Non-Slam Check Valves for Harsh Environments

Featured Product from DFT Inc.


The DFT® GLC® and Excalibur® NAB (Nickel-Aluminum Bronze) Silent Check Valves are spring-assisted, nozzle style, non-slam check valves that are designed to withstand the harsh environments of salt and brine water applications where corrosion resistance and marine life deterrents are a must. DFT's center guided check valves provide reliable, low-maintenance service and solve the problems associated with water hammer and severe applications and environments.


GLC® – NAB FEATURES:

  • “Short” Face-to-Face dimensions
  • API 6FD Fire Test
    • ASME 150 and 300
    • 2” to 24”
  • Standard body materials:
    • Nickel-Aluminum Bronze
  • One-piece body
  • Spring-assisted silent closing, non-slam
  • Center-guided
  • Dual-guided stem
  • Horizontal or vertical installation
  • Protected spring
  • Easy maintenance
  • Versatile
  • ASME 150 To 2500
    • 1” to 24” Line size
    • RF Flanged ends
    • MSS-SP61 seat leakage
  • Axial flow
  • Nozzle style
  • Options:
    • Inconel® X-750 Spring
    • Soft seat
    • Custom sizing low flow
    • Severe service trim
    • Stellite trim
    • RTJ Ends
    • NACE
  • Trim Options:
    • Nickel-Aluminum Bronze
    • Monel®
    • Stainless Steel
    • Duplex SS

Excalibur® – NAB FEATURES:

  • ASME B16.10 Face-to-Face dimensions
  • Spring-assisted silent closing, non-slam
  • 2” to 24” Line size
  • ASME 150 to 1500
  • Standard body materials:
    • Nickel-Aluminum Bronze
  • Standard ends:
    • RF Flanged
  • Optional ends:
    • Butt weld
    • Flanged x Butt weld
    • RTJ
    • Victaulic®
  • Center-guided
  • Dual-guided stem
  • Horizontal or Vertical installation
  • Tight shutoff
  • Two-piece body
  • Protected spring
  • Easy maintenance
  • Versatile
  • Axial flow
  • Nozzle style
  • Options:
    • Soft seat
    • Inconel® X-750 Spring
    • Custom sizing low flow
    • Severe service trim
    • Stellite trim
    • NACE
  • Trim Options:
    • Nickel-Aluminum Bronze
    • Monel®
    • Stainless Steel
    • Duplex SS

 Contact us:

dft@dft-valves.com

610-363-8903

About DFT Inc.

DFT® Inc. manufactures world class, problem-solving, in-line, axial flow, nozzle style silent check valves and severe service control valves. Whether it is "in stock", or a "custom engineered, special order", the DFT® sales and engineering staff will respond quickly to your requirements. DFT® is the only company that specializes in a broad spectrum of spring assisted, in-line silent check valves with materials ranging from ductile iron to exotic alloys, and are Made in America.

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 ISO9001-2000 quality management system. For more than 70 years DFT has solved check valve problems, prevented check valve failure and water hammer and solved severe service control valve problems.