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Quarter turn Vs "more than just a quarter"

Discussion in 'Irrigation' started by RhettMan, Feb 9, 2013.

  1. RhettMan

    RhettMan LawnSite Silver Member
    from Texas
    Messages: 2,563

    jim said a long time ago to me that: welding pipe ought to be done with the pipe soft as possible.

    and i begin thinking about how pipe is softer in the summer than in winter,

    and how friction creates heat.

    anyway before I go on too long with all the theorys.

    wouldnt a full turn (or perhaps even more) be better "welding" than solely a quarter turn?

    I dont think a quarter turn is enough friction to bind the two pieces into one (or atleast is inferior to a full turn, IMHO.
  2. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Messages: 50,218

    PVC pipe goes together with a chemical bond, the partial turn just spreads the cement.
  3. Sprinkus

    Sprinkus LawnSite Silver Member
    Messages: 2,295


    Page 6 states "Without delay, while the solvent cement is still wet, assemble the pipe and fitting, and twist a 1/4
    turn as the pipe is being inserted, if possible. Once the pipe end has reached the fitting socket stop, do
    not turn any further; doing so could break any fusion that is starting to occur."

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