WLC® Wafer Valve

The DFT WLC® Wafer style Silent Check Valve model is a lightweight, spring-assisted, center guided, in-line check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature combinations. 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. 

Specifications:

• Wafer design
• Lightweight
• Spring-assisted silent closing
• Edge guided (1” & 1-1/2”)
• Center guided (2” to 10”)
• Dual guided stem (2” to 10”)
• Horizontal or vertical installation
•  Protected spring
• ANSI 150 to 2500

      - 1” to 10” Line Size
      - WCB & 316 SS bodies
      - 316 SS trim
      - Ends:
          • Wafer RF
          • Wafer RTJ
      - MSS-SP 61 seat leakage
      - API 594 Face-to-Face dimension:
          • Class 600 RF
          • Class 900/1500 RF

*1” & 1-1/2” WLC; Cl 150 to 1500 - 316 SS trim except 17-7 disk in Cl 900+.
Some valves contain body seals (“O” ring or gasket). Consult DFT for material selection.

Notes:

1. Soft seats are available for bubble-tight shutoff.
2. Inconel® X-750 spring is available.
3. Excalibur only. Contact DFT for stainless steel or other bolting materials.
4. Corrugated flexible graphite material.