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Idiomas disponibles
Idiomas disponibles
ILLUSTRATED BENDING GLOSSARY
back-to-back bend — any U-shaped bend formed by two parallel 90° bends with a straight section
conduit or pipe between the bends.
center-to-center distance
three-bend saddle.
— the actual length of pipe that will be bent.
developed length
— the difference between the straight-line distance (a + a) and the shorter radial distance, (d)
gain
where:
= angle of bend
q
= the centerline bending radius of the bending shoe kick — single bend of less than 90°
r
— the distance from the end of a straight section of conduit or pipe to the bend;
leg length
measured from the end to the outside edge of the conduit or pipe.
— two opposite bends with the same degree of bend; used to avoid an obstruction.
offset bend
— the distance between the two legs of an offset bend, measured perpendicular to the
offset height
two legs; also called amount of offset and depth of offset.
— the distance from the end of a straight section of conduit or pipe to the bend; measured from
rise
the end to the center line of the conduit or pipe. Also called stub or stub-up.
— a three-bend or four-bend combination; used to avoid an obstruction.
saddle
— the amount of conduit "lost" when laying out an offset bend working toward an
shrink
obstruction.
— the amount, measured in degrees, that a conduit or pipe tends to straighten after
spring back
being bent.
BENDING INSTRUCTIONS 90° STUBS
1. Measure the length of the required stub.
2. See the Minimum Stub Length formula on the Deduct Table. The required stub must be equal to or
longer than the Minimum Stub Length.
3. Measure and mark the stub length on the conduit. This is Mark 1. Subtract the Deduct from this
mark and make a new mark. This is Mark 2.
4. Align Mark 2 with the front edge of the hook and bend the conduit.
Notes:
When the operator presses RETURN, the conduit may spring back a few degrees. Compensate by
overbending as shown in the Scale Reading Table.
— the distance between the successive bends that make up an offset or a
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