Stainless Steel Flanged Ends Lift Swing Check Valve
Swing check valves are unidirectional valves preventing backflow of media. Other terms used for these valves are non-return valve or one-way check valve. Check valves work automatically so there is no need for a wheel or actuator. Consider a check valve when there is imminent damage due to backflow or to prevent contamination. That being said, there should be the right orientation of the lone inlet and outlet to ensure that the check valves are functioning properly.
Specifications:
Size: NPS 2"~48",DN50-DN1200
Pressure Rating:Class 150lb-Class 2500lb,PN16-PN420
Body Material: carbon steel, stainless steel, alloy steel, etc
End connection: Flange end, Butt welded end
Working temperature:-196ºC~+560ºC
Design and Manufacture:API 6D / BS 1868
Face to face: ASME B16.10
Flange ends: ASME B16.5
Butt Weld ends: ASME B16.25
Inspection and test: API 598 / API 6D
Suitable Medium: Water, Oil and natural gas and other causticity medium (Different raw material for different medium)
Features
1.Swing type disc
2.
Bolted bonnet, and the type of middle flange gasket may be different according to pressure class; Check valve in 600LB may adopt pressure sealed structure.
3.Compact and reasonable product structure;
4.No need for human intervention;
5.Effectively prevents backflow;
6.Can be used as a backup system;
7.Reliable tightness and good performance;
8.Rapid closing and flexible actions of the valve disc;
9.Can be designed with a Damping Cylinder;
10.Smooth fluid passageway and small fluid resistance;
Standard materials of parts
| No. |
Parts |
Materials |
| 1 |
Body |
ATM A216 WCB |
| 2 |
Seat ring |
ASTM A105 + 13Cr |
| 3 |
Disc |
ASTM A216 WCB + 13Cr |
| 4 |
Disc nut |
ASTM A182 F6 |
| 5 |
Hinge |
ASTM A216 WCB |
| 6 |
Hinge pin |
ASTM A182 F6 |
| 7 |
Gasket |
Stainless steel and graphite spiral wound |
| 8 |
Cover |
ASTM A216 WCB |
| 9 |
Cover bolt |
ASTM A193 B7 |
| 10 |
Cover nut |
ASTM A194 2H |
| 11 |
Washer |
Steel |
Product:
Workshop:
Inspection
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