Hey Ira (and all), One thing I notice is that my brew pressure gauge climbs at idle to about 10 bar, then the OPV drain starts to dribble. That gives me a good idea that I'm set to roughly 10 bar on the OPV. However, I am wondering whether this is normal for the system to be sitting at that high of a pressure when idle? I don't recall that with the vibe, though I seem to recall Todd saying that it is pretty normal. I just wonder about the long term prospects for that teflon line when it sits at 140 psi all the time.
b On Mar 13, 2011, at 11:42 AM, Benjamin McCafferty wrote: > OK, found it based on that article. > > For the archives-- > > The screw points towards the boilers, and is all brass with a brass locknut. > The locknut is 14mm, the adjuster screw is 10mm. Clockwise/tighter gives > more pressure, counter-clockwise/looser gives less pressure. About 1/4 turn > is about 1/2 bar. You can just get a box end wrench or small socket on the > adjuster. > > With the pump running, I was able to quickly set the pump to 9 bar with a > blind pf, then I opened the OPV until water was flowing from the drain tube > into the drip tray. I then slowly closed the OPV until the water stopped > flowing, and then closed the OPV another 1/2 turn. This seems like it will > give some protection for the boiler lines, i.e. OPV should open just above 9 > bar should the pump ever malfunction. > > Thanks again Ira. > > bmc > > On Mar 13, 2011, at 11:03 AM, Benjamin McCafferty wrote: > >> Oops, might have just found the answer: >> >> http://www.home-barista.com/expobar-brewtus-iii-review-workmanship.html >> >> bmc >> >> On Mar 13, 2011, at 10:11 AM, Ira wrote: >> >>> At 09:41 AM 3/13/2011, you wrote: >>>> Further to yesterday's posts on the rotary upgrade, is there any >>>> adjustment on the rotary pump that will allow an increase of its max >>>> pressure? With OPV screwed in all the way, it only attains 8 bar. I >>>> prefer 9 bar with the blind PF, 8.5 when pulling. >>> >>> There should be a screw on the pump to set pressure and the OPV should be >>> set to 12 or so to actually handle an OPV problem if the pressure relief in >>> the pump has an issue. >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Brewtus" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]. >>> For more options, visit this group at >>> http://groups.google.com/group/brewtus?hl=en. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Brewtus" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/brewtus?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Brewtus" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/brewtus?hl=en. > -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/brewtus?hl=en.
