AXIAL FLOW NON-SLAM CHECK VALVE

Silent Operation & Advanced Pump Protection

IO Valves Axial Flow Non-Slam Check Valves are designed to prevent reverse flow and eliminate water hammer in pumping and pipeline systems. The axial flow design ensures smooth, streamlined flow with minimal head loss, while the spring-assisted disc enables rapid, non-slam closure before flow reversal occurs. These valves are particularly suited for pump discharge applications where system stability, equipment protection, and quiet operation are critical.

Material of Construction

Body / Disc / Guiding Body : Ductile Iron

Shaft : Stainless Steel (X20Cr13)

Seat Ring : Stainless Steel Weld Overlay

Seal : EPDM (Food Grade)

Spring : Stainless Steel SS 304 / SS 316

Nuts : Bronze

Coating : Epoxy Powder Coating ≥ 250 μm

• Non-slam, silent closing operation

• Spring-assisted disc for rapid response before flow reversal

• Axial flow path with minimal head loss

• Reduced surge and water hammer effects

• Compact, lightweight design compared to conventional check valves

• Suitable for high-velocity and variable flow conditions

• Low maintenance and long service life

Key Features

Design & Testing Standards

• Installation: Horizontal or Vertical

• Medium: Water

• Operating Temperature: –10 °C to +80 °C

• Flange Drilling: EN 1092-2

Size Range

DN 50 – DN 1000

Pressure Rating

PN 10 / PN 16/ PN 25/ PN 40

Municipal & Industrial Water System

Rising mains & pumping stations

Water Treatment Plants (WTPs)

Water transmission pipelines

Typical Applications

DUAL PLATE CHECK VALVE

SWING CHECK VALVE