COMFORT Safety Center DN 20 LF A25 with Expansion Tank 18 Liters

The comfort safety center DN 20 A25 serves to protect closed potable water heaters (PWH) with a maximum capacity of 560 l, in accordance with DIN 1988, Part 2, DIN 4753, Part 1, DIN 4807, Part 5, and DIN EN 1488. The comfort safety center DN 20 A25 contains all components required for the inlet-side equipment of PWH according to DIN 1988 and DIN EN 1488. The equipment also includes a flow-through fitting with integrated maintenance shut-off and a flow-through diaphragm expansion vessel (DEV) with 18 l nominal volume in a compact design. The housing is made of lead-free brass. The comfort safety center DN 20 A25 includes a backflow preventer, a double shut-off with integrated testing possibility for the backflow preventer, a safety valve with stainless steel seat and drain funnel, a flow-through fitting with integrated maintenance shut-off for the DEV, and a wall bracket for fixation. The special design of the group allows installation as an corner and straight-through version in horizontal and vertical pipes. The diaphragm safety valve can be rotated by 360° to adapt to different installation conditions. The wall bracket enables safe and time-saving installation. The additional replacement cartridges (8 and 10 bar) for the safety valve included in the scope of delivery allow adaptation to different potable water heater volumes and maximum operating pressures. Technical data: Inlet pressure: 10 bar Operating pressure: max. 80% of the set pressure of the safety valve Operating temperature: max. 30 °C Medium: Potable water Set pressure: 6, 8, 10 bar with enclosed cartridges Installation position: any Flow rate: 2.0 m³/h at Δp 0.2 bar 4.0 m³/h at Δp 1.0 bar Connection size: DN 20