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Oil piping

MJC
MJC Member Posts: 8
in THE MAIN WALL
I'm having a problem with starting up a small (170 MBH)oil-fired boiler. Can't get oil from an underground tank to the burner. There is about 7 feet of lift and about 40 ft. of 1/2"ID piping from the tank to the burner. Can get oil to the boiler using a hand pump. I'm being told by the boiler rep. that the piping is too big (should be 3/8" OD)for the fuel pump on the boiler to create enough vacuum to get the oil to the boiler. I've never heard of this before and was wondering if anyone run into this problem?

Comments

  • STEVEN MARKS
    STEVEN MARKS Member Posts: 154
    oil piping

    Mike -
    What about installing check valve on oil supply. If you can get oil to boiler with hand pump the check valve will keep oil at the burner unless their is an air leak. Did you check with a vacuum gauge?
  • Weezbo
    Weezbo Member Posts: 6,232
    ..you should call some one...

    the tricks are numerous one quick one is bag the primary wire around it to the pump shut it down soon as it picks up or wire in thetrans former as well and when it fires let it run a few seconds and shut it down ....rewire it and roll. that dont work get a blow out gun and lose the dirt inside the pipe or the leaf at the end sunk in the oil makin a natural Valve on thesubmerged oil pipe... or go put 1 gallon in the bucket put a supply and return in the bucket and fire it and then hook it back up or,call some one who knows these things ... pipe too big...well that is interesting...wonder what that means...that sounds like tripe to me. think about it...how ould the guy you spoke to explain system pumps into a2" black iron pipe? magic?
  • Paul Mitchell_2
    Paul Mitchell_2 Member Posts: 184
    Oil lines

    Is it two pipe? Did you install the bypass plug? If this is all correct it must be air or clogged line. You may be refering to 1/2" OD and the rep at the ID. Depending on who you talk to 1/2OD is 3/8 ID. 1/2 OD is code for supply line.
    Paul
  • Firedragon_4
    Firedragon_4 Member Posts: 1,436
    You're at 11\" of calculated vacuum

    with no filters, fittings, etc.
    And now, and now, and now the oil gets cold and.............

    Fact is the larger the tube, the less friction loss. So much for that guess, eeeenh, wrong!

    Here read this, it's all in there:
    http://suntecpumps.com/Technical Literature.htm

    Merry Christmas to all and to all a warm and toasty night!
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