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API 594 ANSI Dual Plate Wafer Check Valves

ANSI Dual Plate Wafer Check Valve

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 of Dual Plate Check Valves

  • Exceeds API Specifications
  • Low Pressure Drop
  • Light Weight
  • Lower Cost
  • Alleviates Water Hammer
  • Simple Installation
  • Every Valve Tested
  • Optional Retainerless Design

Standard vs. Retainerless Body Designs

Our Dual Plate Wafer Check Valves are available in two different body styles—Standard and Retainerless. Both versions have the same performance, dimensions, and ratings. In all dual plate check valves, the center pin (off which the discs rotate) and the limiter bar (which prevents the discs from hitting each other) need to be affixed to the valve body. In a standard body style, the result is a penetration through the body wall. In a retainerless design, a sleeve is inserted into the inside of the body, thus avoiding penetrating the body wall. This makes retainerless style valves particularly desirable and applicable for critical Hydrocarbon and Chemical processing applications, or any service where environmental safety or fire hazards are concerned.

The Industry Standard

Dual Plate Wafer Non-Return Valves (equivalents of Techno Check Valve 5050, 5051, & 5053) were originally introduced in the late 1950s and quickly became the check valves of choice for many piping engineers because of their proven reliability and low pressure drops. They have become the standard for process and project engineers worldwide and are used extensively in many different industries listed below.


  • Power Plants
  • Refineries
  • Chemical Plants
  • Wastewater Treatment Plants
  • Pulp & Paper Mills.

Our dual plate check valves conform to all industry standards. API 594 dictates valve dimensions, including wall thickness, face-to-face dimensions and OD, so valves can replace any make of ANSI Dual Plate Water Check Valve.

ANSI Dual Plate Wafer Check ValveFast Delivery of Dual Plate Wafer Check Valves

We are a dual plate check valve supplier that maintains an extensive inventory of valves, parts and components in a wide variety of materials so we can respond to your needs quickly.

Complete Engineering Data

Engineering data, including available materials, dimensions, exploded view, part numbers and descriptions, standard models, valve Cv, pressure loss curves, and other information on dual plate wafer check valves is available in our brochure.

Click here to Request a Quote or call us at 1-410-789-0999

Request Your Quote or call us at 1-410-789-0999