651mHIK Safety valves with diaphragm made of gunmetal, all-metal construction angle type with threaded connections Goetze

651mHIK Safety valves with diaphragm made of gunmetal

Rugged safety valve with membrane featuring an all-metal construction.


Designed to protect hot water and heating systems. Due to this unparalleled design, which contains no plastic parts, these valves are also suitable for very high outdoor temperatures.

For the protection of:

• Thermostatically protected water heating systems with closed circuits with supply temperatures up to 120 °C. Not allowed in Germany.

If the thermostatic limiting and control unit fails, the safety valve must discharge the total heating power of the boiler as hot water and steam. Because these valves are entirely made of metal, they can also be installed at high ambient or radiation temperatures.

Safety valves are factory-set and sealed.