Dual Plate Wafer Type Check Valves

The Dual Plate Wafer Type Check Valve is designed to prevent reverse flow in piping systems while offering a compact, efficient solution for industrial applications. Its dual-plate design ensures rapid closure with minimal water hammer, protecting downstream equipment and enhancing system longevity.

Category:
Pressure Class

150

,

300

This valve is highly effective for reducing flow reversal in liquid and gas systems. With pressure ratings of Class 150# and 300#, it is suited for moderate and high-pressure systems, offering low pressure drop and energy-efficient performance. The wafer-type construction allows for easy installation between flanges, saving space and weight in comparison to conventional swing check valves.

  • Valve Size: 2" to 24" (DN 50 to DN 600)
  • Pressure Rating:
    • Class 150#: Maximum working pressure of 150 psi (10.3 bar) at 100°F.
    • Class 300#: Maximum working pressure of 300 psi (20.7 bar) at 100°F.
  • End Connections: Flanged as per ASME B16.5, providing secure, leak-free integration into piping systems.
  • Body Material:
    • Carbon Steel (ASTM A216 WCB)
    • Stainless Steel (ASTM A351 CF8/CF8M) for enhanced corrosion resistance.
  • Disc Material: Stainless steel or alloy steel for durability and long service life.
  • Spring Material: Inconel or stainless steel for strength under varying pressures and temperatures.
  • Seating: Metal-to-metal or soft-seated (NBR, EPDM, PTFE) depending on application needs.
  • Design Standards: API 594, ASME B16.34, ensuring compliance with industry standards.
  • Dual Plate Design: Two spring-loaded plates close automatically when flow stops, reducing the risk of water hammer and ensuring smooth operation.
  • Compact and Lightweight: The wafer-type design minimizes valve weight and size, making it ideal for installations where space is limited.
  • Energy Efficient: The streamlined flow path ensures minimal pressure drop, optimizing overall system efficiency and performance.
  • Pressure Ratings: Available in Class 150# and 300#, making it adaptable to a range of industrial pressures and applications.
  • Corrosion-Resistant Materials: Available in carbon steel, stainless steel, and other alloys, the valve offers resistance to corrosion, making it suitable for harsh environments.
  • Flanged End Connections: The wafer design fits between standard flanges, providing secure and easy installation.

Testing & Certification:

  • Hydrostatic and pneumatic testing per API 598.
  • ISO 9001 certified manufacturing process.
  • Optional NACE MR0175 compliance for sour service environments.