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• For heating systems with monoblock heat pumps • Protects the heat pump from freezing and allows water to drain before it reaches freezing point • Installation outdoors in the supply and return pipes is required • Opens at a medium temperature of +3°C and closes at a medium temperature of +4°C • Installation only horizontally in pipes with downward outlet • For heating operation only • External thread: flat sealing Technical data: • Operating temperature range: 0 - 90°C • Ambient air temperature: -30°C - 50°C • Max. operating pressure: 10 bar • Housing material: brass • Drain capacity: - 6 l/min (at 0.5°C and 1 bar) - 1.3 l/min (at -20°C and 0.05 bar)
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