API Flanged Swing Check Valve
Standards
Design and manufacture as BS1868,ANSIB1634
Fane to face dimensions as ANSIB16.10
Pressure-temperature rating as ANSI B16.34
Pressure test as API598
Test Pressure
| Test Item | Shell Test | Seal Test | Back Seal Test | Air Seal Test | |||||||||||||
| Medium | Water | Air | |||||||||||||||
| Unit | MPa | Ibf/in² | MPa | Ibf/in² | MPa | Ibf/in² | MPa | Ibf/in² | |||||||||
|
| 150 | 3.1 | 450 | 2.2 | 315 | 2.2 | 315 | 0.5~0.7 | 60~100 | ||||||||
| 300 | 7.8 | 1125 | 5.6 | 815 | 5.6 | 815 | |||||||||||
| 400 | 10.3 | 1500 | 7.6 | 1100 | 7.6 | 1100 | |||||||||||
| 600 | 15.3 | 2225 | 11.2 | 1630 | 11.2 | 1630 | |||||||||||
| 900 | 23.1 | 3350 | 16.8 | 2440 | 16.8 | 2440 | |||||||||||
Materials for Main Parts
| Name | Material | ||||||||||||||||
| Body Bonnet Wedge Arm Yoke | A216 WCB | A352 LCB | A217 WC6 | A217 WC9 | A217 C5 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M | ||||||||
| Arm Pin | A182 F6 | A182 F304 | A182 F316 | A182 F304L | A182 F316L | ||||||||||||
| Bonnet Bolt | A193-B7 A320-L7 A193-B8 | ||||||||||||||||
| Nut | A194-2H A194-7 A194-8 | ||||||||||||||||