Double Flange Wafer Check Valve

Double Flange Wafer Check Valve 

ALPHA’s retainerless design Double Flange Wafer Check Valves are available for a broad range of applications. 

Specification 

Size Range: 2" – 60"
Pressure Class:
ASME 150 – 2500
API Standards: 594, 6D & 6A
ASME B16.34

Feature 

· Wafer, Lug & Flange Type

· Retainerless Design

· Low Checking Pressure

· Non-Slamming

· Firesafe by Design

Advantage 

The disc are fixed onto the valve body with a spindle on which two torsional springs are equipped for installing the butterfly plate onto the valve body sealing face. The butterfly plate pressed by the springs is opened by relying on the medium pressure, and the valve is closed by the spring force and the medium pressure under backflow. It can be installed on horizontal and vertical pipelines.