Butt-weld Swing Check Valve
1、The sealing faces of valve seat and valve clack are build-up welded with hard alloy to improve the erosion resistance and extend the service life of valve.
2、SS+ graphite or metallic seal or pressure self-sealing is adopted between valve body and bonnet for reliable sealing.
3、Suitable for medium backflow prevention in pipeline or device
4、Large check valves are designed with hydraulic damping cylinder to prevent the valve clack from bumping the valve seat, damaging the valve or causing pipeline vibration due to fast closing.
5、In case of pigging requirement, API 6D swing check valve can be manually operated to fix the opening position of valve clack, so as to achieve the pigging objective.
1. Certification: ISO9001, API600, CE, TS
2. Size: 2″-32″
3. Pressure: Class 150LB-1500LB
4. Material: Carbon Steel/Stainless Steel
5. Brand Name: Gangye Valve or OEM
6. Guarantee: 18months
7. Suitable medium: water, oil, gas….
Design and Manufacture: API600 ,ASME B 16.34, API6D, BS5351
Inspection and Test: API598
End flange dimension: ASME B16.5 (for NPS≤24); AMSE B16.47 series B
Socket-weld dimension: ASME B16.11
Face to face and end to end: ASME B 16.10
Pressure/temperature rating: ASME B16.34
Materials: LCB, LCC, CF8, CF8M, CF3, CF3M, A105, LF2, F11, F22, F5, F304, F316, F304L, F316L
Operation: Handwheel, Bevel Gear, Pneumatic, Electric