Steam safety valve 851bH series

for hot waterthreaded

High performance safety valve with bellows, made of high quality, corrosion-resistant gunmetal. For the protection of: - thermostatically protected closed-circuit water heating systems with flow temperatures of up to 120°C for all static heights or rated output above 350 kW according to TRD 721, DIN 4751 and DIN EN 12828. - Should the thermostatic limiting and control unit fail, the safety valve has to blow-off the total heating output of the boiler as hot water and steam. - closed-circuit solar heating plants according DIN 4757-1 und 2 with flow temperatures up to 120°C for all static heights. - district heating sub-stations, district heating building substations and domestic systems suitable for connection to a hot water district heating network according to DIN 4747-1 and AGFW 505. - heating systems for building technology and industrial applications - co-generation plants (CHP) - biogas plants - district heating transfer stations, building sub-stations - solar plants