DFT® Economical Spring-assisted Check Valve

Featured Product from DFT Inc.

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The DFT® Model SCV is a corrosion-resistant, dependable, versatile and economical spring-assisted, in-line check valve for a wide range of applications. Whether the fluid is liquid, gas or steam, the SCV provides tight shut-off and protects other equipment in the system from water hammer. Its stainless steel construction ensures a long service life.

Applications include Liquids, Gases, and Steam

For a detailed specification sheet, click here.


  • Horizontal or vertical installation
  • Sizes ½" thru 3"
  • 750 & 3600 CWP,
  • NPT & SW ends
  • Stainless steel construction
  • Inconel® X-750 spring
  • Spring-assisted silent closing, non-slam
  • Zelon® "O" body ring
  • Body guided disc
  • Tight shut-off lapped disc & seat
  • Simplified construction - 5 parts
  • Easy maintenance
  • Versatile
  • Options
    • 3166 SS Springs
    •  Body Seal Weld
    • Soft Seat
    • Alloy 20 body & seat (ASME 300)
    •  Hastelloy C body & seat (ASME 300)
    • NPT x socket weld ends
    • SCV-R restrictor check (higher cracking pressure)
    • Butt weld ends
    • NACE

 About DFT Inc.

DFT Inc. manufactures world-class, problem-solving, in-line, axial flow, nozzle style, silent check valves, and severe service control valves. We provide 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 more than 75 years DFT has solved check valve problems, prevented check valve failure, water hammer, and solved severe service control valve problems.