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  1. #1
    Join Date
    Jan 2006
    Posts
    34
    My instructor has a caliper for measuring the inner and outer diameter of pipe. I've looked all over and can't find one. Do any of you have any links?

  2. #2
    Join Date
    Jan 2002
    Location
    tip of the mitt
    Posts
    1,974
    Check with dan holohan at the heating help forum. He has something like that in his catalog.
    I have my own little world. But it's OK...they know me here.

  3. #3
    Join Date
    May 2005
    Location
    Western Kansas
    Posts
    267

  4. #4
    Join Date
    Oct 2004
    Location
    The "Burgh"
    Posts
    1,255
    General part # 729.

    call URI, they will have or can get.

  5. #5
    Join Date
    Feb 2003
    Location
    NH & Cebu
    Posts
    1,611
    Why would anyone need a caliper to measure pipe? Especially an instructor.

  6. #6
    Join Date
    Jan 2001
    Posts
    7,521
    your local supply house should have one....or a local hardware store...possibly sears or an auto parts store....


  7. #7
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,242
    Originally posted by hvacmd2002
    Why would anyone need a caliper to measure pipe? Especially an instructor.
    Right,
    EYE ( or I ) is a Great Instrument ...

    Calibrate it and use it.
    Recalibrate as necessary.
    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

  8. #8
    Join Date
    Jan 2006
    Posts
    34
    Originally posted by hvacmd2002
    Why would anyone need a caliper to measure pipe? Especially an instructor.
    I am still getting a feel for this stuff. I would rather take the time to pull out a caliper and have the exact size than to make a mistake.

  9. #9
    You might be the person looking for an x SCH 40 pipe clamp and find that "they" don't make one, BUT a y tubing clamp is really an x pipe clamp. Confusing.. yes. I'll agree.

    Did you really find that metric adjustable wrench you were looking for? <G>.


  10. #10
    Join Date
    May 2004
    Location
    Rapid City, SD
    Posts
    7,414
    Not the greatest way, but a cresent wrench works mighty good in a pinch..(well, one with the wrench size on the side with a neat little arrow that points to the size).

    "If you call that hard work, a koala’s life would look heroic."

  11. #11
    Join Date
    Feb 2003
    Location
    northwest of Atlanta, for now
    Posts
    273

    3/8" is easy

    5/16" isn't.

    All I do is use a crescent wrench around the outside of the pipe. I twist it a bit to make sure the pipe is round and then I measure the opening of the wrench to see the measurement.

    Usually, the Mark 1 eyeball is perfect, but there are times I need additional verification.

    BTW, the 'rocket' tool Dan Holohan sells is for iron pipe, I think.

    http://www.heatinghelp.com/shopcart/...?category=5-43



  12. #12
    Join Date
    Feb 2003
    Location
    Huntsville,AL
    Posts
    4,125
    inexpensive calipers at harbor freight, Sears, auto parts stores, WWGrainger, McMasterCar, ___

    Understand that the distributor clerks will probably not know the actual measurements!

    When you have looked at 200pc of pipe & tubing, you will know by visual inspection a pipe's size.

    steel pipe comes in tubing thickness [like elec conduit & fire sprinkler thinwall {Sch30 ?)], Sch40, Sch80, Extra Heavy wall, etc__
    harvest rainwater,make SHADE,R75/50/30= roof/wall/floor, use HVAC mastic,caulk all wall seams!

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