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DPW Series Dual Disc Metal Hinge Check Valves

DPW Series

The DPW dual plate wafer check valves are designed for high-pressure and extreme-temperature industrial applications, delivering reliable backflow prevention with API-compliant performance. Covering a broad range of pressure classes and sizes, these metal hinge dual disc valves are ideal for demanding process environments including chemical, refining, and power generation. Available in multiple materials and configurations—including retainerless designs for critical service—each valve is engineered for low pressure drop, durability, and seamless interchangeability with industry-standard dimensions.

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Dual plate wafer check valves provide efficient, low-pressure-drop backflow prevention, improving system reliability and safety in high-pressure, high-temperature industrial applications while supporting flexible configuration for demanding process conditions.

  • API 594 compliant and API 598 tested to ensure industry-standard performance and interchangeability
  • DPW: Classes 125–150 (2"–20") for broad application coverage
  • Wide operating temperature ranges: DPW from -70°F to 500°F depending on seal
  • Dual plate, metal hinge design delivers reliable backflow prevention with low cracking pressure (0.098–0.241 psi)
  • Low-pressure-drop performance with high Cv range (up to 38,000) for efficient system flow
  • Material options including cast iron, carbon steel (WCB), and 316 stainless steel for demanding environments
  • Multiple seal and spring options (metal, Viton, EPDM, PTFE, Inconel, 316SS) to match temperature and service conditions
  • Standard or retainer less body design enhances safety for critical hydrocarbon and chemical applications
  • Compact, lightweight wafer design enables easy installation while reducing cost and system load
  • Engineered to reduce water hammer and improve overall system reliability and longevity
SpecificationRange / Options
Max Pressure 200-285 psi
Seal Material Buna, Viton, EPDM, PTFE, Silicone, Integral Metal, Metal
Disc / Internal Material 316SS
Body Material 316SS, Cast Iron, Cast Steel
End Connections Wafer
ASME Class 125, 150, 300
Brand Techno, US Valve

Downloads

Type File Name Downloadable File
Brochure DPW-Brochure-2301011-0723 PDF
CAD Model CAD-COMING-SOON PNG

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Close-up of a US Valve wafer check valve showing the elastomer hinge

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