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  • 3/8 316 SS BSS Style Basic-Check® Threaded In-Line Check Valve"

    Basic-Check® Threaded In-Line Check Valves

    (114)

    The DFT® Basic-Check® Valve is a versatile all-purpose, non-slam valve that provides reliable, low-maintenance service for a wide range of liquids, steam and gases at various pressure/temperature combinations. The valve consists of a guard cage, spring, valve disc, retaining ring and seat. It can be combined with pipe fittings such as reducing couplings, drain elbows, etc. to form a complete check valve unit ideally suited for a broad range of pipeline applications or incorporated into machinery for OEM applications. The metal-to-metal sealing area of the Basic-Check® valve’s disc and seat is precision-lapped, providing very tight shutoff of gas, steam and liquid. If bubble-tight shutoff is required, optional resilient soft seats are available.

    Standard Features:

    • 1/4" to 2 1/2" Line Size
    • 450 to 6000 CWP
    • Threaded Ends
    • Stainless Steel Construction
    • Spring-Assisted Silent Closing
    • Horizontal or Vertical Installation
    • Tight Shutoff - Lapped Disc & Seat
    • Easy Maintenance

  • Restrictor Threaded In-Line Check Valves

    Restrictor Threaded In-Line Check Valves

    (44)

    The DFT® Restrictor Check Valve (RCV) is a versatile, all-purpose, spring-assisted, in-line check valve for applications that require higher cracking pressures to open the check valve than those offered by other DFT® check valves. Cracking pressures are available from 2 to 40 psi. Like the Basic-Check® valve, the Restrictor Check provides reliable, low maintenance service for a wide range of fluids and gases at various pressure/temperature combinations. The valve consists of a guard cage, spring, valve disc, retaining ring and seat. It can be combined with pipe fittings such as couplings, drain elbows, etc. (not provided by DFT®) to form a complete check valve unit ideally suited for a broad range of applications. The RCV should not be considered a substitute for a Pressure Relief Valve.
    Not recommended for use on discharge of reciprocating compressors.

    Warning: Use with extra deep, bell reducer only

    Standard Features:

    • 1/4" to 2 1/2" Line Size
    • Higher Cracking Pressures (2 to 40 psi)
    • 450 to 2500 CWP
    • Threaded Ends
    • Stainless Steel Construction
    • Spring-Assisted Silent Closing
    • Horizontal or Vertical Installation
    • Tight Shutoff - Lapped Disc & Seat

  • SCV® Threaded In-Line Check Valves

    SCV® Threaded In-Line Check Valves

    (161)

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

    Standard Features:

    • 1/2" to 3" Line Size
    • 750 & 3600 CWP
    • NPT & SW Ends
    • Stainless Steel Construction
    • Inconel® X-750 Spring
    • Spring-Assisted Silent Closing, Non-Slam
    • Zelon® "O" Ring Body Seal
    • Horizontal or Vertical Installation
    • Body-Guided Disc
    • Tight Shutoff Lapped Disc & Seat
    750 CWP is rated to 470ºF.
    3600 CWP is rated to 400ºF.
    Buna-N CO2 resistant "O" ring is available upon request.

  • SCV-R® In-Line Restrictor Check Valves

    SCV-R® In-Line Restrictor Check Valves

    (103)

    The SCV-R® Check Valve is a non-slam Spring-assisted check valve designed for applications requiring "higher cracking pressures" than the DFT Model SCV® check valve. The SCV-R® check valve is a self-contained check valve that installs directly in a pipeline and contains all the proven features of the SCV® check valve.

    Standard Features:

    • 1/2" to 2" Line Size
    • 750 CWP
    • NPT & SW Ends
    • Stainless Steel Construction
    • Inconel® X-750 Spring
    • Spring-Assisted Silent Closing, Non-Slam
    • Cracking Pressures: 0.8 to 40.8 psig
    • Zelon® "O" Ring Body Seal
    • Horizontal or Vertical Installation
    • Body Guided Disc
    • Tight Shutoff Lapped Disc & Seat
    • Easy Maintenance
    Notes:
    • 3" is not Available
    • Contact DFT® for Other Cracking Pressures.
    • 750CWP is Rated to 470ºF.

  • Vacuum Breaker Threaded In-Line Check Valves

    Vacuum Breaker Threaded In-Line Check Valves

    (13)

    DFT® Vacuum Breakers provide effective protection against collapse of pressure vessels, tanks and rolls. They prevent condensate "back-up" when equipment is shut down or inlet steam is reduced by modulating control valves. In piping systems, DFT® Vacuum Breakers are used to break siphons, prevent pipe collapse during transient pressure drops, and to provide addition of air on the downstream side of check valves to dampen water hammer.

    Standard Features:

    • 1" to 4" Size (Outside Diameter)
    • 450 to 6000 CWP
    • Threaded O.D. (MNPT)
    • Unthreaded Inlet Bore
    • Stainless Steel Construction
    • Spring-Assisted Silent Closing
    • Horizontal or Vertical Installation
    • Tight Shutoff - Lapped Disc & Seat
    • Easy Maintenance
    • Versatile