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| Categories | Cast Steel Check Valves | 
|---|---|
| Place of Origin: | China | 
| Brand Name: | Youwei Fluid | 
| Certification: | Quality system certificate | 
| MOQ: | 1 | 
| Company Info. | 
| SuZhou YouWei Fluid Technology CO., LTD | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
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  | 
                                 
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