The safety group 24, DN 15 provides optimal protection against overpressure in closed domestic hot water heaters (DHW), in accordance with DIN 1988, Part 2, DIN 4753, Part 1 and DIN EN 1488. It meets the sound insulation requirements of DIN 4109 (Sound Insulation in Buildings) Class 1 and contains in a compact form all components required for equipping DHW heaters according to DIN 1988 and DIN EN 1488. The safety valve protects the downstream DHW heater and the backflow preventer prevents the backflow of heated potable water.
The safety group 24, DN 15 consists of a shut-off valve, backflow preventer, manometer connection, diaphragm safety valve, and discharge funnel. The easily replaceable diaphragm safety valve with a wear-resistant stainless steel seat can be rotated 360 degrees via a screw connection to adapt to different installation conditions. Screw connections with R ½.
Technical data:
Inlet pressure: 10 bar according to DIN EN 1488
Operating pressure: max. 80% of the response pressure of the safety valve
Operating temperature: max. 30°C inlet temperature
Max. nominal capacity DHW: 200 liters
Response pressure: Factory setting: 6 bar
Medium: Potable water
Component test no.: TÜV-SV-20-545-DN-W-p
Installation position: any
Flow rate: DN 15: 2.0 m³/h at ∆p 1.0 bar
ABP no.: PA-IX 1794/I
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