Non-Slam, Center Guided, Axial Flow Check Valve

Product Announcement from DFT Inc.


The DFT® Excalibur Silent Check Valve is a spring-assisted, center guided, axial flow, 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, gasket, seat, spring, disc with dual guided 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.


Valve Features:

 • Axial flow

 • Nozzle style

 • ASME B16.10 Face-to-Face dimensions

 • Spring-assisted silent closing, non-slam

 • 2” to 24” Line size

 • ASME 150 to 1500 (See chart)

• Standard body materials:

   - A216 Grade WCB carbon steel

   - A351 CF8M stainless steel

 • Optional body materials:

   - Alloy 20

   - Duplex SS

   - Hastelloy®

   - Inconel® 600

   - Monel®

   - Nickel-Aluminum Bronze (NAB)

 • Standard ends:

   - RF Flanged

 • Optional ends (4):

   - Butt weld

   - Flanged x Butt weld

   - RTJ

   - Victaulic®

 • Stainless steel trim

 • Center-guided

• Dual-guided stem

• Horizontal or vertical installation

 • Tight shutoff

 • Two-piece body

 • Protected spring

 • Easy maintenance

 • Versatile

 • Options:

   - Soft seat

   - Inconel® X-750 Spring

   - Custom sizing low flow

   - Severe service trim

   - Stellite trim (600°F+)

   - NACE


Click here to see DFT Videos and how the Excalibur compares to a swing check valve.

For a detailed Excalibur product pdf - click here

Contact us:   


Phone:    610-363-8903

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