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Wafer Type Piston-lift Check Valve
Product overview
Wafer type piston-lift check valve are used in all kinds of pipes under the pressure of PN1.0-16.0MPa and working temerature of -196~425℃, of they are mainly used to prevent the reverse flux of the media.
Product Features
1. The product has reasonable structure, reliable sealing and excellent performance;
2. The sealing surface of valve disc and valve seat is made of hardfacing alloy, which is wear-resistant, high-temperature resistant, corrosion-resistant and has long service life;
3. The flow channel is unobstructed and the fluid resistance is small;
4. The valve disc stroke is short and the impact force of valve closing is small.
Execution Standard
Design spec：JB/T 8937
Face to Face：JB/T 8937
Flange end：JB/T 79、GB/T 9113、HG/T 20592
Test & check：JB/T 9092、GB/T 13927
Pressure-temp：GB/T 12224
Performance Parameter
Nominal diameter：DN15~250mm
Nominal Pressure：PN1.6～4.0MPa
Applicable media：Water, steam, oil and nitric acid
Applicable temperature：≤235℃
Main materials：WCB、15CrMo、ZG1Cr18Ni9Ti
