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Forged steel cryogenic valve (bolted bonnet)

List of standard materials

No.
Part name
AStoASTM
SStoASTM
LF2
LF3
F304 (L)
F316 (L)
1
Body
A350LF2
A350LF3
A182F304 (L)
A182F316 (L)
2
Seat
A276420
A276410
A276304 (L)
A276316 (L)
3
Gate
A350LF2
A350LF3
A182F304 (L)
A182F316 (L)
4
Gasket
316 clip flexible graphite
316 clip PTFE
5
Bonnet
A350LF2
A350LF3
A182F304 (L)
A182F316 (L)
6
Bolt
A193B7
A193B7
A193B8
A193B8M
7
Stem
A182F6
A182F6
A182F304 (L)
A182F316 (L)
8
Packing
Flexible graphite
PTFE
9
Pin
A276420
A276 304
10
Eyelet bolt
A193B7
A193B16
A193B8
A193B8M
11
Gland
A276410
A182F304 (L)
A182F316 (L)
12
Filler plate
A105
A182F11
A182F304 (L)
A182F316 (L)
13
Screw nut
A1942H
A1944
A1948
A1948M
14
Stem nut
A276420
15
Lubricated gasket
A473431
16
Nameplate
SS
17
Locking nut
A1942H
A1944
A1948
A1948M
18
Handwheel
A197
Temperature
≥ -40 ℃
≥ -101 ℃
≥ -196 ℃

Note: Other materials required by customers may also be adopted. Matching of materials used on the sealing surface shall be determined in accordance with the inner part code designated by customers.

CS=carbon steel; AS=alloy steel; SS=stainless steel

Dimension (mm) and weight (kg)

NPS
3/8 "
1/2 "
3/4 "
1 "
11/4 "
11/2 "
2 "
L
79
92
111
120
120
140
178
H (open)
330
333
360
407
475
475
551
W
100
100
125
160
160
180
200
Weight
Bolted
5.2
7.1
9.4
13.5
15.0
17.8
28.0
Welding
4.8
6.4
8.7
12.2
13.4
15.2
26.0

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