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Non Return Valves - Hydromine

Supplier: Dual Valves Australasia playlist_addCompare

The 'IT' non-slam check valve prevents back flow while minimising the water hammer effect during the valve’s closure.

Price Guide (Inc GST): POA

Principle of operation

The 'IT' non-slam check valve:

  • Instantaneously opens when the pump starts working
  • Gradually closes at a speed controlled by the valve speed control orifice
  • While closing, gradually reduces the flow through the valve
  • Utilises a spring to ensure a valve closed position
  • Can be installed in a horizontal or vertical position

Long life, low maintenance

The 'IT' non-slam check valve is powder coated on all moving surfaces to minimise corrosion and prevent scale build-up. The valve's shuttle is suspended on Vesconite bushes (green marked sleeves). This material composition provides excellent support and prevents scale build-up which prevents the valve from jamming.

Spring-loaded shuttle

The 'IT' non-slam check valve's spring maintains a closed valve position when the valve's upstream is empty. The spring also assists the closing function on reverse flow conditions.

Closing speed

The 'IT' non-slam check valve speed is determined by the speed control orifice. Decreasing the orifice size slows down the closing speed and vice versa.

Valve length

The 'IT' non-slam check valve face-to-face dimension could be increased if requested by the client.

Materials and specifications

Contact the manufacturer or distributors for details, or please click here.

Dimensions and rating

  • 25NB (1") - 600NB (24")
  • 10 bar (147 psi) - 250 bar (3675 psi)

Valve ends

  • Flanges – SABS 1123, BS4504, BS10, ASME B16.34
  • Couplings – tapered shoulders and other pipe


For more information or a quote on Non Return Valves - Hydromine please contact call or email for a direct reply. 

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