Direct Spring Operated spence Safety Valve back pressure, safety relief valve manufacturers
| Name: | Direct Spring Operated spence Safety Valve back pressure, safety relief valve manufacturers |
| Design confirms: | GB12243/API526 |
| Flanges drilled confirms: | BS EN1092/ANSI B16.5 |
| Tightness check: | API 598/ISO 5208/EN12226-1 |
| Face-to-face conform: | ANSI B16.11,JB/T1751 |
| Normal pressure: | 1.6MPa |
| Shell test pressure: | 2.4Mpa |
| Seal test prressure: | 1.76Mpa |
| Suitable medium: | water,steam |
| Working temperature: | -20~+425°C |
| BODY: | WCB |
| DISC: | WCB |
| STEM: | 2CR13 |
| GLAND FLANGE: | WCB |
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