AS54 Non-return valves

The cone diaphragm check valves from Lasso Technik AG are FDA-compliant, designed for up to 16 bar and suitable for cold and hot water. They can also be used for oily liquids, gaseous, pasty or sandy media as well as acids and bases.

A backflow preventer not only protects the drinking water system in the house, but also the supply network outside, as the drinking water in the house could potentially be contaminated. In the event of damage, it prevents contaminated water from entering the supply network and endangering other water consumers.

A special feature of the diaphragm non-return valves is the silent and gentle closing of the diaphragm. Water hammer effects are greatly reduced, thus protecting the system. The diaphragm guarantees secure closure and seals reliably even with granular or contaminated media.

In addition, the valve cones act as coarse filters to protect pumps and systems. As the conical diaphragm valves have no mechanically moving parts that could wear out, they offer a long service life.
The valves consist of a valve cone made of stainless steel 1.4404 and a soft rubber diaphragm.

They can be installed either vertically or horizontally. As standard, the valves come with an EPDM diaphragm that is approved for drinking water.