Applicable Standards
★Steel Check Valves, API 594/API 6D
★Steel Check VALVES, ISO 14313
★Steel Valves, ASME B16.34
★Face To Face, ASME B16.10
★End Flanges, ASME B16.5
★Inspection And Test, API 598/API 6D
Design Description
▲PSB, Pressure Seal Bonnet
▲Swing Type
▲Renewable Seat Rings
▲Von-penetrate Disc Shaft
▲Flanged Or Buttwelding Ends
Standard Material Specifiactions
| No. |
Part Name |
ASTM Material |
| Carbon Steel |
1.25Cr-0.5Mo |
2.25Cr-1Mo |
304
Type |
316 Type |
304L Type |
316L
Type |
20 Alloy |
| 1 |
Body |
A216
WCB |
A217
WC6 |
A217 WC9 |
A351CF8 |
A351 CF8M |
A351
CF3 |
A351 CF3M |
A351
CN7M |
| 2 |
Bonnet |
A216
WCB |
A217
WC6 |
A217 WC9 |
A351
CF8 |
A351 CF8M |
A351
CF3 |
A351
CF3M |
A351
CN7M |
| 3 |
Disc |
WCB+13Cr*1 |
A217 WC6+HF |
A217
WC9+H F |
A351CF8 |
A351 CF8M |
A351CF3 |
A351 CF3M |
A351CN7M |
| 4 |
Hinge |
A216 WCB |
A217WC6 |
A217 WC9 |
A351CF8 |
A351 CF8M |
A351CF3 |
A351CF3M |
A351CN7M |
| 5 |
Seat Ring |
A105+13Cr*1 |
A182 F11+HF |
A182 F22+HF |
NA |
NA |
NA |
NA |
NA |
| 6 |
Hinge Pin |
A276 410 |
A276 410 |
A276 410 |
A276 304 |
A276 316 |
A276 304L |
A276 316L |
20-Alloy |
| 7 |
Bonnet Gasket |
304+
Graphite |
304+
Graphite |
304+
Graphite |
304+
Graphite |
316+
Graphite |
304L+
Graphite |
316L+
Graphite |
316+
Graphite |
| 8 |
Adapter Ring |
Soft steel |
A182F6a |
A182 F6a |
A182F304 |
A182 F316 |
A182 F304L |
A182 F316L |
20-Alloy |
| 9 |
Retainer |
A182 F6a |
A182 F6a |
A182 F6a |
A182 F304 |
A182 F304 |
A182 F304 |
A182 F304 |
A182
F304 |
| 10 |
Bonnet Clamp |
A216 WCB |
A217WC6 |
A217 WC9 |
A351
CF8 |
A351 CF8 |
A351
CF8 |
A351
CF8 |
A351
CF8 |
| 11 |
Bonnet Bolt |
A193 B7 |
A193 B7 |
A193 B16 |
A193 B8 |
A193 B8 |
A193 B8 |
A193 B8 |
A193 B8 |
| 12 |
Bonnet Nut |
A194 2H |
A194 7 |
A194 7 |
A194 8 |
A194 8 |
A194 8 |
A194 8 |
A194 8 |
| 13 |
Eyebolt |
Carbon steel |
Carbon steel |
Carbon steel |
Carbon steel+Zn |
Carbon steel+Zn |
Carbon steel+Zn |
Carbon steel+Zn |
Carbon steel+Zn |
| NA |
Integral with vessell |
| *1 |
PN≥600 Class seal face will be HF |
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