Air Relief valve

Reference : 152

The SNH Air valve for sea water protects sewerage pipework by evacuating the air which is trapped at high points. Using this valve makes it possible to make savings when laying pipe networks.


Fabrication in "Duplex" on demand.

Specification leaflet available on demand.

In fact, when this air valve is used, the pipework can follow the relief of the land (as with drinking water) avoiding extra cost for laying pipes at great depths (reinforced trenches, lowering of ground Water level, ect.) Which are necessary for following a regular pipework profile.

Model with 3 functions

  • Air outlet at high flow rate (filling pipework)

  • Air purge under pressure (pipework under normal service conditions)

  • Air inlet at high flow rate