HUHANG TECHNOLOGY GROUP CO., LTD. is a leading manufacturer of API 594 dual plate check valve in China. Our API 594 dual plate check valve bodies are available in carbon steel, stainless steel, duplex stainless steel, alloy steel, nickel alloy and more. The internal components of the valve can be selected to meet your exact application requirements. We also offer a wide range of valves such as ball valves, check valves and butterfly valves.

API 594 dual plate check valve design

Check valves are suitable for air, gas, liquid and steam. Our facilities are kept neat, clean and well organised with attention to detail, thus improving the quality of manufacture of our dual plate valves.

Features and benefits of the dual plate check valve

Exceeds API specifications

Low pressure drop


less costly

Reduced water hammer

Easy to install

Every valve is tested

Optional non-retentive design

Standard with and without retainer body design

API 594 Dual plate check valve

In all dual plate check valves, the centre pin (where the valve flaps rotate away) and the restrictor bar (to prevent the flaps from colliding with each other) need to be fixed to the body. In the standard body style, the result is a penetration through the body wall. In the retainerless design, the sleeve is inserted inside the body, thus avoiding penetration of the body wall. This makes the non-retentive style valve particularly suitable for critical hydrocarbon and chemical processing applications, or any service involving environmental safety or fire hazards.

Industry standard for dual plate check valves

The dual plate check valve was originally introduced in the late 1950's and quickly became the check valve of choice for many pipeline engineers due to its proven reliability and low pressure drop. They have become the standard for process and project engineers worldwide and are used in many different industries as listed below. Power plants, refineries, chemical plants, wastewater treatment plants, pulp and paper mills, etc.

Our dual plate check valves comply with all industry standards. API 594 dual plate check valves specify valve dimensions including wall thickness, face-to-face dimensions and outside diameter.

Fast delivery of dual plate check valves

HUHANG is an API 594dual plate check valve manufacturer with a large inventory of valves, parts and components in a variety of materials so we can respond quickly to your needs. We have complete engineering data including available materials, dimensions, exploded drawings, part numbers and descriptions, standard models, valve Cv, pressure loss curves and other information about double plate check valves, so contact us today if you are interested.