Dual Plate Wafer Check Valve

The wafer dual plate check valve is designed for pure pipelines, industrial applications, environmental protection systems, water treatment, and high-rise building water supply/drainage systems to prevent medium backflow. It features a wafer-type connection and a dual semi-circular butterfly plate design. The sealing surface can be either wear-resistant welded material or rubber-lined for enhanced durability.

Double butterfly disc, duo plate design
Design according to API594
Flange connection standard: GB/T 9113, EN1092-2 PN10/PN16, ANSI B16.10 125LB/150LB
Pressure test: EN 12266-1
Size range : 2″ to 24″, DN50 to DN600
Pressure range : PN10, PN16, CL125/150
Applications: water supply, drinking water, irrigation, sewage
Painting: the inner and outer surface of the valve is coated with powder epoxy coating.

Material List:

Part Name	Material
Body	Cast Iron, Ductile Iron, ASTM A536
Disc	ASTM A536, Ductile Iron, Stainless Steel CF8, CF8M
Seal ring	SS304, SS316, Bronze, EPDM, NBR, PTFE, VITON
Spring	SS410, SS304, SS316
Stem	SS410, SS304, SS316