PURUS PUM – Universal Membrane

PUM – Purus Universal Membran

PUM – Purus Universal Membrane, is a new revolutionary membrane which stops bad air to come up through the drainage system. The new technique saves space without reducing the flow capacity and is also functioning as an air admittance valve when there is a negative pressure in the drainage system (secondary air ventilation). This gives much better flow in the drainage pipe. PUM works also to a certain extent as a back flow stop. PUM function is approved by SITAC and test performed at SP.

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