Dual Plate Check
Valve

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Verified Standards

Dual Plate Check Valves – Engineered for Excellence

Size Range

  • 2” to 48” (DN 50 mm to DN 1200 mm)

Pressure Ratings

  • ASME Class 150, 300, 600
  • PN 10 / PN 16 / PN 25

Design Standards

  • API 594
  • API 6D
  • ASME B16.34
  • MSS SP-125
  • ISO 5752

End Connection Types

  • Wafer Type – Fits between flanges (ASME/EN/BS)
  • Lug Type – Threaded bolt holes for flange alignment
  • Custom Face-to-Face Dimensions available on request

Operation Types

  • Non-Return Type (Automatically Operated)
  • Optional: Spring-Assisted Closure
  • Optional: Dashpot (Hydraulic Dampener)

Key Features

  • Compact Wafer Body Design
  • Dual Spring-Loaded Plates for Fast Closure
  • Low Pressure Drop Design
  • Non-Slam Operation
  • Suitable for Horizontal or Vertical Installation
  • Optional Metal-to-Metal Seat & Soft Seat
  • Optional Disc Retainer Pinless Design

Service Parameters

  • Pressure: Up to 1500 psi
  • Temperature: -46°C to +425°C
  • Applications:
  • Oil & Gas Pipelines
  • Process & Chemical Plants
  • Water Treatment & Distribution
  • arine & Desalination Systems
  • Power & Steam Lines

Advantages

  • Lightweight & Compact Construction
  • Maintenance-Free Inline Design
  • Quick Shutoff to Prevent Water Hammer
  • High Performance in Tight Spaces
  • Versatile Mounting – Horizontal or Vertical
  • Cost-Effective and Reliable for Long-Term Use
Material Type Grades Application Suitability
Carbon Steel ASTM A216 Gr. WCB / WCC General water, oil & gas
Stainless Steel ASTM A351 Gr. CF8 / CF8M Corrosive chemicals & seawater
Duplex Steel ASTM A995 Gr. CD3MN / CE3MN Offshore, marine & desalination
Bronze ASTM B62 / B148 Gr. C95800 Brine, marine water
Alloy Steel ASTM A217 Gr. WC6 / WC9 High temperature & steam
Others Monel, Inconel, Hastelloy (on request) Highly corrosive media

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