Wafer Dual Plate Check Valve

GZP dual -plate check valves are manufactured to the latest edition of API 594/API 6D and tested to API 598.All valves from GZP VALVE are strictly 100%tested before shipment to guarantee zero leakage.

Dual-plate Check Valve is also called reflux valve, backpressure valve and one way valve. This type of valves is opened and closed by the force of the flow of media through the pipe. It's an automatic valve. They are widely applied in petroleum, chemical, textile, power, marine, metallurgy, etc.

Dual Plate Check Valves

Our Dual Plate Wafer Check Valves are available in sizes up to 60" in Carbon Steel, 316 Stainless Steel and Ductile Iron and in Classes 125, 150, 300 and 600, 900, and 1500. Available elastomers include Buna N, EPDM, Viton, Metal and 316SS API Trim 10. Valve internal components can be selected to fit your exact application requirements. We also carry a retainerless configuration to the valve as well.

API 594 Design — API 598 Tested Dual Plate Check Valves

Check valves are applicable for air, gas, liquids, and vapors. Our facilities are kept neat, clean and organized, with attention to detail that make the difference in the quality of dual plate check valve manufacturing.

Features & Benefits

● Exceeds API Specifications

● Low Pressure Drop

● Light Weight

● Lower Cost

● Alleviates Water Hammer

● Simple Installation

● Every Valve Tested

● Optional Retainerless Design

The main construction features of GZP Dual-palte check valve are following:

● Retainerless body design with no external body penetrations eliminating the possibility of outside leakage. Disc assembly secured in place by high strength key.

● End gasket surfaces are uninterrupted with no screws or lock pins breaking the gasket surface. No gasket restrictions required.

● Seat faces lapped for smooth finish and superior sealing.

● High torsion inconel springs for quick closing.

● Each valve is shell and seat pressure tested per industry standard API 598.

● Available in Wafer, Lug and Double Flange styles.

● Each valve has a unique certification number that is traceable to the valve certification sheet which includes MTR data, pressure test report, and inspection report.

Dual Plate Design
Manufacturing to API Std. 594
Integral Shaft and Disc Design with NO Hinge or Stop Pins
The Discs Swing Out of the Flow Stream Resulting in High Flow Capacities and Low Pressure Drops
Renewable Seats for Low Cost and Easy Maintenance
Each Disc has an Independent Spring for Instant Non-Slam Operation
The Springs are Shielded from the Flow Stream for Improved Service
Retainerless Design with No External Holes or Leak Points for Zero Fugitive Emissions

Sizes and Classes:
ASME 150 - 2500
16" - 24"

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