Y-Calibur Valve Makes In-Line Repairs Possible

Featured Product from DFT Inc.

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The DFT® Y-Calibur® Silent Check Valve is an in-line repairable, spring-assisted, center guided, non-slam check valve that provides reliable, low-maintenance service for a wide range of fluids and pressure/temperature combinations. The valve consists of a body, bonnet, gasket, seat, spring, disc with stem and guide bushing. Y-Calibur check valves are available in a wide range of sizes and pressure ratings and in a variety of materials to meet most check valve requirements.


  • Spring-assisted silent closing, non-slam
  • 4" to 14" Line size *
  • ASME B16.10 Face-to-Face dimensions
  • ASME Class 600 to 2500 (See chart)
  • Standard body materials:
    • A216 WCB carbon steel
    • A351 CF8M stainless steel
  • Optional body materials:
    • Duplex SS, Hastelloy®, Inconel® 600, Monel®
  • Standard ends:
    • Butt weld
  • Stainless steel trim
    • Other materials available
  • Center-guided
  • Dual-guided stem & disc
  • Horizontal or vertical installation
  • Tight shutoff
  • Protected spring
  • Fully repairable in-line
  • Versatile
  • Axial flow/non-slam design
  • Options:
    • Inconel® X-750 Spring
    • Custom sizing low flow
    • Severe service trim
    • Stellite® trim

* other sizes available on application

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About DFT Inc.

DFT provides cost-effective application engineering assistance, rapid prototyping, and fast-turn initial production. Our staff responds quickly and our systems are designed to deliver reliably within our ISO9001-2015 quality management system. For over 75 years DFT has solved check valve problems, prevented check valve failure and water hammer, and solved severe service control valve problems.