DUAL PLATE CHECK VALVE

Compact Non-Return Protection with Non-Slam Performance

IO Valves Dual Plate Wafer Check Valves are compact, automatic non-return valves designed to prevent reverse flow in water supply, transmission, and distribution systems. The valve operates using two springassisted discs mounted on a central hinge, allowing smooth opening during forward flow and rapid closure as flow decelerates. The non-slam closing action minimizes pressure surges and water hammer, making the valve ideal for pumping systems and space-constrained installations. The wafer-type construction enables easy installation between standard flanges while maintaining low head loss and reliable sealing performance.

Material of Construction

Body : Ductile Iron GJS 500/7

Disc : Ductile CF8/CF8M/C954

Seal : NBR/EPDM

Spring : SS 304/ SS 316

Washer : PTFE

Rubber Strip : NBR / EPDM

Plug/Eye Bolt : Carbon Steel

Seat : NBR/EPDM

Coating : Epoxy Powder Coating with Min.250µ

• Spring-assisted dual disc design for rapid, non-slam closure

• Effective prevention of reverse flow and pressure surges

• Compact wafer construction with reduced face-to-face dimension

• Full flow passage ensuring low head loss

• Tight shut-off with resilient elastomer seating

• Suitable for horizontal and vertical (flow-up) installation

• Lightweight design for easy handling and maintenance

Key Features

Design & Testing Standards

• Flange Drilling: EN1092-2

• Medium: Water

• Operating Temperature: -10°C to +80°

Size Range

DN 40 – DN 800

Pressure Rating

PN 6/ PN 10 / PN 16

Municipal Water Pumping Lines

Lift Irrigation Pumping Lines

Typical Applications

AXIAL FLOW NON-SLAM CHECK VALVE

SWING CHECK VALVE