

in mm ASME 150, 300, 600

1 25 2 4 6 9 12

1 1/2 40 9 12 16 25

2 50 12 25 30 35 46

3 80 30 46 75 99

4 100 75 110 135 170

6 150 130 200 240 300 35

8 200 300 400 500 600

10 250 400 550 825

Note: For valve and trim sizes outside this range please contact us.

Note: For valve and trim sizes outside this range please contact us.

Valve size Available trim Cv

in mm ASME 150, 300, 600

1 25 2 4 6

1 1/2 40 9 15

2 50 16 25

3 80 22 30

4 100 40 75 100

6 150 75 130 175

8 200 200 350

10 250 420 550

Series 1200 Globe Valves 07

Noise & cavitation control As a fluid passes through a restriction, such as the trim in a valve, a pressure reduction and subsequent velocity increase takes place. The point of lowest pressure and highest velocity that occurs immediately after the restriction is called the vena contracta, after which the pressure recovers and the fluid velocity is reduced. The trim design has a great influence on the amount of recovery.

In the case of liquids, if the pressure at the vena contracta goes below the liquid’s vapour pressure, bubbles are formed. If the subsequent pressure recovery to P2 (downstream pressure) exceeds the fluid’s vapour pressure – the vapour bubble collapses or implodes – so called cavitation. This can occur within the valve, or in the downstream pipe work. The energy dissipated can cause extensive damage to both the valve and the pipe work. If the pressure recovery stays below the fluid’s vapour pressure then flashing occurs. Multi-stage pressure let down or anti-cavitation valve trim designs enable the required pressure drop across the valve to be achieved in a number of stages as illustrated in above diagram.

The velocity of the fluid through the valve has a major influence on the erosive effect of the fluid on the valve body and trim, so the control of fluid velocity and the appropriate selection of materials is critical to the valve performance and service life.

Higher fluid velocities, particularly in gas service, can generate noise in the valve and pipe work – thus velocity control is major factor in containing noise emissions within acceptable limits (normally <85 dBA).

Severn Glocon’s valve trim designs, engineered for specific applications, may include a combination of

Multi-stage pressure reduction stages

Tortuous paths – as the fluid changes direction, energy is dissipated

Flow impingement of one flow path onto another also causes energy loss

Through our World Class Engineering Intelligence, Severn Glocon can provide the ideal trim solution having considered the process control conditions and the preferred flow direction, as well as initial and life cycle costs.

Explanation of cavitation control using multistage low recovery trim

P1

P2

P2

Pv

Pvc

1st stage

2nd stage

3rd stage

Three stage low recovery valve trim

Cavitating flow

Vapour pressure

Vena contracta pressure

Flashing flow

FLOW PATH

PR

ES

SU

RE

Single stage high recovery valve trim

08 Series 1200 Globe Valves

Standard dimensions & weights

1200 Series valve fitted with W Series Actuator

1200 Series valve fitted with W Series Actuator with side

mounted HW

Table 4: Dimensions of standard 1200 unbalanced valve with W Series Actuator

Valve ACT Stem DIM "A" DIM Approx. weight DIM

Size Size Travel 150# 300# 600# "B" "C" "D" 150# 300# 600# "E" "F" "G"

in in² in Standard dimensions Without HW kg kg kg Side mounted HW

1 75 0.75 184 197 210 67 330 654 37 40 42 797 129 229

1.5 75 0.75 222 235 251 83 330 698 40 43 45 872 129 229

1.5 75 1.5 222 235 251 83 330 775 40 43 45 958 129 229

2 75 1.125 254 267 286 108 330 717 45 47 50 920 129 229

2 75 1.5 254 267 286 108 330 793 45 47 50 976 129 229

3 150 1.5 298 318 337 127 457 841 106 110 114 920 163 305

3 150 2.25 298 318 337 127 457 1027 106 110 114 1283 163 305

4 150 1.5 353 368 394 127 457 940 145 155 167 1146 163 305

4 150 2.25 353 368 394 127 457 1053 145 155 167 1309 163 305

6 150 1.5 451 473 508 171 457 990 266 284 315 1237 163 305

6 150 2.25 451 473 508 171 457 1100 266 284 315 1400 163 305

Series 1200 Globe Valves 09

Table 5: Dimensions of standard 1200 balanced valve with W Series Actuator

Valve ACT Stem DIM "A" DIM Approx. weight DIM

Size Size Travel 150# 300# 600# "B" "C" "D" 150# 300# 600# "E" "F" "G"

in in² in Standard dimensions Without HW kg kg kg Side mounted HW

1.5 75 0.75 222 235 251 83 330 669 45 47 50 863 129 229

2 75 1.125 254 267 286 108 330 707 50 52 55 910 129 229

2 75 1.5 254 267 286 108 330 783 50 52 55 966 129 229

3 150 1.5 298 318 337 127 457 915 136 138 140 1121 163 305

3 150 2.25 298 318 337 127 457 1028 136 138 140 1284 163 305

4 150 1.5 353 368 394 127 457 949 177 187 192 1155 163 305

4 150 2.5 353 368 394 127 457 1062 177 187 192 1318 163 305

6 150 1.5 451 473 508 171 457 1031 284 302 333 1237 163 305

6 150 2.25 451 473 508 171 457 1144 284 302 333 1400 163 305

8 300 2.5 543 568 610 210 616 1249 368 388 423 1725 213 381

8 300 3.5 543 568 610 210 616 1512 368 388 423 1756 213 381

10 300 3.5 673 708 753 229 616 1535 698 728 813 1789 213 381

10 300 4 673 708 753 229 616 1634 698 728 813 1848 213 381

Note:

1 For other sizes please contact us 2 For dimensions where unit is not indicated consider the unit as “mm” 3 Dimensions shown may vary depend upon options selected on actual product

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Olympus Park Quedgeley Gloucester Gloucestershire GL2 4NF England

T. +44 (0)845 223 2040 F. +44 (0)845 223 2041 sales@severnglocon.co.uk www.severnglocon.com