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Thread: Plumbing in my new pump, help required

  1. #1
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    Plumbing in my new pump, help required

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi,
    well I finally have bought clamp ring motor to drive my ebay purchased Gino Rossi rotary vane pump. My first question is do I need to use the external pressure regulator considering that the pump has one built in? see photo.


  2. #2
    Senior Member
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    Re: Plumbing in my new pump, help required

    The built in regulator adjusts the pressure between the inlet and the outlet sides of the pump.....

    So if the mains pressure is normally 5.5 bars, the built in regulator will be adjusted to add 3.5 bar to give you your 9 Bar......

    No someone flushes the toilet, fills a bath or everyone in the street is watering their gardens.... supply pressure drops to 4 bar..... the pump adds 3.5 Bar..... you end up with only 7.5 Bar (the reverse applies if the mains pressure increases.... you will get more than 9 bar output....)

    Also some pumps dont like more than about 5 bar supply pressure......

    To fix all these problems - fit a 3.5Bar (350kPa) inline regulator before the pump..... and all will be well

  3. #3
    Mal Dimal's Avatar
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    Re: Plumbing in my new pump, help required

    Gday Ralph....

    Would be worth your while to discuss your requirements with one or more of our site sponsors who deal with commercial machinery regularly, such as CosmoreX Coffee or Euro Coffee. These guys can probably put together a kit of components with instructions for you to manage the installation yourself.

    All the best, :)
    Mal.

  4. #4
    Senior Member
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    May 2008
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    Re: Plumbing in my new pump, help required

    Hi, My rancilio (which has a procon pump with adjustment) has a pressure valve like you picture. It redirects water from after to before the pump if the pressure is above the set level. Is yours from a rancilio? I set my pump to about 9 bar, and the pressure valve to about 10.5. I also have a 350kpa regulator like JavaB mentions.

    Damian.

  5. #5
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    Re: Plumbing in my new pump, help required

    Thanks guys.
    Yes Damian the original pump was a procon and that is where the external pressure reg. came from. So it looks like I do need the ext. reg. and an extra 350kPa inline reg. Can anyone show a photo of the 350kPa reg?

    Thanks,
    Pete.

  6. #6
    Senior Member
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    May 2008
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    Re: Plumbing in my new pump, help required

    Hi, I dont have a photo, but they are about $80 at bunnings from memory. Coffeeparts also has lots of fittings you may need if you dont havce a good plumbing store near you.



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