Joint Support For Main Line At Elbows

Discussion in 'Irrigation' started by ed2hess, Mar 13, 2008.

  1. ed2hess

    ed2hess LawnSite Fanatic
    Posts: 13,309

    At this commercial job the plan calls for supporting the joints on the main line when changing direction. This is mainly at sleeves and the plan does not describe the method. The main line is 2.5" and pressure is 90psi. Apparently that wasn't included in irrigation school or on the test. And in all my years of repairing lines I didn't see anything that looked like a support mechanism.
     
  2. hoskm01

    hoskm01 LawnSite Fanatic
    Posts: 5,690

    Probably describing thrust blocks.

    Try this.

    http://www.harcofittings.com/documents/tech-docs/ThrustBlockingInst.pdf
     
  3. irrig8r

    irrig8r LawnSite Platinum Member
    Posts: 4,535

    Good diagrams.
     
  4. ed2hess

    ed2hess LawnSite Fanatic
    Posts: 13,309

    Thanks....contractor says it is not needed for pipe under 3' so we got off the hook. We got a couple situtons where this pipe is almost 4 ft. in the ground at some crossovers under drive and we plan to put support under those.
     
  5. AI Inc

    AI Inc LawnSite Fanatic
    Posts: 25,527

    Stall a good idea for 90s on main lines , a bag of concrete will help a lot and is quick.
     
  6. hoskm01

    hoskm01 LawnSite Fanatic
    Posts: 5,690

    ' or " ???
     
  7. ed2hess

    ed2hess LawnSite Fanatic
    Posts: 13,309

    inches...sorry typing fingars getting stiff.
     

Share This Page