Watts 7bar Pressure Relief Valve With Female, Male G 3/4 in G, 3/4 in G Connection - 2252570

SFR 3/4”; Stainless steel for calcareous, hard and aggressive waters: This « top-of-the-range », safety group features a stainless steel seat to prevent corrosion from impairing the valve seal. SFR Stainless steel is recommended especially where water is aggressive, hard or even calcareous.Advantages: Fast filling rate of more than 4000 L/h under 1 bar. Less head loss, greater convenience for users. Valve knob designed for excellent grip. New valve seat limits risk of leaks by efficient clearance of foreign matter. Dimensions make the group interchangeable with the major safety groups on the market. Swivelling air gap designed to protect the wall from water splashes regardless of the type of mounting. For hot water storage heaters up to 10 kW maximum useful power.