Find My Check Valve
  • SCV® Threaded In-Line Check Valves

    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.

  • DFT® HI-100® Severe Service Control Valve

    The HI-100® Control Valve features an in-line Straight-thru, venturi flow design. The control element, a spherical ball, is contained by a cage that positions the ball relative to the downstream seat by means of linear stem travel. There are no close clearances between the moving parts (i.e. cage, ball and seat). These features enable the valve to operate smoothly and efficiently at high or low temperatures, and/or in fluids carrying suspended particles such as slurries.
    The Quick Change Trim feature permits in-line replacement of the internal trim (ball, stem, cage, seats, seat retainer cartridge and wear bushings). Interchangeability of the upstream and downstream seats and wear bushings extends the life of the valve and allows for a reduced operating cost when compared to the competition.


  • FBC® Insert Wafer Check Valves

    The FBC® Check Valve is a compact, lightweight, insert wafer check valve that easily installs between two flanges. The non-slam, spring-assisted design prevents "water hammer" and "reverse flow". The FBC® Check Valve contains all the proven features of the Basic-Check® valve developed originally by DFT® and still in use after 70 years. Like the Basic-Check® Valve, the metal-to-metal sealing area of the disc and seat is precision lapped, providing tight shutoff for applications involving liquids, gases, or steam. Resilient soft seats are available for applications requiring bubble-tight shutoff.

    Standard Features:

    • Sizes 1" thru 4"
    • ASME/ANSI Class 150 and 300
    • Stainless steel seat, disc, guard, retaining ring & spring
    • Extended tag for easy identification of the installed valve
    • Use in Schedule 40 or Schedule 80 pipe
    • Horizontal or Vertical installations
    • Meets ASME B16.34 & MSS SP-126
    • Flange finish per MSS SP-6
    • Spring-assisted silent closing

  • DLC® Flanged Check Valves

    The DFT® Model DLC® 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 DLC® provides tight shut-off and protects other equipment in the system from water hammer. Its stainless steel construction insures a long service life.
    Inconel® X-750 spring is standard

    Standard Features:

    • 1/2" to 3" Line size
    • ASME Class 150 and 300
    • Standard Body Material A351 CF8M
    • Stainless Steel Construction
    • ANSI B16.10 Face-to-Face Dimensions
    • Raised Face Flanged Ends
    • Inconel® X-750 Spring
    • Electron Beam Welded Body
    • Spring-Assisted Silent Closing, Non-Slam
    • Horizontal or Vertical Installation

  • WLC® Wafer Check Valves

    The DFT® Model WLC® Wafer Style Check Valve is a lightweight, 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 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.

    Standard Features:

    • Wafer Design
    • Center-Guided/Dual-Guided Stem
    • Horizontal or Vertical Installation
    • Spring-Assisted Silent Closing
    • Protected Spring
    • ASME Class 150 to 1500 (Contact DFT for ASME 2500 Availability)
      • 1" to 10" Line Size (Contact DFT for ASME 2500 Availability)
      • 316 SS Trim
      • Ends:
        • Wafer RF
        • Wafer RTJ
      • MSS-SP 61 Seat Leakage
      • MSS 126 Face-To-Face Dimension:
        • Class 150 & 300 RF
      • API 594 Face-To-Face Dimension:
        • Class 600 RF
        • Class 900 & 1500 RF
    • Axial Flow
    • Nozzle Style
    • Lightweight

  • ALC® Wafer Check Valves

    The ALC® Check Valve is a non-slam spring-assisted, center-guided "wafer" check valve 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 ALC® Check Valve is an easy-to-maintain check valve for applications involving liquids, gases, or steam. Can be used in horizontal or vertical installation. Tapped holes are provided in the body for lifting lugs to assist with installation (10" and larger sizes only).

    Standard Features:

    • Sizes 2" thru 24"
    • API 594 Face-to-Face dimensions
    • RF Wafer ends
    • ASME Class 150 and 300
    • Horizontal or vertical installation
    • Standard body materials:
      • A216 Grade WCB carbon steel
      • A351 CF8M stainless steel
    • Stainless steel seat, disc & bushing
    • Spring-assisted silent closing

  • Excalibur® Flanged Check Valves

    The DFT® Excalibur® Silent Check Valve is a 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 valve consists of a body, gasket, seat, spring, disc with stem and guide bushing. Excalibur® check valves are available in a wide range of sizes and pressure ratings and in a variety of metals to meet most check valve requirements.

    Standard Features:

    • 2" to 24" Line size
    • ASME Class 150 to 1500
    • ASME B16.10 Face-to-Face Dimensions
    • Standard Body Materials:
      • A216 Grade WCB Carbon Steel
      • A351 CF8M Stainless Steel
      • Other Options Available
    • Standard Ends are RF Flanged
    • Optional Ends (4): Butt Weld, Flanged x Butt Weld, RTJ, Victaulic®
    • Center-Guided / Dual-Guided Stem
    • Two-Piece Body
    • Horizontal or Vertical Installation

  • GLC® Flanged Check Valves

    The DFT® Model GLC® Silent Check Valve is a spring-assisted, center guided, in-line, flanged check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature combinations. The valve consists of a body, seat, spring, disc with stem and guide bushing. Some valves have body or gasket seals. The DFT® GLC® check valve has the advantage of minimum pressure loss with silent, non-slam operation.

    • "Short" Face-To-Face Dimensions
    • Meets API 6D
    • API 6D and API 6FA Fire Test
      • ASME Class 150 and 300
      • 2" to 24"
    • Meets API 6D
    • Standard Body Materials:
      • A216 Grade WCB Carbon Steel
      • A351 CF8M Stainless Steel
    • ASME Class 150 to 2500
      • 1" to 42" Line Size
      • 316 SS Trim
      • RF Flanged Ends
      • MSS-SP61 Seat Leakage
    • One-Piece Body
    • Spring-Assisted Silent Closing, Non-Slam
    • Center-Guided
    • Dual-Guided Stem
    • Horizontal or Vertical Installation

  • PDC® Flanged Check Valves

    The DFT® Model PDC® Silent Check Valve is specially designed for use on the discharge side of reciprocating air or gas compressors. It includes a pulse damping chamber to maintain the disc in the open position during the momentary reductions in flow associated with each cycle of a reciprocating compressor and to protect against premature seat wear.

     

    Standard Features:

    • 2" to 26" Line Size
    • ASME Class 150 to 1500
    • Standard Body Materials:
      • Carbon steel
      • Stainless steel
    • Stainless Steel Trim
    • Stainless Steel Spring
    • Ends available in RF Flanged & RTJ
    • Pulse-Damped Design
    • Horizontal or Vertical Installation
    • Center Guided Trim
    • Meets API 6D
    • ASME B16.10 Face-to-Face Dimensions
    • One-Piece Body

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

    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

    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

  • DFT® Ultra-Trol™ Flanged Abrasive Service Control Valve

    The ULTRA-TROL® is designed for lined pipe applications requiring flanged end connections. The internal design features are similar to the HI-100®. They include the in-line through ported venturi flow shape and the contained spherical ball. These basic features enable the valve to operate smoothly and efficiently at high or low temperatures and in slurries. The ball, cage and stem can be easily replaced in-line without removing the valve from the line. The downstream seat is end loaded for quick replacement.

  • SCV-R® In-Line Restrictor Check Valves

    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.

  • GLC® Cast Iron Body Check Valves

    DFT’s Cast Iron GLC® Check Valve offers minimum pressure loss performance along with silent operation. This non-slam valve is center-guided, spring-assisted, and is capable of handling a wide range of temperature/pressure combinations along with a variety of system fluids. Each valve is constructed with a body, seat, spring, disc with stem and guide bushing, and specific models are available with O-ring or gasket body seals.

    As its name implies, cast iron is the material used to create the body of the GLC® Silent Check Valve, and either bronze or 316 stainless steel is available for the trim. The valve is made with a one-piece body and “short” face-to-face dimensions. Depending on the application, both horizontal and vertical installation is possible. Not recommended for gas or steam service.

  • WLC® Cast Iron Body Check Valves

    The DFT® Model WLC Cast Iron Wafer style Silent Check Valve is a spring-assisted, in-line check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature combinations. This check valve is cast iron and face-to-face according to MSS-SP126. 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.

    The WLC® Cast Iron Check Valve is ideally suited for applications in water treatment, power generation, and other industries, though not recommended for gas or steam service. It will help to eliminate water hammer caused by double-door style check valves.

  • Vacuum Breaker Threaded In-Line Check Valves

    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