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Anti Pollution Valves

Anti Pollution Valves

Pipe interrupters are safety devices designed to protect potable water systems.

The function of a pipe interrupter is to prevent the backflow of non-potable water in potable water systems by automatic ventilation of the system and elimination of the vacuum. This is only achieved if after the pipe interrupter no shut-off devices are installed in direction of flow. Pipe interrupters are only flushed when water is flowing

This device has a moving element which seals the ventilation gaps during normal flow conditions. When negative pressures occur on the inlet side which could cause siphonage, the membrane retracts seals the flow ports and simultaneously vents the outlet side of the pipe interrupter.

  • WRAS approval to be used on all potable water applications
  • O Rings EPDM
  • In compliance with: BS EN1717
  • Pressures up up to 10 bar and temperatures up to 60°C.

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