Announcement

Collapse
No announcement yet.

Welding a boiler

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #16
    Re: Welding a boiler

    Originally posted by 73706262667068110 link=1190811122/13#13 date=1288911613
    You would need to get another element. The safety valve on boilers are generally in the middle. The electronic controller may only suit a two group...... etc
    The two group I got was cheap as the element was gone. Also, in pretty average repair. So I am thinking at least one of the Gicars, the Control Panels, the solenoids.... should be OK.

    I think the Safety is no problem, because you can just go for a three-way connection somewhere and run the safety valve, pressure stat off that.

    The electronic controller is the hard bit. I still have to think about that a bit, but the unit I have runs off two electronic control units runnings in parrallel. Not sure if that means they work independantly or not, but it would be a little stupid if they do not.

    Originally posted by 70727E7676787F62110 link=1190811122/12#12 date=1288910335
    Why?
    I have the parts, so I thought it would be fun. Also, I really dont want a two group at home at all.

    Originally posted by 73706262667068110 link=1190811122/13#13 date=1288911613
    I would be under the assumption that this would cost more than buying a one group
    Hope not, because it will not go ahead. Assuming I have all the parts, then it just comes down to my time and the boiler fix.

    Comment


    • #17
      Re: Welding a boiler

      Originally posted by 46434C4717161113220 link=1190811122/15#15 date=1288952189
      The electronic controller is the hard bit. I still have to think about that a bit, but the unit I have runs off two electronic control units runnings in parrallel. Not sure if that means they work independantly or not, but it would be a little stupid if they do not.
      i have a machine which I am going to change from automatic. i will setup without control box, and take out flowmeter as well. then just use the water level gauge to fill as required.

      Comment


      • #18
        Re: Welding a boiler

        Originally posted by 56535F5B535C03320 link=1190811122/16#16 date=1288992132
        i have a machine which I am going to change from automatic
        Good idea. Just need to figure out the boiler now.

        Comment


        • #19
          Re: Welding a boiler

          Hey Luke

          I could fix it for ya for the pre mentioned couple of slabs of beer,
          This is a machine i have fixedhttp://coffeesnobs.com.au/YaBB.pl?num=1287657563 the boiler on.
          As mentioned above the only way it can be repaired is by Oxy/Acetylene or Oxy/LPG with silver solder, and the boiler needs to be striped down of all components.
          Anyhoo im in Sydney (Katoomba, Blue Mountains)

          Cheers Craig

          Comment


          • #20
            Re: Welding a boiler

            Hi Snob-experimentalists ,
                                                 I can help with a few of the questions and throw up a few more .
            Firstly the volumetric machines almost always have a controller by Gicar or Giemme , some of these will run up to 3 or 4 groups , and sometimes LCD displays , but are the same controller with only the required touchpads and volumetric sensors and 3 way  valves plugged in - so a 3 group machine controller (of the common type) will happily run  a single group machine with 1 touchpad , pump switching and boiler autofill from the level probe and read 1 volumetric sensor.
            Renekas , La Cimbalis and Rancilios have custom electronics - and might be difficult or impossible to easily press into service .
            Boilers ..... Synesso , La Marzocco and others are now using stainless steel boilers , and  are Tig welded - like all of the pressure vessels in the food industry ( actually like everything in the food industry - from utensils to baking trays ) so it wouldnt be outrageously difficult to build a boiler from stainless 316 and find a qualified  welder to Tig it all together ( not inexpensive though , but (( and I hesitate to say this , it should be bombproof , and last a very long time ))
            HAVING SAID THAT .. SAFETY IS THE PRIME CONCERN ALWAYS  ( Ill stop shouting now ) and its not  a job to be tackled lightly - but new safety valves are a must ( and carry their own little certificate ) and the electrical side of things has the same responsibilities .
            but for the engineers amongst us ...
            ciao, pip.

            Comment


            • #21
              Re: Welding a boiler

              Originally posted by 322B32420 link=1190811122/19#19 date=1289119485
              it wouldnt be outrageously difficult to build a boiler from stainless 316 and find a qualified  welder to Tig it all together ( not inexpensive though , but (( and I hesitate to say this , it should be bombproof , and last a very long time ))
              The only downside of going in this direction is that s/s under high temperature and positive pressure will be susceptible to Pinhole Pitting from the inside of the Boiler if proper precautions arent taken to remove all traces of Chlorine compounds from the feed water. You can do a search via Google to read about the technicalities involved but it pays to make decisions from an informed position....

              Mal.

              Comment

              Working...
              X