• 1/2” to 3” line size
• ASME class 150 and 300
• RF flanged ends
• ASME B16.10 face-to-face dimensions
• Stainless steel construction
• Inconel® X-750 spring
• Electron beam welded body
• Edge-guided disc
• Spring assisted silent closing
• Tight shutoff – lapped disc & seat
• Horizontal or vertical installation
• Simplified 4-part construction
• Versatile
• Options:
  • Alloy 20 or Hastelloy® C body
  • 316 SS spring
  • Soft seat (TFE-Viton® only)

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.    

Excalibur® Silent Check Valve

• 2” to 24” line size*
• ASME class 150 to 1500
• RF & RTJ flanged ends, butt weld ends
• ASME B16.10 face-to-face dimensions
• Standard Body Materials:**
  • A216 WCB carbon steel
  • A351 CF8M stainless steel
• Stainless steel trim
• Center-guided/dual-guided stem
• Spring assisted silent closing, non-slam
• Tight shutoff – lapped disc & seat
• Two-piece body
• Horizontal or vertical installation
• Protected spring
• Axial Flow
• Nozzle style
• Easy maintenance
• Versatile
• Options:
  • Inconel® X-750 spring
  • Soft seat
  • Custom sizing for low flow applications
  • Stellite® trim
  • NACE

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.   

GLC® Silent Flanged Check Valves

• 2” to 42” line size*
• ASME class 150 to 2500
• RF & RTJ flanged ends
• “Short” face-to-face dimensions
• API 6FD Fire Test
  • ASME class 150 and 300, 2” to 24”
• Standard Body Materials:**
  • A216 WCB carbon steel
  • A351 CF8M stainless steel
• Stainless steel trim
• Center-guided/dual-guided stem
• Spring assisted silent closing
• Tight shutoff – lapped disc & seat
• Horizontal or vertical installation
• Protected spring
• Axial Flow
• Nozzle style
• Easy maintenance
• Versatile
• Options:
  • Inconel® X-750 spring • Soft seat
  • Custom sizing for low flow applications
  • Stellite® trim • NACE

Not Sure

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.

PDC® Flanged Check Valves

• Pulse-damped design for modulating “air” or “gas” applications
• Discharge of reciprocating air/gas compressors
• Self-sizing
• 2” to 20” line size*
• ASME class 150 to 1500
• RF & RTJ flanged ends
• ASME B16.10 face-to-face dimensions
• Standard Body Materials:**
  • A216 WCB carbon steel
  • A351 CF8M stainless steel
  • A352 LCC low-carbon steel
• Stainless steel trim
• Center-guided/dual-guided stem
• Spring assisted silent closing, non-slam
• Tight shutoff – lapped disc & seat
• Horizontal or vertical installation
• Protected spring
• Axial Flow
• Nozzle style
• Easy maintenance
• Options:
  • Inconel® X-750 spring
  • Soft seat
  • NACE