Safety fittings for water supply in the
building technology sector Series 651mWIK

Rueckruf EN

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Safety valves with diaphragm made of gunmetal, angle type with threaded connections

651mWIK with inlet and outlet diameter equal.
Particularly in the case of valves which are employed in potable water installations, we do not accept any compromises regarding the materials used. Only the highest quality materials suitable and approved for potable water applications are used in these valves. These types of safety valves with diaphragm are installed in the cold water pipe before the hot water heater to protect it from inadmissible overpressure.

  • Examples of use
  • Approvals
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For the protection of:

  • closed circuit water heaters for drinking water and process water.

The safety valve is installed in the cold water inlet of the hot water heater.

Not permitted in Germany.

  • water heaters for potable and process water and -storage tanks

Safety valves are set and sealed at the factory.


European Pressure Equipment Directive

TR ZU 032/2013 - TR ZU 010/2011

TSG ZF001-2006


PED 2014/68/EU

Suitable for
1/2" - 2"
- 10°C to + 95°C
3,0 - 10 bar
Data sheet/Capacity table