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The EMT bender also has several marks that are used to line up various types of bends. These are the arrow, the star and the teardrop. The teardrop. (notch or rim mark) is used for the center bend on 3 point saddles. The star is used on back to back bends. The arrow is used for all other bends covered in this manual.
Dec 15, 2016
Place the bender onto the tubing with the hook pointed towards the free end to be bent upwards. Make sure the conduit is resting properly in the bender's hook and lineup the arrow symbol with the mark you placed on the tubing. 1-?" EMT and 1" Rigid 11" Page 3 3 5.
the end of the conduit (Y). Line up (Y) with arrow on bender. Bend until 90° bend is formed. Table 1. Measure and mark distance on the conduit from a fixed point (X), to the back of the 90° bend, point (Y). Align. (Y) with (B or ?) on bender and make a 90° bend. Conduit Size. EMT Deduct. Rigid or IMC Deduct. 1/2". (12.7 mm).
The Zip Guide has proven to be so useful that manufacturers have applied them on the handles of benders. The Benfield technique works for all sizes of EMT, rigid conduit, or IMC. The same formulas can be used with power benders even on 6" conduit. It also works for any make of bender that may be found on any job.
Measure your job. Mark you conduit using the recommended tables. Use your bender's engineered marks. Note: Reference to the above Steps 1, 2, and 3 will be made throughout this booklet. Arrow. To be used with stub, offset and outer marks of saddle bends. Rim Notch. Star-Point. Degree Scale. A Choice.
Even a universal bender may require attaching a shoe and/or follow bar designed for EMT. This article focuses on hand benders. If you are using a hydraulic or power bender (recommended for conduit with a nominal size over 2 inches), find instructions for your specific bender model. Hickey benders tend to crush or kink
Oct 5, 2017 Most conduit bends, in addition to a simple 90-degree bend, can be understood and calculated using the geometry of a right triangle. Using a Triangle to Understand an Offset. Offset | Source. Offset. Three-point saddle | Source. Three-point saddle. Four-point saddle | Source. Four-point saddle.
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