Find My Check Valve
The DFT® Model WLC Cast Iron Wafer style Silent Check Valve is a spring-assisted, in-line check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature combinations. This check valve is cast iron and face-to-face according to MSS-SP126. The joint between the seat ring and body is sealed by the flange gasket upon installation preventing any leakage through the joint when the valve is in service.

The WLC® Cast Iron Check Valve is ideally suited for applications in water treatment, power generation, and other industries, though not recommended for gas or steam service. It will help to eliminate water hammer caused by double-door style check valves.
Unit of Measure



N/A WLC® - Cast Iron


N/A 125


N/A 10.0 inDN 250

Dimension A

N/A 8.25 in210 mm

Dimension B

N/A 16 in406 mm


N/A 129 lb58.5 kg

Temperature Rating

N/A 200 ºF Max 93 ºC Max

Pressure Rating

N/A 200 psig0 barg13.8 barg


N/A Wafer (RF)


N/A 1450

Materials of Construction

Body1 N/A A126 Class B

Disc/Stem Assembly

N/A A351 CF8M
Seat2 N/A A351 CF8M


N/A A313 T302 Stainless Steel


N/A 316
Trim3 N/A 316 SS

Body Material

N/A Cast Iron

Available Soft Seat Materials

Available Soft Seat Materials

N/A Buna-N (-70 to 250°F)



N/A Buna-N

N/A Buna-N Soft Seat



  • Wafer design
  • Lightweight
  • Spring-assisted silent closing
  • Center guided (2" to 10")
  • Dual guided stem (2" to 10")
  • Horizontal or vertical installation
  • Protected spring
  • ASME 125 & 250
    - 2" to 10" Line Size
    - Cast Iron body
    - Bronze or 316 SS trim
    - Ends:
      - Wafer FF
    - AWWA seat leakage
  • Axial flow
  • Nozzle style


N/A Chemical Lines Cooling Towers Crude & Refined Product Lines Evaporators Generator Inlet & Discharge Hydraulic Lines Metering Pumps Mine Dewatering Process Lines Pump Discharge Vacuum Breaker Water Lines Water Treatment

  • 1 Not recommended for gas or steam service.
  • 2 Buna-N soft seat available for bubble-tight shutoff.
  • 3 316 stainless steel trim recommended for temperatures from 180°F to 200°F.