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bending fuel oil line

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Robert_H
Robert_H Member Posts: 287
in Oil Heating

How do you bend coated fuel line? so far I gotten away with bending around a piece of pipe or a can etc. So I figured I would up my game and picked up a Kline roll bender "Klein-Tools-51006-3-in-1-Tubing-Bender"

The plastic gets beat up a bit and it just one radius.

Comments

  • mattmia2
    mattmia2 Member Posts: 16,297

    the groove needs to match the od of the tubing and coating. there are also internal and external bending springs. how many radii do you need? you just bend it until you get the angle of the new direction that you need.

    Robert_H
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 11,927

    Fill the tubing with sand. Then clear out the sand after the bend is completed.

    R-22 works good for blowing out fuel lines. Oops did I say that out loud?

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

    mattmia2Robert_HpecmsgGGross
  • HomerJSmith
    HomerJSmith Member Posts: 2,769
    edited 7:36PM

    That's the kind of bender I use on small tubing. If you are having scuffing, try spraying the tubing with silicone spray before bending. Make sure the silicone spray is suitable for rubber and plastics, not all are.

    Robert_H
  • HydronicMike
    HydronicMike Member Posts: 314

    Unless you need a tight 90, bend it by hand, working it up and down the bend a little. Otherwise use the size bender for the outside diameter of the tubing with the jacket.

    Robert_H
  • Robert_H
    Robert_H Member Posts: 287
    https://forum.heatinghelp.com/discussion/comment/1888466#Comment_1888466

    thanks, but where do I find a tubing bender that is 3/8 plush that jacket?

  • Robert_H
    Robert_H Member Posts: 287
    https://forum.heatinghelp.com/discussion/comment/1888438#Comment_1888438

    "the groove needs to match the od of the tubing and coating." yes, but who makes this?

  • pecmsg
    pecmsg Member Posts: 6,993
    https://forum.heatinghelp.com/discussion/comment/1888467#Comment_1888467

    refrigeration 1/2”.
    plenty of electrical lube

    Try not to slide the tool but walk it.

    mattmia2Robert_H
  • mattmia2
    mattmia2 Member Posts: 16,297

    a little bit bigger is probably ok. a little small is going to tear up the plastic which its probably just a cosmetic issue.

  • mattmia2
    mattmia2 Member Posts: 16,297
    edited 9:05PM
    https://forum.heatinghelp.com/discussion/comment/1888441#Comment_1888441

    you can also fill the part you want to bend with water and freeze it. it won't burst if it is a short section. both have issues with getting the line clean enough for fuel afterword.

    and you won't need a second mortgage for the r22 like Ed's method.

  • Big Ed_4
    Big Ed_4 Member Posts: 3,476
    edited 9:36PM

    I can't see using a bender on contained oil line ? A boot works in the corners ..

    For bright work I like ratchet type , looks like a cross bow . You would need try the larger size

    There was an error rendering this rich post.

  • HVACNUT
    HVACNUT Member Posts: 7,367

    I use the 1/2" block to bend 3/8" coated oil line. I have this mostly for refrigerant piping.

    Screenshot_20260217_165916_Samsung Internet.jpg

    While I was looking for a pic of that one, a came across this.

    Screenshot_20260217_165757_Samsung Internet.jpg

    This was on the HD website.

    pecmsg

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