NON REFLUX VALVE

Valves

Coating: RAW

Available Size: 1/2" - 12"

🔎 What It Is:

A Non-Reflux Valve is a one-way valve designed to allow fluid (liquid or gas) to flow in one direction only and prevent backflow. It automatically closes when the flow reverses, ensuring the system stays protected from reverse pressure or contamination.

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Specifications:

• Type Variants

  Swing Type – Hinged disc swings open with flow, closes with backflow
  Lift Type – Disc moves vertically to open/close
  Wafer Type – Compact, fits between flanges
  Ball Type – Uses a ball to block reverse flow
  Spring-Loaded (Silent Type) – Closes quietly with a spring assist

• Size Range

  ½” to 24” (or larger on request)

• Pressure Ratings

  PN10, PN16, Class 150, 300

• End Connections

  Flanged, Screwed (BSP/NPT), Socket Weld, Butt Weld

• Body Materials

  Cast Iron, Ductile Iron
  Carbon Steel, Stainless Steel (SS304/316)
  Bronze, Gunmetal
  Disc/Seat Materials: Metal-to-metal, EPDM, Nitrile, PTFE

Features:

• Prevents backflow automatically without external actuation
• Ensures pump protection and system integrity
• Operates silently (spring-loaded types)
• Simple installation and maintenance
• Can be mounted horizontally or vertically (depending on type)

Applications:

• Water supply and distribution lines
• Pump discharge lines
• Boiler feed systems
• Chemical and process piping
• Oil & gas and HVAC systems
• Fire protection networks