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Thread: OPV after a vibrating pump

  1. #1
    Junior Member
    Join Date
    Apr 2013
    Posts
    3

    OPV after a vibrating pump

    I am interested to know if I put an OPV after a vibrating pump and set it to 9 -10 bar would the flow be constant (linear) if pressure before the OPV is greater than the 9-10 bar it is set at.

  2. #2
    Senior Member
    Join Date
    Mar 2012
    Location
    Bathurst
    Posts
    982
    Once the pump ramps up to full pressure (a few seconds) then yes, the OPV will drain the excess pressure and a constant pressure will be applied to the group head.

    This is how all mid/high end machines with vibe pumps regulate pressure.

  3. #3
    Junior Member
    Join Date
    Apr 2013
    Posts
    3
    Behmor Brazen - $249 - Free Freight
    Thanks. I can see that in a commercial or heavy use situation a rotary would go the extra mile but would I be right to say then that a vibration pump with an OPV in a domestic machine will give me same results as a rotary pump both set to 9 - 10 bar and making a few coffees each morning.

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