Gruppi di sicurezza Honeywell
Honeywell SG safety groups of these types are used as protection of pressurised water heaters. They are compact appliances which incorporate all the necessary safety fittings such as check valve, shut-off valve, test point and diaphragm safety valve in one unit. The safety valve protects the downstream water heater by automatically opening and closing. The check valve prevents back pressure, backflow and back siphonage of contaminated water.
