The DFT^® model PDC^® check valve is a silent, non-slam check valve 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.

Features:

• 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

*consult TFC for larger sizes
**consult TFC for additional alloys