Pipeline ancillaries Bellows sealed stop valves
10
Materials
15
14
13
16 17 9 3 10 18
12 11
8
2
7
6
5 4
1
No.
Part
Material
1 2 3 4
Body
Forged steel
ASTM A105N
Bonnet
Forged steel
ASTM A105N
7.1.4
Gland flange
Forged steel
ASTM A105
Integral seat
Stellite
Gr. 6
A3S
Stainless steel
ASTM A276 Type 410
5
Disc
A3SS Stainless steel
ASTM A276 Type 410 + stellite Gr. 6
6 7 8 9
Bellows
Stainless steel
ASTM A479 Type 321
Gaskets
Spirally wound stainless steel and graphite filler/graphite laminate with stainless steel insert.
Body bolts
Carbon steel
ASTM A193 B7
10.1 3
Gland nuts
Carbon steel
ASTM A194 2H
10
Gland studs
Stainless steel
AISI 410
11
Stem packing
Graphite
12 13 14 15 16
Gland follower
Stainless steel
ASTM A276 Type 410
Handwheel
Carbon steel
Wheel nut
Carbon steel
Name-plate
Stainless steel
Stem
Stainless steel
ASTM A276 Type 410
17
Yoke nut
Stainless steel
ASTM A582 Type 410
18
Grease nipple
Carbon steel
TI-P132-09 CMGT Issue 8
Page 3 of 5
A3S and A3SS Bellows Sealed Stop Valve
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