Rigid Conduit Bender Instructions

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Rigid electrical conduit refers to a particular pipe used to protect electrical circuits in commercial and industrial electrical installations. It is made of various metal alloys, generally galvanized steel or aluminum alloys. While bending galvanized steel conduit with a hand bender requires a bit of force, it is easily accomplished as long as the pipe size does not exceed 1 inch in diameter. And because the majority of commercial electrical installations use 3/4-inch or 1/2-inch conduit, a hand bender will work just fine. Occasionally, it is necessary to bend the pipe at a 90-degree angle in order reach around corners.

Things You'll Need

  • 3/4-inch conduit
  • Band saw
  • 3/4-inch hand bender
  • Tape measure
  • Marker
  • Level
  • Determine how far back you need the 90-degree angle from where the end of the pipe will terminate by measuring from where the threads begin to the edge of the surface upon which the pipe will be mounted. Remember to measure from where the threads begin instead of the end of the pipe, because the threads will actually protrude through the junction box. If using 3/4-inch pipe, deduct 6 inches from your measurement, and deduct 5 inches if you are using 1/2-inch conduit. Mark the measurement on your conduit using a marker or pencil.

  • Place the end of the conduit into the bender so that your mark lands on the arrow marker included on the bender. This will ensure that your 90-degree bend will leave you with the proper measurement.

  • Set the conduit on the ground, make sure your bender is still on the right mark and place your foot on the foot rest of the bender while holding the bender lever with one hand, then pull up and backward slowly on the bender until you reach the 90-degree marker indicated on the bender.

  • Remove the bender, let the pipe rest flat on the ground so that the 90-degree angle is aiming up in the air, then place a level on the vertical part of the 90-degree angle to check that it is level.

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