Lift forged steel check is widely used for pipeline of petroleum, chemical engineering and other industries. The check valve is mainly made of forged steel, also can adopt other materials to meet the requirements of customers.
Dimensions & Weights
| Specifications |
S |
L |
T |
H ≈ |
Weights(㎏)≈ |
| British System |
Metric System |
JNSI |
JIS |
ANSI |
ISO、BS |
JIS |
900~1500Lb |
| NPI 60 |
RC 55 |
PT 55 |
| 1/2 |
15 |
21.8 |
22.2 |
79 |
1/2 |
61 |
1.4 |
| 3/4 |
20 |
27.1 |
27.7 |
92 |
3/4 |
65 |
1.5 |
| 1 |
25 |
33.8 |
34.5 |
111 |
1 |
79 |
3.1 |
| 1 1/4 |
32 |
42.6 |
43.2 |
120 |
1 1/4 |
95 |
3.9 |
| 1 1/2 |
40 |
48.7 |
49.1 |
152 |
1 1/2 |
103 |
5.6 |
| 2 |
50 |
61.1 |
61.1 |
172 |
2 |
118 |
8.9 |
Materials
| No. |
Components |
CS to ASTM |
AS to ASTM |
SS to ASTM |
| |
|
Type A105N |
Type F22 |
Type F304(L) |
Type F316(L) |
| 1 |
Valve Body |
A105N |
A182 F22 |
A182 F304(L) |
A182 F316(L) |
| 2 |
Lift Valve Disc |
A276 420 |
A276 304 |
A276 304(L) |
A276 316(L) |
| 3 |
gasket |
304 +flexible graphite |
316 +PTFE |
| 4 |
Bonnet |
A105N |
A182 F22 |
A182 F304(L) |
A182 F316(L) |
| 5 |
Name Plate |
SS |
| 6 |
Bolt |
A193 B7 |
A193 B16 |
A193 B8 |
A193 B8M |
| Suitable Medium |
Water, vapour, oil, etc. |
Water, vapour, oil, etc. |
Nitric acid, acetic acid, etc. |
| Suitable Temperature |
-29℃-425℃ |
-29℃-550℃ |
-29℃-200℃ |
|
|
|
|
|
Notes:We can also supply other valve material as required. The seal ring material is depends on the trim NO. required by customers. CS=carbon steel; AS=alloy steel; SS=stainless steel