Ball check valve

flangebackflowsanitary

DISCOBLOC BA Protect a drinking water network against any risk of pollution due to a possible backflow of contaminated fluid. This return may be caused by a pressure drop in the network or a back pressure from a potentially non-potable water network. To be installed at the point at which the drinking water is supplied, after the water meter, for protecting the public network in case of installations which are complex, dangerous and difficult to check: chemical products or metal treatment plants or hospitals. On a drinking water network for protecting water supply points for sanitary use: wash-basins, showers or kitchens for example. CHARACTERISTICS Controllable device with pressure taps for upstream, downstream, and intermediate pressure. Security guard air through air inlet valve in the event of upstream depression. Head loss within the requirements of the standard.