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Finding the over-pressure valve on Bezzera BZ09

Postby misterpieter on Fri Mar 23, 2012 9:10 pm

Can anyone help me locate the OPV on the BZO9?
(i find the underpressure-, 3-way-, 'everyway-' and 'everything', but no OPV...)

http://www.bezzera.it/pdf/42-en-BZ09_9942040.03_GB_ed02.12_rev00.pdf

thnx
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Postby kize on Fri Mar 23, 2012 9:49 pm

On the Diagram- I see what they label as a surpression valve with 2 calibrated springs rated @12 bar and a 3 way valve.
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Postby erics on Fri Mar 23, 2012 10:25 pm

Stan's correct - turn item 6 in table 2 of the pdf until you get the pressure you want. A suggestion would be to put a blind filter in the group and adjust to 9.0 bar.

I suspect you will be happy. :)
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Postby misterpieter on Sat Mar 24, 2012 6:49 am

we (my colleague and me) thought so too..
But when an other barista said that the suppression valve was an other valve, (i think his explanation was: 'releases the pressure from the boiler when this cools down') we weren't too sure anymore..

please confirmation that the BEZ's 'suppression valve' = 'overpressure valve'

thnx
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Postby erics on Sat Mar 24, 2012 9:26 am

please confirmation that the BEZ's 'surpression valve' = 'overpressure valve'

That's correct.
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