Heating valve 4b F3/4" thumb wheel - GOETZE : 651MHIK-20-F/F-2 4B

Series 651 mHIK Bronze membrane safety valves, square, with threaded connections for closed circuit heating installations. For installations with an operating regime between -10°C and +120°C EPDM gasket: resistance from -10°C to +120°C (resistant up to 100% glycol) In the event of a failure of the temperature regulation and limitation device, the safety valve must discharge all heat output from the boiler in the form of hot water and steam. Due to their all-metal version, these safety valves can even be used in high-temperature environments or in the vicinity of a heat source:
Heating installations in industry and building Cogeneration units
Safety valves are calibrated and sealed by the component manufacturer. Heat discharge rates are given for a rating overrun of 0.5b
Authorisations: Examination certification CETSG ZF001-2006TR ZU 032/2013 - TR ZU 010/2011 Compliant with DESP 2014/68/EU