We are introducing the new CSA development: the air valve FOX 3F HR ; a new generation of surge arrestor designed to protect boosted water risers from the potentially destructive effects of surge and water-hammer following an interrupted power supply.
This new technology combines the exclusive CSA AS model with adjustable orifices and the RFP concept, providing a unique model on the market drowning proof and with double anti-slam capacity. The product guarantees for high performances and a pressure sealing at 0,15 bar (lower on request) for an increased reliability
More info here.