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Product Features
Small size and low installation space requirements;
Close quickly and move sensitively;
Spring-loaded valve discs with guaranteed closure;
Optional soft seal design;
Pin shaft with built-in structure, no external leakage points.
Technical Parameters
Technical Parameters
Nominal Size | 2"~40"(DN50-DN1000) |
---|---|
Nominal Pressure | ASME 150 to 1500LB |
Applicable Temperature | -196℃~800℃ |
Body Material | WCB, CF8, CF8M, CF3, CF3M, LCB, 2205 Etc. |
Design Standard | API 6D, API 594, BS1868, ASME B16.34 |
Pressure-Temperature Rating | ANSI B16.34 |
Face To Face | ANSI B16.10 |
End Connection | Flanged Ends to ASME B16.5, Butt-weld Ends to ASME B16.25 |
Inspection And Test | API 598 |
Mark | MSS SP-25 |
Material List
NO. | Parts name | Standard material | Low temperature environment | Stainless steel material | Hign temperature environment | Acidic environment |
---|---|---|---|---|---|---|
1 | Body | ASTM A216-WCB+STL.6 | ASTM A351-CF8M+STL.6 | ASTM A352-LCC+STL.6 | ASTM A217-WC9+STL.6 | ASTM A216-WCB+STL.6 |
2 | Clack | ASTM A216-WCB+Cr13 | ASTM A351-CF8M | ASTM A352-LCC+316 | ASTM A217-WC9+STL.6 | ASTM A216-WCB+Cr13(NACE) |
3 | Pin | ASTM A276-410 | ASTM A276-316 | ASTM A276-316 | ASTM A276-410 | ASTM A276-410(NACE) |
4 | Spring | Inconel X-750 | Inconel X-750 | Inconel X-750 | Inconel X-750 | Inconel X-750 |
5 | Spring seat | ASTM A182-F6a | ASTM A182-F316 | ASTM A182-F316 | ASTM A182-F6a | ASTM A182-F6a(NACE) |
6 | Spacer ring | ASTM A182-F6a | ASTM A182-F316 | ASTM A182-F316 | ASTM A182-F6a | ASTM A182-F6a(NACE) |
7 | Lifting lug | Carbon steel | Carbon steel | Carbon steel | Carbon steel | Carbon steel |