Piston Check Valve

Main Features: The valve is opened/closed by the valve disc moving in a direction parallel to the valve seat hole axis and can only be installed on horizontal pipelines with the major function of preventing medium backflow when shutting down the pump and maintaining the water column required by...

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Product Details

Nominal Diameter: DN25 - DN300

Nominal Pressure: PN1.6 - PN4.0

Working Temperature: -40°C - 425°C

Suitable Medium: Water, Gas, Steam, Oil, Nitric acid, Acetic acid, etc

Materials

Name	Body	Bonnet	Stem	Disc	Seat
WCB	WCB	WCB	13Cr	2Cr13	2Cr13
					STL
304	CF8	CF8	304	304	304
					STL
316	CF8M	CF8M	316	316	316
					STL
304L	CF3	CF3	316	304L	304L
					STL
316L	CF3M	CF3M	316	316L	316L
					STL

DIN Lift Check Valve Structure

Standards

Manufacture Standard	Face to Face	Flange Drilling	Pressure-Temperature Class	Test Standard
API594, API6D, JB/T8937	API594, API6D JB/T8937	JB/T74-90, HG/T20592-20635, SH3406, ANSI B16.5, API604, ASME B 16.47, DIN2543-2548	JB/T74, GB/T9124, ASME B16.34, DIN2401,SH3406	API598, JB/T9092

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Piston Check Valve

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