Dual Plate Check Valve, Reliable Backflow Prevention Device

Our dual plate check valve is engineered for high-performance flow control in industrial piping systems, ideal for oil & gas, water treatment, chemical processing, and HVAC applications. Featuring two semi-circular discs (dual plates) hinged on a central shaft, it ensures rapid, automatic closure to prevent media backflow—minimizing water hammer and protecting equipment from damage.

Constructed with premium materials (CF8M stainless steel, ductile iron, or Hastelloy for corrosion resistance), the valve offers exceptional durability and compatibility with diverse media (liquids, gases, slurries). Its compact, lightweight design reduces installation space and operational friction, while the spring-loaded mechanism guarantees reliable sealing even at low flow rates or pressure differentials.

Compliant with API 594, ASME B16.34, and ISO 9001 standards, it delivers leak-tight performance across pressure classes 150–600 and sizes DN15–DN600. Suitable for both horizontal and vertical installations, this valve combines robust construction, low maintenance, and long service life—making it a cost-effective solution for critical industrial flow control needs.

product details

Product Size

Size: 1/2"~10"
Working Pressure: PN16
Working Temperature: -20ºC~230ºC
Applicable Medium: Water,Oil,Gas,Acid

Size: 1/2" - 4" Investment Casting
5"-10" Composite Casting Design Standard: ASME B16.34
Wall Thickness: ASME B16.34 Inspection and testing: MSS SP-110/EN 12266

Size Range	Body Material
8"-60" DN200-DN1500	WCB, CF8, CF3, CF8M, CF3M, B148, A105, LF2, F304, F316
Pressure Rating	Disc Material
Class150-Class900 PN10-PN40	WCB, CF8, CF3, CF8M, CF3M, B148, A105, LF2, F304, F316
End Connection	Seat Material
Flange (RF, RTJ)	EPDM, NBR, PTFE, hard seal
Structure Style	Stem Material
Full Port	A182 F6a, 410, 420, 304, 316, 17-4PH, F11, etc.
Actuator Options	Design Standard
/	API594, API6D
Temperature Range	Face to Face Standard
-50℃~650℃	ASME B16.10/API594
Connection Standard	Test Standard
Flange Drilling: ASME B16.5, ASME B16.47	API 598

Packaging

Dual Plate Check Valve, Reliable Backflow Prevention Device

Product Size

Packaging

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