The safety group is suitable for pressure-resistant, closed wall-mounted storage tanks and above-counter small storage tanks. It consists of the following components: pressure reducer, safety valve, shut-off valve, non-return valve, funnel siphon, rosette, and chrome-plated connection accessories. Comfort features: The overpressure safety valve prevents the permissible operating pressure of the hot water storage tank from being exceeded. Additionally, the safety group is equipped with a pressure reducer. The non-return valve ensures that no heated drinking water flows back into the piping system. The expansion water is discharged into the drain line via the funnel siphon with rosette. Installation: The safety group is installed according to specifications before the hot water storage tank in the cold water supply line. For quick and easy maintenance, the safety valve can be vented using a rotary handle. Excessive inlet pressure of the cold water is reduced to the required system pressure by the pressure reducing valve. The cold water supply can be shut off via the shut-off valve after installation, for example, of the hot water storage tank, allowing for service-friendly maintenance work. The individual components of the safety group can be replaced. Safety: The safety group is made of a high-gloss, chrome-plated brass housing. It is manufactured with low lead content and is DVGW tested. The safety valve is component-tested. The connection pipes are made of chrome-plated copper pipe. The plastic parts comply with the KTW recommendation. KV 40.