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A Non-Return Valve allows liquid to flow in one direction only. The valve is only opened when there is a flow of water, thus if the flow stops or if there is a back flow of water the valve closes. The swing check valve operates using a hinged flat for this reason it must only be used in horizontal pipelines and it is to be placed with the arrow pointing towards the direction of flow. Valves are available with female BSP threaded connections ranging in size from ½” through to 2” on either side.



  • Installed Horizontally only
  • Ideal for Low Pressure Systems
  • BSP thread sizes from ½” to 2" BSP
  • BSP Threads in accordance with ISO228
  • Rubber Seal on Hinged Flap

Technical Data:


Fitting Material: Brass
Non Return Plate: Brass
Seal Material: Rubber
BSP Female Threads on Inlet / Outlet: ½” – 2” BSP Conforms to ISO228 (BS2779)
Maximum Temperature:  80°C
Minimum Temperature: 0°C
Max. Operating Pressure:  16 Bar