Dual Plate Wafer Check Valve

Introduction of Dual Plate Wafer Check Valve

Dual plate, spring loaded, wafer style design for the protection of gas or liquid piping systems

Industry Standards: ASME B16.1, B16.5, B16.24, B16.34, B16.47 and B31.1

NACE MR-01-75 

Description

  • Light weight, versatile design, 80 to 90% lighter than conventional full-body check valves.
  • Reduces pipe supports, simplifies piping, easier, less costly installation.
  • Reduced thermal and seismic considerations.
  • No need for additional expensive support.
  • Optimum space utilization; simplified piping.
  • Spring-loaded, double door design has low cracking pressure.
  • Discs open 85° to ensure positive closing.
  • Materials and trims available for all services within temperature range.
  • Extended leg springs prevent seat wear caused by scrubbing.
  • Springs are precisely calculated to increase the responsiveness of the disc, thus reducing damaging effects of water hammer.
  • Resilient or metal-to-metal seat available.
  • BUNA-N, Viton®, EPDM (and other materials as required) molded into the body.

Specifications

Valve Size 2″–76″ DN50–DN1900
Pressure Class 150LB to 2500LB PN10 to PN250
Materials WCB, CF8, CF3, CF8M, CF3M, B148, A105, LF2, F304, F316
Design and Manufacturing Standards API6D
Face to Face Standards ASME B16.10
Flange Dimension Standards ASME B 16.5, ASME B16.47, EN1092-1
Pressure Test Standards API598, API 6D
Fire Safety Test Standards API607
Quality/Product Certifications ISO9001, ISO14001, ISO18001
Fugitive Emissions ISO 15848-1, API 622
NACE NACE MR 0103 NACE MR 0175
Valve operator options
Shutoff Class API 598 (Zero Leakage),
Bore Full Bore
Process Connection Types Wafer type, Flange Type, Lug Typt,

Product Details

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