Dual Plate Check valves are defined as the mechanical device which allows the flow of fluid to go in only one direction. Dual plate Check valves work by the differential pressure and fluid flow opening the hinged discs and compressing the spring. When the flow begins to slow down the spring gradually assists in the closing of the valve. The spring loading effectively prevents the slamming (also known as water hammer) associated with other check valves.
Applicable Standard
Design Standard: API 594
Face to Face: API 594
Flange dimension: ANSI B16.5, ANSI B16.47
Inspection and Test: API 598
Products Range
Size: 2" ~ 36" (DN50 ~ DN900)
Rating: ANSI 150lb-1500lb
Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Design Features
Retainer less can available
Light-weight & compact design
Spring loaded disc
Resilient or metal seated can available
Dual plate disc
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