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Silvia - Rotary Pump?

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  • Sullo
    replied
    Ive been thinking about getting a silvia for poops and giggles, then I saw this thread
    god damnit Im trying to learns electrical course atm!!! facepalm....

    Leave a comment:


  • barlo
    replied
    Originally posted by SNIPER762 View Post
    The other couple show the complete machine, without the stainless steel rear cover plate.
    That is impressive, it looks like the pump only just fits!

    Leave a comment:


  • backofen
    replied
    Also inspired by SNIPER762's photos, I am currently working on my Silvia with rotary vane pump and tank.
    Few photos and two videos from first tests can be seen here:
    https://www.kaffee-netz.de/threads/r...e-tank.127257/

    Leave a comment:


  • backofen
    replied
    Originally posted by SNIPER762 View Post
    Wow Aaron. That is a small machine. I’d like to see under the hood.
    Here are some "under the hood" photos of this small machine, but mainly from its rotary pump
    https://www.kaffee-netz.de/threads/quick-mill-omre-automatika.113080/


    btw, great job! I wanted to give my silvia a rotary pump as well and found this thread, thanks for the inspriation.

    Leave a comment:


  • SNIPER762
    replied
    Wow Aaron. That is a small machine. I’d like to see under the hood.

    Leave a comment:


  • Javaphile
    replied
    To keep this thread on topic the rifle/cartridge posts have been moved to this thread: https://coffeesnobs.com.au/off-topic...cartridge.html


    Java ".460 Weatherby Mk. V" phile

    Leave a comment:


  • Aaron
    replied
    Some of the early (Mid 60's) OMRE Quick Mill domestic machines came with a rotary pump. They are even smaller than a Silvia.
    here's a pic of one swiped from the internet
    Attached Files

    Leave a comment:


  • SNIPER762
    replied
    Hi Hoggy42,
    Thank you very much.
    I’m not familiar with the Expobar, so I couldn’t say.
    As for the electrical side of things....Definitely Not just a plug and play. Also, I had to add a solenoid that would shut off the water during the steaming phase. Otherwise, the boiler would keep filing up with water (being connected to mains water).

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  • SNIPER762
    replied
    I did consider a 90 degree elbow on the back. However, after doing some research on rotary vane pumps in general, it is considered not good practice to have 90 degree bends that close to the pump. It creates too much water turbulence. In some cases, this will cause the pump to have a loud, high pitched sound. It can also make the pump wear out prematurely. The less cavitation or bubbles being introduced into the water, the better.
    So, where possible, I used slow progressive bends.
    When I have time, I’ll explain everything properly (as best as I can)

    Leave a comment:


  • artman
    replied
    Wow, awesome work!! Nothing like the satisfaction of a great DIY.

    Would love to see more details.

    Cheers

    Leave a comment:


  • Jackster
    replied
    There is a heap of thought in this, and plenty of silver solder.
    Nice job!
    Looking forward to the build up details.

    Does look heavy!

    Leave a comment:


  • EspressoAdventurer
    replied
    Originally posted by SNIPER762 View Post
    Let me know if you like this build.
    Would you like an in depth description of the build, from start to finish...With pics at various stages of the build?
    I hope that anyone that is wondering if a Silvia with a rotary vane pump is doable, now knows that it certainly is
    Yes Please Sniper!....We luv reno / rework / rebuild / hop up performance mod....story...
    post away pls

    Leave a comment:


  • 392392
    replied
    Wow; that's some bloody good work!
    Very tidy work there; especially like the push fit water inlet from the rear;
    Could you have used a 90 elbow on the back ? Might you some wall space

    Leave a comment:


  • Hoggy42
    replied
    Sniper that is fantastic. Now I'm wondering if I could do the same to my Expobar... As I have a motor and pump I pulled from a old 2 group machine. Did you have to do much with the electrical side or simply plug it in?

    Leave a comment:


  • Dimal
    replied
    Very nice work Sniper...
    Who'd have thought that it was even possible, or even practical.

    Great stuff,
    Mal.

    Leave a comment:

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