651 mHNK VA

For the protection of thermostatically protected closed-circuit water heating systems with flow temperatures of up to 120°C 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. Thanks to the all-metal design these safety valves can also be installed in cases of high environmental or radiation temperatures

  • heating systems for building technology- and industrial applications
  • co-generation plants (CHP)

Safety valves are set and sealed at the factory.

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