Glossary Of Bending Terms With Illustrations - Greenlee 777 Mode D'emploi

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 seg-
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 Tools, Inc.
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 suc-
cessive bends that make
up an offset or a three-bend
saddle
ment-bending term which refers
to the amount of bend accom-
plished 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 dif-
ference 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
changes the direction of the
conduit or pipe by 90 degrees
12. number of bending shots —
a segment bending term which
refers to the total number of
small bends that are required
to make up a more gradual seg-
ment bend
13. O.D. — the size of any piece of
conduit or pipe as measured by
its outside diameter
14. offset bend — two bends with
the same degree of bend; used
to avoid an obstruction blocking
the run of the conduit or pipe
15. ram travel — the distance that
the ram of hydraulic bender
moves to accomplish a particular
bend; inches of ram travel are
proportionate to degrees of bend
16. rise — the distance from the end
of a vertical section of conduit
or pipe to the bend; measured
outside edge of the conduit or
pipe.
17. segment bend — any bend
formed by a series of bends of
a few degrees each, rather than
a single bend; allows a more
gradual bend
18. shot — a single bend; a shot
may accomplish a complete
bend or, when making a seg-
ment bend, several shots may
be required to make a more
gradual bend
19. shrink — the amount of con-
duit "lost" when laying out an
offset bend working toward an
obstruction; see the explanation
under Offset Bending in this
manual
20. springback — the amount, mea-
sured in degrees, that a conduit
or pipe tends to straighten after
being bent
21. stub — same as rise
22. stub-up — same as rise
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777 Segment Bender