Cast Steel and Stainless Steel Ball Valve
API Floating Ball Valve
Main parts and materials:
Parts name | material | ||||
Body、Bonnet | A216WCB | A352 LCB; A217 WC6; A217 WC9; A217 WC5; A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M |
Stem | A182 F6 | A182 F304 | A182 F316 | A182 F304L | A182 F316L |
Ball | A182 F6 | A182 F304 | A182 F316 | A182 F304L | A182 F316L |
Standards
Test item | Face to face | Flange end | Inspection | Air seal test |
Bs5351; ANSI B16.34 | ANSI B16.10 | ANSI B16.5 | API 598 | ANSI B16.34 |
Test pressure
Test item | Shell test | Seal test | Back seal test | Air seal test | |
Medium(MPa) | water(MPa) | Air (MPa) | |||
Pressure (class) | 150 | 3.1 | 2.2 | 2.2 | 0.5~0.7 |
300 | 7.8 | 5.6 | 5.6 | ||
600 | 15.3 | 11.2 | 11.2 | ||
900 | 23.1 | 16.8 | 16.8 | ||
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