Glossary Of Bending Terms With Illustrations - Greenlee 777 Instruction Manual

Glossary of Bending Terms with Illustrations

1. amount of offset — the dis-
2. back-to-back bend — any
3. center-to-center distance —
4. degrees per shot — a segment-
5. depth of offset — same as
6. developed length — the actual
7. gain — because conduit and
A
C
B
8. height of offset — same as
9. kick — single bend of less than
10. leg length — the distance from
Greenlee Textron Inc. / Subsidiary of Textron Inc.
777 Segment Bender
tance that the conduit or pipe
must be re-routed to avoid an
obstruction; see offset bend in
this glossary and Offset Bending
Instructions in this manual
U-shaped bend formed by two
parallel 90-degree bends with a
straight section of conduit or pipe
between the bends
the distance between the
successive bends that make
up an offset or a three-bend
saddle
bending term which refers to the
amount of bend accomplished
each time the conduit is bent; to
achieve a smooth bend, each
shot must accomplish the same
number of degrees of bend
amount of offset
length of pipe that will be bent;
see distance "C" in the following
illustration
pipe are bent with a radius and
not at right angles, the length of
conduit or pipe needed for a
bend is less than the straight-line
measured length; gain is the
difference between the right
angle distance (A + B) and the
shorter curved distance (C)
amount of offset
90˚
the end of a horizontal section
of conduit or pipe to the bend;
measured from the end to the
outside edge of the conduit or
pipe.
11. 90˚ bend — any bend that
12. number of bending shots —
13. O.D. — the size of any piece of
14. offset bend — two bends with
15. ram travel — the distance that
16. rise — the distance from the end
17. segment bend — any bend
18. shot — a single bend; a shot
19. shrink — the amount of conduit
20. springback — the amount,
21. stub — same as rise
22. stub-up — same as rise
6
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changes the direction of the
conduit or pipe by 90 degrees
a segment bending term which
refers to the total number of
small bends that are required
to make up a more gradual
segment bend
conduit or pipe as measured by
its outside diameter
the same degree of bend; used
to avoid an obstruction blocking
the run of the conduit or pipe
the ram of hydraulic bender
moves to accomplish a particular
bend; inches of ram travel are
proportionate to degrees of bend
of a vertical section of conduit or
pipe to the bend; measured
outside edge of the conduit or
pipe.
formed by a series of bends of
a few degrees each, rather than
a single bend; allows a more
gradual bend
may accomplish a complete
bend or, when making a seg-
ment bend, several shots may
be required to make a more
gradual bend
"lost" when laying out an offset
bend working toward an obstruc-
tion; see the explanation under
Offset Bending in this manual
measured in degrees, that a
conduit or pipe tends to
straighten after being bent