Wafer check valves use a swinging disc to allow or block flow. Their design allows them to be fitted in extremely tight spaces – where the flanged check valve can not be used. The wafer check valves have molded bodies around the area where the disc opens up. This is the most important difference between the above two types of valve.
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Size: 2“-60”
Pressure: American National Standards Institute (ANSI) 150~2500 LB
Carbon steel. Stainless Steel, Hastelloy C, Bronze, Aluminum, Stellite, Copper, Silicone Bronze, Brass, 3% Nickel Iron, 17-4 PH Stainless Steel, 400 Series Stainless Steel, Alloy 20Cb-3, Monel, etc.
Design Standards: API594/API6D
Pressure-temperature Rating: ASME B16.34
Face to face: API594
Flange Ends: ASME B16.5/ASME B 16.47
Inspection and Test: API 598
Light and compact
Zero leakage sealing design
Non Slam Design
Installed in the horizontal and vertical
Discs open 85° to ensure low pressure drop.
Positive sealing under most operation conditions.
Bubble tight close off
