Sirai Commercial Boiler Pressurestat
Heavy-duty Sirai mechanical pressurestat for prosumer and commercial espresso machines.
Pressurestats control the pressure (and by extension) the temperature of your espresso machine boiler. THey usually contain an adjusting screw to vary the boiler pressure within acceptable limits. The Sirai and Parker are nearly universal in their use on many commercial machines and include a new grommet kit. Both contain 3 poles (contacts) Rated for both 110-120V and 220-250V.
The Industry standard Sirai pressurestat is used by numerous Commercial machine manufacturer's and uses the industry standard 1/4 thread. Replace when contacts are heavily arced or pressure variation exceeds 2 Bar.