Cast Steel Flanged Bolted Cover Check Valve（H44H）
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.
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
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
1.Swing type disc;
2.Compact and reasonable product structure;
3.No need for human intervention;
4.Effectively prevents backflow;
5.Can be used as a backup system;
6.Reliable tightness and good performance;
7.Rapid closing and flexible actions of the valve disc;
8.Can be designed with a Damping Cylinder;
9.Smooth fluid passageway and small fluid resistance;
10.Small closing impact, water hammer is not liable to be generated.
Standard materials of parts
|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|
Q:Why choose us ?
A: we are a manufacturer, we have been manufacturing check valve more than 20 years.
Q. what is your payment term?
A: T/T 30% down payment, balance to be paid before shipment. or L/C.
Q:Can we print our logo on your products?
A: yes, we offer OEM/ODM service, we support the customized logo, size, package,etc.
Q: what is your main market?
A: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Q: Can I get samples from your factory?
A: Yes, Samples can be provided.
Q: If products have some quality problem, how would you deal with?
A: We will responsible for all the quality problems.