Dual Disc Check Valve

A Dual Disc Check Valve, also known as a double-plate check valve, is designed to prevent backflow in pipelines while allowing smooth forward flow. It consists of two spring-loaded semicircular discs mounted on a hinge, which open automatically when fluid flows in the correct direction and close quickly to block reverse flow.

The compact, lightweight design of dual disc check valves reduces water hammer and minimizes pressure drop compared to traditional swing check valves. They are ideal for pipelines with space constraints and are widely used in water supply, HVAC, oil and gas, chemical, and industrial systems where reliable backflow prevention and efficient operation are critical. These valves are available in various materials, sizes, and pressure ratings to suit different applications.

Features

Compact and Lightweight Design – Requires less space and is easy to install.
Automatic Operation – Opens with forward flow and closes quickly to prevent backflow.
Reduces Water Hammer – Minimizes pressure surges and protects pipelines.
Low Pressure Drop – Efficient flow with minimal resistance.
Durable Construction – Made from high-quality materials for long-lasting performance.
Versatile Applications – Suitable for water, oil, gas, chemical, and industrial pipelines.

Technical Specifications

Valve Type: Dual Disc / Double Plate Check Valve
Operation: Automatic, spring-assisted
Body Material: Cast Iron / Ductile Iron / Carbon Steel / Stainless Steel
Disc Material: Stainless Steel / Carbon Steel / Alloy Steel
Seat Material: Metal-to-Metal or Rubber-Lined (EPDM/NBR/PTFE)
End Connection: Wafer Type / Lug Type / Flanged
Pressure Rating: PN10 / PN16 / Class 150 / Class 300
Size Range: 50 mm to 1200 mm (2” to 48”)
Temperature Range: -10°C to 425°C (depending on material)
Applicable Media: Water, Oil, Gas, Steam, Chemicals
Design Standards: IS / ANSI / API / DIN / BS
Testing Standards: Hydrostatic and functional testing as per standards