mss-sp-118 (1996)
DESCRIPTION
MSS-SP-118 (1996)TRANSCRIPT
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MSS S P - I 1 1 8 7b
5770640
0500820 033 W
A N D A R D
P R A C T I C E
118
COMPACT STEEL GLOBE CHECK VALVES
FLANGED, FLANGELESS, THREADED
WELDING ENDS
CHEMICA L PETROL EUM REFINERY SERVICE)
Developed and Approved
by the
Manufacturers Standardization S ociety
of the
Valve and Fittings Industry, Inc.
127 Park Street,
N.E.
Vienna, Virginia 22180
(703) 281461 3
Approved October
1996
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MSS S P - 1 1 8
96
5770640
0500823
T 7 T
MSS
STA ND AR D PRACTICE
SP-118
An M SS Stand ard Practice is intended as a basis for com mo n practice by the man ufactur er, the user, and the
general public. The existence of an M SS St an da rd Practice does not in itself preclude the manu facture, sale,
or use of products not conforming to the S tand ard Practice. Mand atory confo rman ce s established only by
reference in a code, specification, sales con tract , or pub lic law, as applicable.
Non-toleranced dimensions in this Stan dard Practice are no minal, an d, unless otherwise specified, shall be
considered “for reference only”.
Other standard s docum ents referred to,her ein are identified by the dat e of issue that w as applicable to this
standard at the date of issue of this standard. See Annex A This standard shall remain silent on the
applicability of those other stand ards of prior o r subsequent dates of issue ev en ~t ho ug h rovisions of
concern may not have changed. References contained herein which are bibliographic in natu re are noted as
‘supplemen tal’ in the text.
Any part
o
this standard may be qu oted. Credit lines should read ‘Extracted ro m M S S SP-118, 1996 with
permission
o
the publisher, the Manufacturers Standardization Society.’ Reproduction pro hibited under
copyright co nvention unless written permission is granted b y the Manufacturers Standardization Society
of
the Valve and Fittings Industry, Inc.
Copyright 0,1996 by
Manufacturers Standardization Society
of
the
Valve and Fittings Industry, Inc.
Printed in U.S.A.
i
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MSS SP-118 96
=
5770640 050û822 906
MSS
STA ND ARD PRACTICE SP-118
CONTENTS
Section Page
1 SCOPE 1
1
.
MARKING
.......................................................................
2
. DESIGN AND MATERIALS
........................................................
3.1 PRESSURE-TEM PERATUR E RATINGS ............................................
2
3.2 EN D CONNECTIONS .............................................................. 2
3.3 BODY AND BONNET
............................................................. 2
3.4 BODY-BONNET
JOINT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.5 TRIM ............................................................................ 3
3.6 DIS C/ PISTON / BALL/ COVERS .................................................... 4
3.7 STEM ............................................................................ 4
3.8 DIS C/ PISTON / BALL GUIDING .................................................... 4
3.9 SEATS ........................................................................... 4
3.10 PO RT OPEN ING
..................................................................
4
3.1 1 TH REA DE D PACKING
-
GLAND ASSEMBLY
.......................................
4
3.12 BOLTED PACK ING - GLAND ASSEMBLY
..........................................
5
3.13 PACK ING MA TER IAL ............................................................
5
3 .15 STEM NUT ....................................................................... 5
3.16 HANDWHEEL
....................................................................
5
4 EXAMINATION AND TEST ..............................................................
5
5
.1 EXAMINATION ..................................................................
4.2 PRESS URET EST 6
4.3 REPAIR O F DEFECTS ............................................................ 6
6
. SHIPM ENT
.......................................................................
5.1 END PROTECTION FOR FEMAL E THR EAD ED AND SOCKET-WELDING END S
. . . . . .
6
5.2 PROTECTION FOR END FLANGES AND BUTTWELDING ENDS
.....................
6
...........................................................................
3.14 STU FFIN G BOX .................................................................. 5
.
.................................................................
TABLE 1 RESSURE-TEM PERATUR E RATINGS FOR CLASS 800 GLOBE VALVES . . . . . 7
2
ATERIAL SPECIFICATIONS AND APPLICABLE ASTM SPECIFICATIONS 9
3 ODY AND BONNET WALL THICKNESS
10
4 OMINAL SEATING SURFACE MATERIALS ...............................
11
5
TEM MATERIAL
........................................................
12
6 INIMUM STEM DIAMETER
............. ...............................
13
7 EAT PORT OPENING .........
..........................................
13
8 INIM UM DEPTH O F PACKING
14
.
................................ . .
......
........
..........................
FIGUR E 1 YPICAL INSIDE SCREW WITH RISING STEM GLOBE VALVE
. . . . . . . . . . . . . .
15
2 YPICAL OUTSIDE SC REW WITH YOKE GLOBE VALVE
15
3 YPICAL INSIDE SCREW WITH UNION BONNET GLOBE VALVE ............ 16
4 YPICAL INSIDE SCREW WITH THRE ADE D SEAL WELD ED
16
BONNET GLOBE VALVE
..................................................
5 YPICAL PISTON CHECK VALVES ........................................ 17
6 YPICAL BALL CHECK VALVES .......................................... 17
7 YPICAL SWING CHECK VALVE .......................................... 18
8 YPICAL IN-LINE CHECK VALVE, FLANGELESS OR INSERT TYPE 19
9 YPICAL IN-LINE CHECK VALVE, THR EAD ED TYPE ...................... 19
....................
.........
ANNEX A EFERENCED STANDAR DS ....................................................
20
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I S S SP-118 9 5770b90
0500823
842
MSS STAN DAR D PRACTICE SP-118
COMPACT STEEL GLOBE CHECK VALVES FLANGED, FLANGELESS, THREADED
WELDING ENDS CHEMICAL PETROLEUM REFINERY SERVICE)
1. SCOPE(’)
I.
1 This MS S Stand ard Practice covers flanged
end, flangeless end, threaded end, socket welding
end, and butt-welding end compact steel
globe
and check valves. The term “Compact” is used
to identify the valves covered by this Standard
Practice a s reduced seat port(2) valves. Valve
sizes correspond to nominal pipe sizes listed in
AS M E/ AN SI B36.10M and B36.19M. Flanged,
flangeless, and butt weld end valves are limited
to sizes NP S 4 and smaller; threaded and socket-
welding end valves are limited to sizes NPS 2
and smaller. Valves covered under this Stan dard
Practice shall meet the requirements of ASME
B16.34, “Standard Class”. The following valves
are covered by this Standard Practice:
d) Piston, ball, spring controlled piston,
inline, or ball and swing check valves, in all
classes, bonnet designs and end connections
in a), b), and c), above.
1.2 Typical illustrations for an ISR S globe valve
and an OS Y globe valve with bolted bonnets
are presented in Figure
1
and Figure 2. Figures 3
and 4 illustrate ISRS and
OS Y
globe valves
with union an d threaded a nd seal welded bonnet
design, respectively. Figures 5 6, 7, 8, and 9
illustrate typical check valves. The illustrations
are provided to clarify certain design features.
They are not intended to require products con-
forming in any detail to the valves shown.
2. MARKING
a) Class
800
valve with threaded, socket-
welding, or butt-welding ends; a n inside screw
with rising stem (ISRS) and threaded packing
nut or an outside screw and yoke (OS Y)
with rising stem and bolted packing-gland
flange; and
a
bolted, union, welded or threaded
2.1 Valves shall be marked in accordance with
the requirements
of
ASME B16.34 and shall
include, but not be limited to the requirements
of
2.2 and 2.3.
an ds eal welded bonnet joint.
2.2 Valve bodies shall be m arked as follows:
a) Threadedend or socket-weldingend
150,300,600,800, or 1500.
b) Flanged-end o r flangeless valves 50,
300,600, or 1500.
c) Buttwelding-end valves 50, 300, 600
b) Class
1500 valve with threaded, socket-
welding, butt-welding, or flanged ends; an
OS Y
with rising stem and bolted packing-
gland flange; and a bolted, union, welded or
threaded and seal welded bonnet joint.
c) Classes 150, 300, and 600 flang ede nd ,
800, or 15OÖ.
flangeless end, threaded, socket-welding, or
buttwelding-end OS Y valves with rising stem ,
bolted packing-gland flange, threaded gland,
and a bolted, union, welded or threaded and
seal welded b onnet joint.
2.3 Each valve shall have a corrosion-resistant
metal identification plate, securely attached,
giving the following information
if
not included
on body marking (See 2.2.)
I )
This
standard is not intended for valves developed for and
predominantly used in instrument piping systems.
See
MSS
SP-99, 1994
“Instrument Valves”
or MSS
SP-105,
1996
“Instrum ent Valves for Cod e Applications”.
(*) The term “reduced port” is defined by com parison to a full
port as identified in Annex A of ASME B16.34 for the
app rop riate pressure class.
a) Manufacturer
b) Manufacturer’s model, type, figure num ber,
dwg., etc.
c) Size
d) Applicable pressure rating of
100°F
e) Body material
I) Trim
material
g) M SS SP-118 may be included
1
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MSS S P - L L B 9b m 577064Q 0500824 7 8 9
MSS
STANDARD
PRACTICE SP-118
3.
2.4 Fo r valves with welded on flange or butt-
welding stub ends, the material grade, along
with the post-weld treatment conditions, shall
be indicated on the identification plate, stamped
on the body, or both.
2.5 Th e body of the globe valve may include
a n arrow mark ing to indicate preferred direction
of flow. Check valves require
a
flow direction
arrow . This directional marking shall be integral
with the body, forged-in, cast-in, or permanently
etched or stamped on.
DESIGN AND MATERIALS
3.1 Pressure-Temperature Ratings
3.1.1 The pressure-tem perature ratings for Class
800 valves shall be as shown in Table 1. The
pressure-temperature ratings in Table 1 are an
interpolation between Standard Class 600 and
Standard Class 900 p ressure-temperature ratings
listed in ASME B16.34 for the appropriate valve
material.
3.1.2 Th e pressure-tem perature ratings for Class
150,
300,
600,
and 1500 valves shall conform to
the corresponding Standard Class pressure-
temperature ratings listed in ASME B16.34 for
the approp riate valve material.
3.2
End Connections
3.2.1 Threadedend valves shall be internally
taper-threaded as specified in AN SI/ AS ME
BI
.20.1. All internal thre ads sha ll be cou ntersunk
a
distance of approxim ately one-half the pitch of
the thread at a n angle of approximately 45 degrees
with the axis
of
the thread . C ountersinking shall
be concentric with the threads.
The
valve ends
shall meet Table
4,
B16.34 requirements for the
app ropria te pressure class.
3.2.2 Socket-welding-end preparation shall con-
form to AS M E B16.11. The bottom of the socket
shall be square and flat. The minimum wall
thickness of socke t welding end valves shall be
in accordance with requirements of Table 4,
AS M E B16.34.
3.2.3 End flanges shall conform to AS M E B16.5.
3.2.4 Flanged -end valves may have the flanges
integral with or welded to the body. T he require-
ments of Paragraph 2.1.5, ASME B16.34 shall
apply to valves with welded flanged ends.
3.2.5 Flan ged -end valves shall have face-to-face
dimensions conforming to ASM E B16.10.
3.2.6 Unless otherwise specified in the purch ase
order, the facing finish of end flanges and flange-
less end valves shall be in accordance with the
requirem ents of A SM E B16.5.
3.2.7 The end -toe nd d imensions for Classes 150,
300, 600, and
1500
buttwelding-end valves shall
conform to ASME B16.10. Buttwelding-end
valves may have stub ends integra l with or welded
to the body. W elded ends shall be welded on to
the body in accordance with the requirements of
3.2.4.
3.2.8 The end-to-end dimensions for socket-
weldingend, threaded-end valves, Class 800
buttw eldin gen d valves and flangeless valves shall
be the manufacturer’s standard.
3.2.9 Unless otherwise specified in the purchas e
order, buttwelding ends shall conform to ASM E
B16.25 for the bore specified in the purchase
order f or use without backing rings.
3.2.10 Fo r all austen itic stainless steel valves,
welded o n flange or b utt welding stub end valves
shall be solution annealed after welding unless
both the body and the flanges or butt welding
stub ends are solution annealed L (low carbon)
grades or stabilized grades of stainless steel. Pos t
weld heat treatment shall be in accordance with
Parag raph 2.1.5, AS M E B16.34.
3.3 Body and Bonnet
3.3.1 Th e valve body , bonn et, check valve covers,
and union nuts shall be made from
a
material
specified in the purchase order using one of the
product form materials listed in Table
1,
ASME
B16.34.
2
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MSS
SP-LL8 96
5 7 7 0 b 4 0 0500825
bL5
MSS STAN DAR D PRACTICE
SP-118
3.3.2 Th e minimum body wall thickness at any
point (except at end connections ee 3.2.1 and
3.2.2) shall be in accord ance with A SM E B16.34.
3.3.3 The minimum bonnet wall thickness at
any point below the bottom ring of packing shall
not be less than the values required by ASME
B16.34.
Class 800
values are given in Table 3 fo r
convenience.
3.4 Body-Bonnet Join t
3.4.1 The body-bonnet joint design shall be either
bolted, union, welded o r threaded an d seal welded.
3.4.2 The bolted body -bonnet joint design shall
have a minimum of four cap screws, studs, or
stud bo lts. Ca p screws shall be external wrenching
type.
3.4.3 Bolting material shall conform t o Table 2
except that other bolting comb inations (not listed
in Table 2) may be used by agreement between
the purchaser and the manufacturer provided
they are in accordance with AS M E B16.34.
3.4.4 Unless otherwise specified in the purchase
order, bolted and union body-bonnet joints shall
be designed to confine the gasket and prevent
overcompression.
3.4.5 The body-bonnet joint, including the
gasket, shall be suitable for the pressure-tempera-
ture rating of the valve. Any temp erature limita-
tion of the body-bonnet joint, including the
gasket, shall be shown on the identification plate.
The metallic portion of the gasket shall have a
corros ion resistance at least equal to the corrosion
resistance of the shell ma terial.
3.4.6 Wh ere the bonne t is welded to the body,
the welding, examination, and post weld heat
treatment shall be in accordance with the require-
ments of P arag rap h 2.1.5, AS ME B16.34.
3.5 Trim
surface or weld deposited body seating surface.
The valve trim for check valves shall consist of
the seating surface of the piston, ball or disc and
body seat.
3.5.2 If an overlay we lddepo sit is used for the
disc or piston seat an d /o r body seating surface,
the base material for the disc/ piston an d/ or
body seat shall have a corrosion resistance at
least equa l to the m aterial of the valve body.
3.5.3 Table 4 lists the nominal seating surface
materials categorized by trim numb ers.
3.5.4 Except as provided in Items a) throug h c)
below, the standard trim n umbe r shall
be
specified
in Table 2. When a trim other than standard is
desired, it shall be specified on the purchase
order by a trim number from Tables 4 and 5. The
typical specifications included in Tables 4 an d 5
are listed to illustrate generally accepted material
compositions and are not intended to be exact
material requirements.
a) If a specified trim n umber listed below is
required by either Table
2
or the purchase
order, the manufacturer
ma y
at his option
furnish an alternative trim num ber as follows:
Specified Alternative
Trim No. Trim No.
1
101
2
5A
105A
6
106
SA
108A
8
or 8A
108 or 18A
10
5
105
8
108
8
108
b) Wh en trim number 1, 101, 2, 3 , 4 , 104, 5,
105, 5A, 105A, 9, 10, or 13 is furnished, both
the bod y seating surface and th e disc or piston
check seating surface shall be of the material
shown in T able 4.
3.5.1 Th e valve trim fo r globe valves shall consist
of stem , disc seating surface, seat ring, seating
3
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MSS STA ND AR D PRACTICE SP-118
c) When trim num ber 6, 106, 7, 107, 8, 108,
8A, IOSA, 11,
12,
or 14 is furnished, the bod y
seating surface shall be one of the material
type listed but different than the disc or piston
check seatin g surface.
d) Nominally, the stem trim number shall
correspond to the nominal seating surface
trim number and shall be of the material type
and hardness listed in Table
5.
The stem shall
be of a wrought or cast material. At the op tion
of the valve manufacturer, the stem material
may be substituted with another material if
its corrosion resistance and strength are equal
or greater th an th at of the listed stem material.
3.5.5 Trim s not listed in Tab les 4 and
5
may be
used by agreement between the purchaser and
the manufacturer.
3.6 Disc/ Piston / Ball/ Covers
3.6.1 The disc of globe valves shall be of either
(a) flat-faced type, (b) plug type, or as specified
by pu rchase r (e.g., needle-point type).
3.6.2 Th e check mechanism of check valves shall
be either of the piston type, ball type, inline type,
or swing check type.
3.6.3 Th e covers of check valves shall be of the
bolted, welded, or union nut design.
3.6.4 Th e check mechanism of check valves shall
be designed to close by gravity when installed in
a horizontal position. Inline check valves shall
use a spring to close the check m echanism. At
the manufactuer’s option, a spring may be in-
stalled in the piston, ball or inline designs to
preload the closure mechanism. Swing check
valves may be used in vertical lines where the
normal flow is in the upw ard direction.
prevent the disc from becoming detached in
service. The stem, including the stem head , shall
be one piece. Stems formed by welding two or
more pieces are not permitted.
3.7.2 Th e stem diameter (measured at the sec-
tion that passes through the packing) shall not
be less than tha t shown in Table 6 for
Class
800
and 1500 valves. Stem sizes for Class 150, 300,
and 600 valves shall be manufacturer’s standard.
3.7.3 Th e threads of the stem and stem nut
shall be Acme type conforming to A SM E/A NS I
BI 5 or stub threads conforming to A SM E/ ANSI
B1.8 (m inor m odifications are perm itted for either
thread). The Acme thread major diameter may
be undersized by
a
maximum of
1
16 inch from
the diameter of the stem shown in Table 6.
3.7.4 The stem shall have a surface finished
Ra of 32 microinch or smoother in the area of
contact w ith the packing,
3.8 DisclP istonl Ball Guiding
3.8.1
Globe valve discs shall be accu rately guided
by a stem or body guide throughout the travel
distance to its seat. Check valve piston, balls or
discs shall be accurately guided to the seat by the
body, bo nnet, o r separate cage.
3.9 seats
3.9.1 Th e body seats shall be threaded, with or
without welded overlays, welded or brazed-in
type, or integral with the body.
3.1
O
Port Opening
3.10.1 Th e bore of the body seats for globe and
check valves shall not be less than tha t show n in
Table 7, except inline check valve bores shall be
the m anufacturer’s standard.
3.7 Stem
3.1 1 Threaded Packing-Gland Assemblv
3.7.1 Globe valve stem or disc nut shall have a
shoulder that will backseat against the bonnet
in the fully open position. Th e stem-to-disc con-
nection on globe valves shall be designed to
3.1 1.1 Th e packing-gland assembly shall include
a steel gland located under the packing nut. A
separate packing ring or washer at the base of
4
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MSS S P - 1 1 8
96
5770640 0500827 498
MSS STA NDA RD PRACTICE SP-118
the packing is permissible and shall be of
a
material whose nominal composition is equal
to valve bonnet or trim.
3.11.2 Pack ing nuts shall be made of
a
material
whose corrosion resistance is at least equal to
the bonnet.
3.12 Bolted Packing-Gland Assemblv
3.12.1 Th e packin g gland shall
be
retained by
bolting and shall be
of
the one-piece type
or
of
the two-piece self-aligning type consisting of a
gland flange and
a
gland.
3.12.2 Gland flanges shall be made of steel and
shall be provided with holes for gland bolts.
Ope n slots are n ot acceptable.
3.12.3 Gland bolts sha ll be Type 302, 304, 316,
410, 416, or 420 stainless steel in a stud-bolt,
headed bolt, or swingingeyebolt design. Gland
bolt nuts shall be hex head and shall conform to
ASTM A194, Grade 2H, or Type 302, 303, 304,
316 ,410 ,416 , o r 420 stainless steel.
3.12.4 Swin ging eyebo lts should be of either
the hinge-pin or trunnion type.
3.13
Packing Material
3.13.1 Unless otherwise specified in the purchase
order, the packing shall
be
suitable for the pressure
temperature rating of the valve within
a
design
temperature range of -20°F to 1000°F. The pack-
ing shall contain
a
corrosion inhibitor.
3.13.2 Th e minim um depth of packing material
furnished shall be as listed in Table
8
for Class
800 and 1500 valves. For Class 150 ,300, and
600
globe valves minimum depth of packing shall
be
manufacturer’s standard. Packing-gland ad-
justment length remaining after testing with the
gland tight shall be greater than 10 percent of
the minim um pack ing depth listed in Table
8.
3.14 Stuffing Box
3.14.1 Th e stuffing box finish shall be R a of
125 microinch o r smoo ther unless otherwise spe-
cified in th e pu rchase orde r.
3.15 StemNut
3.15.1 Ste m nuts of OS Y globe valves shall
be made of
a
material resistant to galling and
corrosion and have a minimum melting point
of
1750 °F. Gray cast iron is prohibited.
3.16 Handwheel
3.16.1 Han dwh eels shall be of a spoked design;
shall be made of carbon steel, ductile iron, or
malleable iron; and shall be of ample size for
easy opening and closing. Clockwise rotation of
the handwheel shall close the valve. Cast iron
or non ferrous m aterials shall not be used.
4. EXAMINATION AND TEST
4.1 Examination
4.1.1 A visual exam ination shall be performed
by the valve man ufacturer of all bodies, bonn ets,
covers, and closure elements to assure conform-
ance with m aterial specs an d AS ME B16.34.
4.1.2 All nond estructive exam inations shaìl be
performed in accordance with written procedures.
4.13 Supplementary examinations are required
only if specified in the purchase order and only
to the extent specified. Magnetic particle, radio-
graphic, liquid penetrant, and ultrasonic exami-
nation of steel forgings and castings shall be in
accordance with MSS SP-53, SP-54, SP-93, an d
SP-94 or with the purchaser’s own acceptance
criteria.
5
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PISS
S P - L L ô 76
5770640 tl500l 28
324
STANDARD PRACTICE SP-118
SS
4.2 Pressure Test
4.2.1 Each valve shall be pressure tested by
the manufacturer a s specified in MS S SP-ól and
AS M E B16.34.
4.3 Repair of Defects
4.3.1 Defects in the shell
of a
cast or forged
valve, revealed by inspection or test, shall be
repaired as permitted by the applicable material
specification or AS M E B16.34.
5
SHIPMENT
5.1 End Protection for Female Threaded and
Socket-Welding Ends
5.1.1 Except for individually packag ed valves,
the female ends of threaded and socket-welding
ends shall be protected with metal, wood, or
plastic plugs.
5.2 End Protection
of
End Flanges and Butt-
Weldinn Ends
5.2.1 End flanges and butt-welding ends shall
be covered to protect gasket surfaces, welding
ends and valve internals. Covers shall be wood
fiber, wood, plastic, or metal.
6
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MSS
MSS S P - 1 1 8 9 b
=
5770640 05[30829 260
STAN DAR D PRACTICE SP-118
TABLE
1
RESSURE-TEMPERATURE RATINGS FOR CLASS
800
GLOBE
CHECK
VALVES
Service
Temperature
(degrees) 4
F
-20 to 100
200
300
400
500
600
650
700
750
800
850
9
950
lo00
1050
1100
1150
1200
NOTES:
1.1
A 105@)
A 350-LF2
A 216-WCB@)
1975
1800
1750
1690
1595
1460
1430
1420
1345
1
100
715
460
275
140
Material Group Number (
1.2
A 350-LF3
A 352-LC2 (1
A
352-LC3 (1
2000
2000
1940
1880
1775
1615
1570
1.3
A 352-LCB
Psig
1855
1750
1700
1645
1550
1420
1395
e Table 1, ASME B16.34)
1.9
A 182-Fll(d)
A
217-WC6
(e)
Psig
2000
1900
1795
1755
1710
1615
1570
1515
1420
1355
1300
1200
1005
595
365
255
140
95
1.10
A 182-F22
d)
A 217-WC9(e)
Psig
2000
1910
1805
1730
1705
1615
1570
1515
1420
1355
I300
1200
1005
715
530
300
275
145
1.13
A 182-F5
A 182-F5a
A 2 1 7 4 3
Psig
2000
2000
1940
1880
1775
1615
1570
1515
1420
1325
1170
940
695
510
375
275
185
120
(a) For a m aterial shown in Table 1 that is acceptable
for
low
temperature service, the pressure rating for a service at
any temperature below -20F shall be no greater than the
rating shown in Table 1 for -20 F t o IOOF.
b) Permissible but not recommended for prolonged use
above about 800F.
Not to be used over 650F.
dl Permissible but not recommended for prolonged
use above about 1100F.
e) Not to
be
used over
1
100F.
0
Not t o be used over 800F.
9)
Not to be used over 850F.
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MSS S P - 1 1 8 96 =
5770640 0500830
T 8 2
MSS
STANDARD
PRACTICE
SP-118
TABLE 1 RESSURE-TEMPERATURE RATINGS FOR
CLASS
800 GLOBE
CHECK
VALVES
(continued)
Service
Temperature
(degrees)'@)
F
-20 to 100
200
300
400
500
600
650
700
750
800
850
900
950
lo00
1050
1100
1150
1200
1250
1300
1350
1
400
1450
1500
1.14
A 187-€3
A 217-Cl2
~ _ _
PSk
2000
2000
1940
1880
1775
1615
1570
1515
1420
1355
1300
1200
985
780
505
300
200
140
Material Group Number (see Table 1, AS ME B16.3
2.1
A 182-F304
A 351-CF3(t)
A 351-CF8
PSk
i920
1600
1410
1255
1165
1105
1090
1075
1060
1050
1035
1025
lo00
860
825
685
520
415
295
220
165
130
95
65
2.2
A 182-F316
A 351-CF3Mk)
A 351-CF8M
PSk
1920
1655
1495
1370
1275
1205
1185
1150
1130
1105
1080
1050
1030
970
960
860
735
550
485
365
275
200
155
110
2.3
A 182-F304L
A 182-F316L
2.5
A 182-F147H
A 351-CF8C
~~ ~ ~
Psig
1920
1695
1570
1480
1380
1310
I280
1250
1230
1215
1I85
1150
1030
970
960
860
735
460
330
250
180
140
110
95
See Notes to Table 1, preceeding page.
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MSS S P - L L B 9 =
5770b40
0500833 939 =
MSS
STA NDA RD PRACTICE SP-118
TABLE
2
YPICAL MATERIAL SPECIFICATIONS AND APPLICABLE ASTM SPE CIFICATIONS
(See Paragraph 3.3.1
and
ASME B16.34, Table 1 for Other Product Forms)
Material
Group
No.
1.1
1.2
1.3
1.9
1.10
1.13
1.14
2.1
2.2
2.3
2.5
Nominal
Designation
Steel
Carbon
2 Ni
3 Ni
Carbon
11/Cr-1/2Mo
2ViCr-lMo
5Cr-’/Mo
5Cr-1/Mo
9Cr-i Mo
18Cr-8Ni
16Cr-12Ni-2Mo
18Cr-9Ni-2Mo
. . . . . . . . . . . . . . . .
18Cr-8Ni
16Cr-12Ni-2Mo
18Cr-1ONi-Cb
Forgings
Specification
A 105 (W
A 350-LF2
..................
A 350-LF3
A 182-F11
g)
A 182-F22
A 182-F5
A 182-F5a
A
182-F9
A 182-F304@
A 182-F3 166 )
.................
A 182-F304L
A 182-F316L
A 182-F347 i)
Casting
Specification
A 216-WCBW
................
A 352-LC2
A 352-LC3
A 352-LCB
A 217-WC6(g)
A 217-WC9(g)
A 21 7-C5
g)
A 217-Ci2k)
A 35 i-CF8 i)
A 351-CF3
................
A 351-CF3M
A 35 1-CF8M
(i)
A 35 I-CF8C
(9
Standard
Trim
No.
(from Table 4)
101
101
10
10
101
108
108
108
108
2
...............
10
10
...............
10
10
Standard
Bonnet Bolting
A 193/A 194W
B7/2H
..................
B8M-CL2/8M d9e.f)
B8M-CL2/8M d*e,f)
B8M-CL2/8M(d,e?f)
B8M-CL2/8M(d,‘,f)
B16/8M
(h)
B16/8M (h)
B16/8M(h)
B16/8M(h)
B8M -CL2 /8M (e.0
B8M-CL2/8M íe,n
B8M-CL2/8M (‘A
. . . . . . . . . . . . . . . . . .
B8M-CL2/8M
B8M-CL2/ 8M e,f)
Source: This table an d the following notes are extracted
from AS ME / ANSI B16.34, Table 1,except for standard
trim and bolting columns and notes a, d, e, f and h.
Reprinted by courtesy of the American Society of
Mec hanical Engineers, 345 East 47th S treet, New Y ork,
New York 10017.
NOTES:
a)
Temperature limitations on bolting are as follows:
Gr B7, 1000F; Gr L7, 1000F; Gr B16, 1100F; Gr
B8-CI 1,1500F; Gr B8M-CL 1,1500F; G rB8-CL 2,
1000F and Gr B 8M-CL 2,1000F.
bl Upon prolonged exposures to temperatures above
800F, the carbide phase of carbon steel may be
converted to graphite.
Only killed steel shall be used above 850F.
(d )ASTMA 320, Gr L7 bolts, and AST M A 194, Gr
4
nuts are also acceptable.
e ) AS TM A 193, G r B8-CL
1
and G r B8M-CL 1 bolting
may be substituted, provided that the requirements
of 3.4 are met.
O AST M A 193, Gr B8-CL 2 bolts are
also
acceptable.
(g) Use normalized and tempered material only.
(h)A STM A 194, Gr 7 nuts are also acceptable.
6) At temperatures over 1000F, use only when the
carbon is 0.04 percent or higher.
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~ ~
~~
MSS
S P - I 1 1 8 9 W
5770640
0500832 855 W
MSS
ST AN DA RD PRACTICE SP-118
TABLE 3 ODY AND BONNET
WALL
THICKNESS
Minimum
Wall
Thickness
a)
Class
800
Valve Size
NPS
114
318
112
314
1 112
2 112
I
1 114
2
3
4
inches
0.12
0.13
O. 16
O.
19
0.22
0.23
0.24
0.28
0.33
0.38
O .47
a) See
Paragraphs
3.3.2
and
3.3.3.
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MSS STA NDA RD PRACTICE SP-118
c a s t
Trim
Number
Forged
TABLE 4 OMINAL SEATING SURF ACE MATERIALS
ASTM A 217 (CA15)
ASTM A 351
CFõ)
Nominal
Trim
ASTM A 182 (F6a)
ASTM A 182 (F304)
ASTM A 182 (F310)
F6
304
F310
Hard F6
Hardfaced
Hardfaced
F6 and
Cu-Ni
F6 and
Hard F6
F6 and
Hardfaced
F6 and
Hardfaced
Monel
316
Monel and
Hardfaced
316 and
Hardfaced
Alloy 20
Alloy 20 and
Hardfaced
ASTM A 217 (CA15)
ASTM A 217 (CA15)
ASTM A 217 (CA15)
ASTM A 217 (CA15)
ASTM A 351 (CF8M)
ASTM A 351 (CF8M)
ASTM A 351 (CN7M)
ASTM A 351 (CN7M)
seat
lardness
a)
(HB M in.)
ASTM A 182 (F6a)
ASTM A 182 (F6a)
ASTM A 182 (F6a)
ASTM A 182 (F6a)
Mfg.’s standard
ASTM
A
182 (F31 6)
Mfg.3 standard
ASTM A 182 (F316)
ASTM B
473
ASTM
B
473
(i)
h)
Material
Type
13Cr
18Cr-8Ni
25Cr-20Ni
Hard 13Cr
Co Cr-A(g)
Ni-Cr
13Cr
Cu-Ni
13Cr
Hard 13Cr
13Cr
Co
Cr-A(g)
13Cr
Ni-Cr
Ni-Cu alloy
18Cr-8Ni
Ni-Cu alloy
Trim 5 or 5A
18Cr-8Ni
Trim
5
or 5A
19Cr-29Ni
19Cr-29Ni
Trim
5
or SA
Typical Specification (Grade )
NOTES:
ta)
HB is Brinell hardness number sym bol per
ASTM
E
10 (formerly B“).
(b)Tr ims101, 104,
105,
105A, 106, 107, 108 and 108A
denote trims that permit the use of free-machining
grades of
13
percent C r material. Specify Trims
1,4,
5,5A,
, 7 , 8
and 8A when the use of free-machining
grades of 13 percent Cr materials is not desired.
c ) Sea t ring an d discl piston / swing check se at surfaces
250
HB minimum , with 50 HB minimum differential
between seat ring and disc/piston/ swing check seat
surfaces.
(dl Manufacturer’s standard hardness.
Welded
AWS A5.9 ER410
AWS A5.9 ER308
AWS A5.9 ER310
AWS A5.13 ERCoCr-A
0’
AWS A5.9 ER410
AWS A5.9 ER410
AW S A5.9 ER410
AWS A5.13 ERCoCr-A
AW S A5.9 Er410
0’
AWS A5.9 ER316
See Trim
5
or 5A
AWS A5.9 ER316
See Trim 5 o r SA
AWS A5.9 ER320
AWS A5.9 ER320
See Trim 5 or SA
e) Differential hardness between seat ring and disc/
piston/ swing check seat surfaces not required.
9 Hardness differential between body seat ring and
disc/ piston/ swing check seat surfaces shall be the
manufacturer’s standard.
E)
This classification includes such trademarked ma-
terial as Stellite
6 ,
Stoody
6
and Waliex
6.
(h) Case hardened by nitriding to thickness of 0.005
inch minimum.
(9 Manufacturer’s standard, with 30 percent N i
minimum.
fi Manufacturer’s standard hardfacing, with 25 percent
Fe maximum.
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~
MSS SP-IL8 96 5770640 0500834 628
MSS STANDARD
PRACTICE SP-118
Trim
Number (Note)
1
101
2
3
4 through 8A
104
105
105A
106
107
108
108A
9 and 11
10an d 12
13 and 14
TABLE
5
TEM MATERIAL
Material
Type
13Cr
13Cr
18Cr-8Ni
25Cr-2ONi
13Cr
13Cr
Ni-Cu alloy
18Cr-8Ni
19Cr-29Ni
Hardness
íHB)
200
200
Manufacturer’s
standard
Manufacturer’s
standard
200
200
Manufacturer’s
standard
Manufacturer’s
standard
Manufacturer’s
standard
Typical
Specification
(TYP4
ASTM A 276-T410 or T420
AST M A 276-T410 or T420
ASTM
A
582-T416
ASTM A 276-T304
AST M A 276-T310
ASTM A 276-T410 or T420
ASTM A 276-T410
or
T420
ASTM A 582-T416
Manufacturer’s
standard
ASTM A 276-T316
ASTM €3 473
Note:
Trims 1
and
4
through
8A
denote
trims
that prohibit free-machinhg grades of
13
percent
Cr
material.
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~
_ _ ~
~~
I S S
S P - L L B
96 5770b40 0500835 5 b 4
MSS STA NDA RD PRACTICE SP-118
TABLE 6 INIMUM STEM DIAMET ER(a)
Valve Size
NPS
Class
800
inches
9 /32
9 /
32
11/32
7/ 16
9/ 16
11/16
31
8
518
718
112
314
Class 1500
inches
13/32
13/32
131 32
7/ 16
9/ 16
518
518
21 32
314
1
1
118
(a) See Parag raph 3.7.2. A finish machining tolerance of 0.005” is perm itted.
TABLE 7 ALVE SEAT POR T OPENING
Valve Size
NPS
114
318
112
314
1
1
114
1 112
2
2 112
3
4
Minimum Seat Bore a)
class
800
inches
114
114
318
112
11/16
151
16
1
118
1 7/16
1
314
2
2
314
Class 1500
inches
114
114
318
518
71
8
112
1
1/16
1 318
1 718
1 112
2 112
a) In-line check valves minimum bore diam eters shall be m anufacturer’s standard
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~~ ~~~~ ~~
~
MSS S P - 1 1 8
9
5770640 0500836 4 T O
MSS STA NDA RD PRACTICE SP-118
TABLE 8 INIMUM
DEPTH OF
PACKING
a)
114
31
8
112
314
1
1 114
1 112
2
2
112
3
4
Class
800
Outside Screw and
Yoke Valves
inches
112
112
518
518
1
1
1
118
1 118
1 114
1 314
1
112
~
Inside Screw w ith
Rising Stem Valves
inches
Class
1500
Outside Screw and
Yoke Valves
inches
7 /
8
718
718
1
1 3/16
1 1 /2
1 112
1 112
1 314
1
718
2
(a)See Paragraph
3.13.2.
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~ ~
MSS S P - 1 1 8 9 b 5 7 7 0 6 4 0 0 5 0 0 8 3 7 3 3 7
MSS STAN DAR D PRACTICE SP-118
1.
2.
3.
4.
5
6.
7.
8.
9.
10.
11.
12.
13.
14.
PART NAMES
Handwheel Nut
Han d wheel
Identification Plate
Stem
Packing Nut
Gland
Packing
Packing R ing (when used)
Bonnet
Bonnet B olting
Gasket
Disc Nut
Disc
Body
FIGURE 1
TYPICAL INSIDE SCREW
WITH
RISING
STEM (ISRS) GLOBE VALVE
PART NAMES
1.
2.
3.
4.
5
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
Handwheel Nut
Handwheel
Identification Plate
Stem
Stem Nut
Yoke
Gland Bolting
Gland
Packing
Bonnet Bolting
Bonnet
Gasket
Disc Nut
Disc
Body
FIGURE 2
TYPICAL OUTSIDE SCREW A ND YOKE
(OS Y) GLOBE VALVE
15
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~
~
PISS
S P - 1 1 8
96 5770640 0500838
273
m
MSS
STA NDA RD PRACTICE
SP-118
1.
2.
3.
4.
5
6.
7.
8.
9.
10.
11.
12.
13.
14.
PART NAM ES
Handwheel Nut
Identification Plate
Handwheel
Stem
Gland
Packing Nut
Packing
Packing Ring (when used)
Bonnet
Gasket
Bonnet Nut
Disc Nut
Disc
Body
FIGURE 3
TYPICAL UNION BONNET INSIDE SCREW
(ISRS) GLOBE VALVE
PART NAM ES
1. Handwheel Nut
2. Identifica tion Plate
3. Handwheel
4. Stem
5.
StemNut
6. Yoke
7.
Gland B olting
8.
Gland
9. Packing
10. Bonnet
11. Disc Nu t
12. Disc
13. Body
FIGURE 4
TYPICAL SEAL WELD BONNET OUTSIDE
SCREW AND YOKE (OS&Y) GLOBE VALVE
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~~ ~
~
MSS
S P - 1 1 8 96
5770640 0500839
L O T
MSS STA ND AR D PRACTICE SP-118
/
PART NAMES
1. Identification Plate
2.
Bonnet B olting
3.
Bonnet/ Cover
4. Gasket
5 Piston
6. Body
FIGURE 5
TYPICAL PISTON CHECK VALVE
PART NAM ES
1 Identification Plate
2.
Bonnet B olting
3. Bonnet/ Cover
4. Alignment Pin
5. Gasket
6. Ball
7. Body
FIGURE
6
TYPICAL BALL CHECK VALVE
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MSS STA ND ARD PRACTICE
SP-118
PART NAM ES
1. Fastener
2. Identification Plate
3. Bonnet B olting
4.
Gasket
5.
Hinge
6. Bonnet/ Cover
7. Disc
8. Hinge Pin
9. Seat Ring
10. DiscNut
11. Body
12. Alignment Pin
FIGURE
7
TYPICAL SWING CHECK VALVE
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~~
MSS S P - 1 1 8
96 5778640 050084L
868
MSS STA ND AR D PRACTICE SP-118
FLOW
PART NAMES
1 Yoke
2.
Spring
3 .
Body
4.
Cap (Disc)
FIGURE 8
TYPICAL IN-LINE CHECK VALVE
FLANGELESS OR INSERT TYPE
FLOW
PART NAMES
1
Yoke
2. Spring
3 . Cap (Disc)
4.
Body
FIGURE
9
TYPICAL IN-LINE CHECK VA LVE
THREADED TYPE
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MSS
~~~
~ ~~~
f l SS S P - 1 1 8 ï b 5770b40 0500842
7 T 4
SP-118
TAND ARD PRACTICE
ANNEX A
REFERENCED STANDA RDS
This A nnex is a n integral par t of this Standard Practice which is placed after the main text f or convenience.
List of stand ards an d specifications referenced in this Stand ard Practice show the year of approv al.
ANSI, ANSI/ ASME, ASME / ANSI, ASME
B1.5 (R 1994)
B1.8 (R 1994)
B1.20.1 ( R 1992)
B16.5-1988
B 16.1
O
1992
B16.11-1991
B16.25-1992
B16.34-1988
B31.3-1996
B36.10M- 1995
B36.19M-1985
ASTM
A 1 05/ A 105M-95b
A 182 /A 182M-95b
A 193 /A 193M-95
A 194 /A 194M-95
A 216 /A 216M-93
A 217/A 217M-93
A 276-96
A 320/ A 320M-94a
A 350/ A 350M-95b
A 3 51/ A 351M-94a
A 352/ A 352M-93
A 5821 A 582M-93
B 473-95
E 10-93
AWS
A5.9-93
A5.13-80
Acme Screw Threads
Stu b Acme Screw Threads
Pipe Threads, G eneral Purpose (inch)
Flanges and Flanged Fittings
Face-to-Face and End-to-End Dim ensions of F errous Valves-
Forged Steel Fittings, Socket-Welding and T hreaded
Butt-welding Ends
Valves langed, Threaded, and Welding-End
Chemical Plant and Petroleum Refinery Piping
Welded and Seamless Wrought Steel Pipe
Stainless Steel Pipe
Forgings, Carbon Steel, for Piping Components
Forged or Rolled Alloy Steel Pipe Flanges, Forged Fittings and Valves and Parts for
High-Tem perature Service
Alloy-Steel and Stainless Steel Bolting Materials for High-Tem perature Service
Carb on an d Alloy Steel Nuts for Bolts for High-pressure and High-Temperature Service
Carbon-S teel Castings Suitable for Fusion W elding for High-Te mperature Service
Martensitic Stainless Steel and Alloy Steel Castings for Pressure-Containing Parts
Suitable for High -Temp erature Service
Stainless and Heat-Resisting Steel Bars and Shapes
Alloy-Steel Bolting Materials for Low -Tem perature Service
Carbon and Low-Alloy Steel Forgings Requiring Notch Toughness Testing for Piping
Components
Austenitic Steel Castings for H igh-Tem perature Service
Femtic and Martensitic Steel Castings for Pressure-Containing Parts Suitable for
Low -Tem perature Service
Free-M achining Stainless and Heat-Resisting Steel Bars, H ot-Roiled or Cold-Finished
Chromium-Nickel-Iron-Molybdenum-Copper-Columbium
tabilized Alloy
(UN S N08020) Bar and W ire
Test Method for Brinell Hardness of Metallic Materials
Corrosion-Resisting Chromium and Chromium-Nickel Steel Bare and Composite
Metal Cored an d Stranded Welding Electrodes and W elding Rod s
Solid Surfacing Welding Rods an d Electrodes
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MSS STA NDA RD PRACTICE SP-118
MSS
SP-53-1995
SP-54-1995
SP-55-1996
SP-61-1992
SP-93-1987 (R 1992)
SP-94-1992
Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and
Other Piping Com ponents agnetic Particle Exam ination Me thod
Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping
Com ponents adiographic Examination Metho d
Quality Standard for Steel Castings
for
Valves, Flanges and Fittings and Other Piping
Com ponents isual Metho d
Pressure Testing
of
Stee l Valves
Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and
Other Piping Com ponents iquid Penetrant Examination Metho d
Quality Standard for F erritic and Martensitic Steel Castings for Valves, Flanges, and
Fittings and Other Piping Com ponen ts ltrasonic Exam ination Metho d
21
and FittingsYRIGHT Manufacturers Standardization Society of the Valve and Fittingsensed by Information Handling Services
7/21/2019 MSS-SP-118 (1996)
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MSS S P - L L B
96 5770648
0500844
577
=
LIST
OF
MSS STANDARD PRACTICES
NUMBER
SP- 6-1996
SP- 9-1992
SP-25-1993
SP-42-1990 R 1995)
SP-43-1991 (R 1996)
SP-44-1996
SP4-1992
SP-51-1991
(R
1995)
SP-53-1995
SP-54-1995
SP-55-1996
SP-58-1993
SP-60-1991
SP-61-1992
SP-65-1994
SP-67-1995
SP-68-1988
SP-69-1991
SP-70-1990
SP-71-1990
SP-72-1992
SP-73-1991
SP-75-1993
SP-77-1995
SP-78-1987
(R
1992)
SP-79-1992
SP-80-1987
SP-81-1995
SP-82-1992
SP-83-1995
SP-85-1994
SP-86-1987
(R
1992)
SP-87-1991
(R
1996)
s p a - 1993
SP-89-1991
SP-90-1986 R 1991)
SP-91-1992 (R 1996)
SP-92-1987 (R 1992)
SP-93-1987 R 1992)
SP-94-1992
SP-95-1986
(R
1991)
SP-96-1996
SP-97-1995
SP-98-1996
SP-99-1994
SP-100-1988
SP-101-1989
SP-102-1989
SP-103-1995
SP-104-1995
SP-105-1996
SP-106-1990
R
1996)
SP-107-1991
SP-108-1996
SP-109-1991
SP-110-1996
SP-111-1996
SP-112-1993
SP-113-1994
SP-114-1995
SP-115-1995
SP-116-1996
SP-117-1996
SP-118-1996
Standard Finishes or Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings
Spot Facing for Bronze, Iron and Steel Flanges
Standard Marking System for Valves, Fittings, Flanges and Unions
Class 150 Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Ends
Wrought Stainless Steel Butt-welding Fittings
Steel Pipeline Flanges
Bypass and Drain Connections
Class 150 LW Corrosion Resistant Cast Flanges and Flanged Fittings
Quality Standard for Steel Castings and Forgings or Valves, Flanges, and Fitt ings and Other Piping Components
Quality Standard for Steel Castings for Valves, Flanges, and Fittings and Other Piping Components adiographic
Quality Standard for Steel Castings or Valves, Flanges and Fittings and Other Piping Components isual Method
Pipe Hangers and Supports Materials, Design and Manufacture
Connecting Flange Joint Between Tapping Sleeves and Tapping Valves
Pressure Testing of Steel Valves
High Pressure Chemical Industry Flanges and Threaded Stubs for Use with Lens Gaskets
Butterfly Valves
High Pressure-OffsetSeat Butterfly Valves
Pipe Hangers and Supports election and Application
Cast Iron Gate Valves, Flanged and Threaded Ends
Cast Iron Swing Check Valves, Flanged and Threaded Ends
Ball Valves with Flanged or Butt-welding Ends for General Service
Brazing Joints for Wrought and Cast Copper Alloy Solder Joint Pressure Fittings
Specifications or High Test Wrought Butt Welding Fittings
Guidelines or Pipe Support Contractual Relationships
Cast Iron Plug Valves, Flanged and Threaded Ends
Socket-Welding Reducer Inserts
Bronze Gate, Globe, Angle and Check Valves
Stainless Steel, Bonnetless, Flanged Knife Gate Valves
Valve Pressure Testing Methods
Class
3000
Steel Pipe Unions, Socket-Welding and Threaded
Cast Iron Globe Angle Valves, Flanged and Threaded Ends
Guidelines for Metric Data in Standards for Valves, Flanges, Fittings and Actuators
Factory-Made Butt-welding Fittings for Class
I
Nuclear Piping Applications
Diaphragm Type Valves
Pipe Hangers and Supports
-
abrication and Installation Practices
Guidelines on Terminology for Pipe Hangers and Supports
Guidelines for Manual Operationof Valves
MSS Valve User Guide
Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and Other Piping Components
Liquid Penetrant Examination Method
Quality Standard for Ferritic and Martensitic Steel Castings for Valves, Flanges, and Fittings and Other Piping
Components ltrasonic Examination Method
Swage(d) Nipples and Bull Plugs
Guidelines on Terminology for Valves and Fittings
Integrally Reinforced Forged Branch Outlet Fittings ocket Welding, Threaded and Buttwelding Ends
Protective Coatings for the Interior of Valves, Hydrants, and Fittings
Instrument Valves
Qualification Requirements or Elastomer Diaphragms for Nuclear Service Diaphragm Type Valves
Part-Turn Valve Actuator Attachment lange and Driving Component Dimensions and Performance Characteristics
Multi-Turn Valve Actuator Attachment- lange and Driving Component Dimensionsand Performance Characteristics
Wrought Copper and Copper Alloy Insert Fittings for Polybutylene Systems
Wrought Copper Solder Joint Pressure Fittings
Instrument Valves for Code Applications
Cast Copper Alloy Flanges and Flanged Fittings, Class 125, 150 and 300
Transition Union Fittings for Joining Metal and Plastic Products
Resilient-Seated Cast Iron-Eccentric Plug Valves
Welded Fabricated Copper Solder Joint Pressure Fittings
Ball Valves Threaded, Socket-Welding, Solder Joint, Grooved and Flared Ends
Gray-Iron and Duct ile lron Tapping Sleeves
Quality Standard for Evaluation of Cast Surface Finishes
-
isual and Tactile Method. This SP must be sold with a
Connecting Joint between Tapping Machines and Tapping Valves
Corrosion Resistant Pipe Fittings, Threaded and Socket Welding, Class 150 and 1000
Excess Flow Valves for Natural Gas Service
Service Line Valves and Fittings for Drinking Water Systems
Bellows Seals for Globe and Gate Valves
Compact Steel Globe Check Valves langed, Flangeless, Threaded Welding Ends (Chemical PetrOkum
Refinery Service)
Magnetic Particle Examination Methcd
Examination Method
for Evaluation of Surface Irreqularit ies
10-surface, threedimensional Cast Surface Comparator, which is a necessary part of the Standard. Additional
comparators may be sold separately.
R-Year
- ndcaies year sîandad
mallinned
without substantive change.
A
large
number
01
tonner
MSS Practices
have been approved by the ANSI or ANSI Standards, published by others. In order
to
maintain a single source 01 authoritative
infomation, theMSSwlth nm
I t s
Siandad Practices n such
cases
Prlces availableupo requer