CI Dual Plate Check Valves
Cast Iron Dual Plate Check Valves as per API 594
Cast Iron Dual Plate Check Valves, designed in compliance with API 594, provide a robust, space-saving solution for preventing reverse flow in pipelines. These wafer-type / flanged non-return valves feature a dual spring-loaded disc mechanism that ensures rapid closure, minimizing water hammer and protecting downstream equipment.
Their compact design, low pressure drop, and lightweight construction make them ideal for both vertical and horizontal installations across a wide range of water, HVAC, fire protection, and industrial process systems.
Key Features & Types (as per API 594)
- Dual Spring-Loaded Plates:Ensures fast, non-slam closure to protect pumps and piping
- Design Standards: Face to face as per API 594
- Body Material: Cast Iron (IS:210 FG 200) or ASTM A126 Class B equivalent
- Plates: Cast iron / Ductile Iron / Stainless Steel
- Seating Material:Metal to Metal
- Hinge Pin & Spring: Stainless steel for corrosion resistance and long life
- Flow Orientation: Horizontal and vertical (upward flow) compatible
- End Connection: Wafer type per API 594 / Flanged Ends as per required drilling std.
- Strainer Type:MS Strainerwith perforated / slotted screen to prevent entry of solids
- Coating: Black Bitumen/ Blue Epoxy
- Operation: Automatic
- Size Range: 50mm to 1200mm
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