Finding the over-pressure valve on Bezzera BZ09

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misterpieter
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Real Name: Pieter
Equipment: Bezzera BZ09 / MACAP MXK / Aeropress / Hellem
Location: Belgium,Antwerp

Postby misterpieter » 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
Belgium: Brussels, Antwerp, Ghent, '(In) Bruges', and: BEER!

kize
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Real Name: Stan
Equipment: Alex Duetto II, Baratza Vario
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Postby kize » 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.

let us help you find the right gear
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erics
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Postby erics » 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. :)
Skål,

Eric S.
http://users.rcn.com/erics/
E-mail: erics at erols dot com

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misterpieter
Posts: 27
Joined: Sun Feb 19, 2012 8:34 am
Real Name: Pieter
Equipment: Bezzera BZ09 / MACAP MXK / Aeropress / Hellem
Location: Belgium,Antwerp

Postby misterpieter » 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
Belgium: Brussels, Antwerp, Ghent, '(In) Bruges', and: BEER!

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erics
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Postby erics » Sat Mar 24, 2012 9:26 am

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

That's correct.
Skål,

Eric S.
http://users.rcn.com/erics/
E-mail: erics at erols dot com