These unique CPV valves control hazardous pressure surges and water hammer much more effectively than traditional swing check valves.
A specially engineered stainless steel helical spring enables instant closing at zero flow velocity, preventing pressure build-up when reverse flow begins.
CPV Silent Check Valves are available with:
• Metal-to-metal seats (for general service)
• Soft seats (for bubble-tight sealing up to 250°F / 121°C)
✅ Product Range
• Available in a wide variety of styles and materials
• Sizes from ½” NPT to 24” flanged
• Pressure ratings from 125 to 2500 psi
✅ Applications
Ideal for systems like:
• Heating systems
• Condensate return lines
• Pressures up to 300 psi
✅ Design Options
• Standard: soft-seated closure disc (rated to 250°F / 121°C)
• Optional: stainless steel disc (up to 350°F / 177°C)
• Material options:
– Bronze body, union nut, tail piece
– Stainless steel: guide, retaining ring, spring (Catalog 36)
– Steel body + stainless steel disc (Catalog 34)
– All stainless steel, type 18-8 (Catalog 37)
• NPT sizes from ½” to 2”