Straight brass safety group for water heater, storage tank - 20x27 or 3/4"

Precise setting value at 7 bar. Available with 3/4" (20x27) thread. More resistant to aggressive or very soft water. Improved internal flow rate. Reduced pressure loss. This safety group is suitable for chemically neutral water. Installation tip: Install a pressure reducing valve upstream of the safety group if the supply pressure exceeds 5.25 bar. It is recommended to mount the safety group on the cold water inlet of the water heater or storage tank with a dielectric fitting to prevent corrosion of the safety group.