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Brew pressure measurement on the cheap

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  • #16
    Re: Brew pressure measurement on the cheap

    Just a thought...

    How about combining this idea with a bottomless PF?

    You could then have a large pipe to the gauge as you have (which will reduce any lag in pressure reading) - and if you could find a small enough gauge, this could be passed through the opening in the PF as well.

    PS... is that water behind the glass on the face of the gauge?

    Comment


    • #17
      Re: Brew pressure measurement on the cheap

      Even better! (bout time you popped up JB, where u been?) Then you can use either regular or bottomless PF.

      I reckon its one of those oil-filled gauges for special applications. Not sure what exactly but I think Ive seen them before.

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      • #18
        Re: Brew pressure measurement on the cheap

        I was thinking why is there water in the gauge too... Then i thought maybe it should have water in it after a reading.

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        • #19
          Re: Brew pressure measurement on the cheap

          I saw that ready made job at Coffee Parts after I posted my question.
          Summing up the price of a guage and a spare PF Handle to attach it to, the ready made is the way Id go.

          Comment


          • #20
            Re: Brew pressure measurement on the cheap

            Originally posted by Greg Pullman link=1175222260/15#16 date=1175256560
            Even better! (bout time you popped up JB, where u been?) Then you can use either regular or bottomless PF.

            I reckon its one of those oil-filled gauges for special applications. Not sure what exactly but I think Ive seen them before.
            I think oil-filled gauges are used where there is a violent influx into the gauge ... allows the needle to climb without hitting the bell like a big bagatel?

            Comment


            • #21
              Re: Brew pressure measurement on the cheap

              Originally posted by Greg Pullman link=1175222260/15#16 date=1175256560
              Even better! (bout time you popped up JB, where u been?)
              Lets see....

              1. Visitors from London....
              2. Someone pinching my power fuses requiring two days of scrounging the demolition yards for replacements....
              3. Building a box to prevent above happening again!
              4. Studying for my Skippers Ticket theory test (had a practical exemption which expires on 1st April)
              5. Roasting and drinking coffee..... ;D ;D

              I reckon its one of those oil-filled gauges for special applications. Not sure what exactly but I think Ive seen them before.
              Yep, that could be it.... although what appear to be bubbles on the surface had me a bit tossed (and I though they were almost totally full of oil - otherwise the air in them just compresses too easily and reduces the damping)

              Comment


              • #22
                Re: Brew pressure measurement on the cheap

                Sorry for the lag in reply curious CS’rs. Glycerine filled gauge was the answer to the question.

                I nearly always use these type of gauges as they are more reliable, fail less and tend to read with more accuracy. For whatever manufacturing reason they are rarely full to the brim and don’t need to be. The glycerine is all around the gizzards of the gauge which acts as a shock absorber both to actuation of the needle and… well… shock (drop, knock etc).

                Once upon a time I raced motorcycles and the vibration would destroy every gauge put on it. At that time I found these and for only a few dollars more they are the only ones I use now.


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                • #23
                  Re: Brew pressure measurement on the cheap

                  Originally posted by Andy Freeman link=1175222260/15#21 date=1175264874
                  Sorry for the lag in reply curious CS’rs. Glycerine filled gauge was the answer to the question.

                  I nearly always use these type of gauges as they are more reliable, fail less and tend to read with more accuracy. For whatever manufacturing reason they are rarely full to the brim and don’t need to be. The glycerine is all around the gizzards of the gauge which acts as a shock absorber both to actuation of the needle and… well… shock (drop, knock etc).

                  Once upon a time I raced motorcycles and the vibration would destroy every gauge put on it. At that time I found these and for only a few dollars more they are the only ones I use now.

                  Thanks for he explanation Andy.

                  Had told my partner when joining here that the guy whow owns the site looks like an old biker Old as in previous...notas in old, old...you know what I mean lol.

                  Do you still ride, or do you only drop the gauges these days?

                  Comment


                  • #24
                    Re: Brew pressure measurement on the cheap

                    Hey fellas,
                    Ive done the same thing with a gauge on my boema, have upped the adjuster on the pump, so the flow is good but pressure still not there, is there somewhere else i should be adjusting to upp the pressure at the head?

                    Comment


                    • #25
                      Re: Brew pressure measurement on the cheap

                      Originally posted by 5758524F360 link=1175222260/21#21 date=1175264874
                      Sorry for the lag in reply curious CS’rs.  Glycerine filled gauge was the answer to the question.  

                      I nearly always use these type of gauges as they are more reliable, fail less and tend to read with more accuracy.  For whatever manufacturing reason they are rarely full to the brim and don’t need to be.  The glycerine is all around the gizzards of the gauge which acts as a shock absorber both to actuation of the needle and… well… shock (drop, knock etc).

                      Once upon a time I raced motorcycles and the vibration would destroy every gauge put on it.  At that time I found these and for only a few dollars more they are the only ones I use now.

                      For the exact same reason you listed is why I and most people I know use liquid filled gauges in our project/modified/track cars! Most automotive are liquid filled from what I can tell these days anyway. Unless your going electronic.

                      Comment


                      • #26
                        Re: Brew pressure measurement on the cheap

                        I made something similar some time ago, after myself and another CSr had to adjust brew pressures on our Silvia.,
                        Also added a small valve so I could flow water through at similar rate to brewing, as there is some difference to dead head pressure and brewing pressure with water flow through the PF,
                        nevertheless a good way to check where you are at.
                        We both found improvement in the cup with brew pressure around 9 bar compared to the 11-12 we previously had.

                        Comment


                        • #27
                          Re: Brew pressure measurement on the cheap

                          Originally posted by 123338383F25560 link=1175222260/19#19 date=1175257065
                          hitting the bell like a big bagatel?
                          Penny Arcade.

                          Comment


                          • #28
                            Re: Brew pressure measurement on the cheap

                            Originally posted by 58646D7560010 link=1175222260/26#26 date=1285039180
                            "hitting the bell like a big bagatel?"
                            Penny Arcade.
                            The Big O (Roy Orbison). From memory, the song continues (with American spelling) "...and youll make all the colored lights go gay"
                            (not that theres anything wrong with that, mind you)

                            Feeling nostalgic Jon? Responding to an older post an old thread about an old song.

                            Comment


                            • #29
                              Re: Brew pressure measurement on the cheap

                              Originally posted by 555F4A5D5D524640330 link=1175222260/27#27 date=1285040046
                              Responding to an older post an old thread about an old song.  
                              Just rang a bell, no pun intended
                              Originally posted by 555F4A5D5D524640330 link=1175222260/27#27 date=1285040046
                              "...and youll make all the colored lights go gay"
                              Always thought that was a pretty weird line, even when the song was in its hay day, surely they could have done better than that? perhaps not. :-/
                              Originally posted by 555F4A5D5D524640330 link=1175222260/27#27 date=1285040046
                              Feeling nostalgic Jon?
                              Not really, Bullitt bought the thread to life again with his post.

                              Comment


                              • #30
                                Re: Brew pressure measurement on the cheap

                                Originally posted by 0D31382035540 link=1175222260/28#28 date=1285043538
                                surely they could have done better than that?
                                To quote(?) John Lennon "It just rhymes".

                                Comment

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