How to Bend Copper Pipe Without Kinks for an Air Conditioner

Written by robert sylvus
  • Share
  • Tweet
  • Share
  • Pin
  • Email
How to Bend Copper Pipe Without Kinks for an Air Conditioner
Copper pipes in air-conditioning units must not have kinks. (Comstock Images/Comstock/Getty Images)

Kinks in an air-conditioning system's copper pipe restrict refrigerant flow, which reduces system efficiency and can reduce the compressor's life expectancy. Typically, air-conditioning systems use soft copper piping, which comes from the manufacturer in 25- to 100-foot rolls. Rolled copper limits the amount of leak-prone braised fittings, but it requires custom bended turns. Kinks occur when a technician attempts to bend the pipe in too tight of a radius or by applying too much pressure in a small area.

Skill level:

Other People Are Reading

Things you need

  • Tubing bender

Show MoreHide


  1. 1

    Select a tubing bender with the correct sized bending die. The label on the die's side indicates its size. Hand-held tubing benders have a two handles that hinge around a bending die. Clamps mount to the handles near the bender's pivot point. The bending die mounts to the pivot point. Bending dies use a valley-shaped channel that holds the copper pipe. The valley's width must match the refrigerant piping's exterior size.

  2. 2

    Open the tubing bender's handles to the full open position. In the full open position the clamps will align above the die.

  3. 3

    Slip the copper pipe into the tubing bender's clamps. The pipe slides over the top of the die and into the open slot on the side of the clamp.

  4. 4

    Position the pipe in the valley. The mark on the top of the bending die represents the apex of the bend. Move the copper pipe until the desired centre of the bend aligns with the die's mark.

  5. 5

    Squeeze the tubing bender's handles together. Stop squeezing once the pipe's bend has reached the desired angle.

  6. 6

    Open the tubing bender's handles. Remove the tubing.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.