Results 1 to 5 of 5

Thread: gaggia ulka pump

  1. #1
    Senior Member
    Join Date
    Oct 2007
    Posts
    791

    gaggia ulka pump

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    hi all,

    just did a thorough clean of my carezza and found the Ulka pump. i think Ive read somewhere that ulka pumps are sometimes able to be restricted down to 9bar max.

    this may only apply to more expensive machines but wasnt sure.

    then i noticed this brass part that comes off the pump and exits out just above the water reservoir.

    do you know what this is? it has a flat head end, so im thinking maybe it can be adusted???

    this first pic is top down

    thanks

    aaron


  2. #2
    Senior Member
    Join Date
    Oct 2007
    Posts
    791

    Re: gaggia ulka pump

    and this pic is looking up into the machine from where the water reservoir usually is (this is the flat head screwdriver type end...


  3. #3
    Senior Member
    Join Date
    Mar 2005
    Posts
    2,165

    Re: gaggia ulka pump

    You could be right. The pumps themselves cant be adjusted but most manufacturers add an overpressure valve which serves this purpose. Given one side of that t-piece goes to the boiler and the other back to the tank Id be guessing thats what it is, though whether or not its adjustable youll have to see for yourself. One way to check is to stick in a blind filter or run it in hot water mode with the steam valve closed and measure how much water comes out, then adjust (noting carefully its original position!) and re-measure. Ulkas website has graphs for each of its pumps on how much flow occurs at what pressure which is a rough way to set 9 bar.

    Greg

  4. #4
    Senior Member
    Join Date
    Oct 2007
    Posts
    791

    Re: gaggia ulka pump

    hi greg,
    thanks for giving me the courage to mess around with my machine. ill report back soon with my findings....
    UNLESS someone warns me against tinkering...although whos gonna come out and say "dont tinker"? *;)


    aaron

  5. #5
    Senior Member
    Join Date
    Mar 2005
    Posts
    2,165

    Re: gaggia ulka pump

    I dont know many of us here that *dont* tinker with our machines! :)



Similar Threads

  1. GAGGIA pump mystery
    By cam@mcl in forum Brewing Equipment - Pointy End ($1500-$3000)
    Replies: 5
    Last Post: 29th June 2013, 09:58 PM
  2. ulka pump power reduction
    By Hildy in forum Brewing Equipment - Entry level (sub $500)
    Replies: 25
    Last Post: 10th April 2013, 09:37 AM
  3. For sale: Used ULKA pump model EP5
    By gaggia_fanatic in forum SOLD
    Replies: 0
    Last Post: 30th July 2012, 09:22 AM
  4. gaggia pump .....Im new and know not a thing so help me
    By feebee in forum Brewing Equipment - Extreme Machines ($3000+)
    Replies: 11
    Last Post: 13th February 2011, 12:27 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •