TLW<sup>®</sup> Check Valve

TLW® Check Valve

The TLW Check Valve (Tapped Lug Wafer) was engineered for applications where exposed studs are not suitable. This non-slam spring-assisted, center-guided, lugged pattern wafer check valve is designed to prevent water hammer and reverse flow. The lightweight compact design fits between mating flanges and meets API 594 face-to-face dimensions. The TLW Check Valve body design eliminates potential leak paths to the environment and is an easy-to-maintain check valve for applications involving liquids, gases, or steam. Tapped holes are provided in the body for lifting lugs to assist with installation (10” and larger sizes only).


  • API 594 Face-to-Face dimensions
  • Threaded Lug Design
  • ASME B16.5
  • RF Wafer ends
  • Spring-assisted silent closing
  • Sizes 2” thru 24”
  • Horizontal or vertical installation
  • ASME Class 150 and 300
  • Standard body materials:
    • A216 Grade WCB carbon steel
    • A351 CF8M stainless steel Stainless steel seat, disc & bushing
  • Nitronic® 60 stem
  • Inconel® X-750 Spring
  • Seat Leakage per MSS SP-61
  • Tapped holes in body for lifting lugs (10” size and larger)
  • Axial flow
  • Nozzle style
  • Options:
    • 316 SS spring
    • Custom sizing
    • Low flow
    • Soft seat
    • NACE