40 — PIPE TRADES PRO™
Combination Rolling Offset
Unlike a regular rolling offset, the entry and exit fittings for a
combination rolling offset are on different planes and therefore
have different fitting angles from each other.
Horizontal to Vertical
Find the pipe length, and entry and exit fitting angles for a
combination rolling offset with a vertical pipe exit, given a
Roll of 23”, Offset of 15”, and Advance of 29”. Use the box in
Diagram 1 to review the entry and exit pipe perspectives.
0’ -29”
ADVANCE
0’ - 15”
Offset
0’ - 23”
Roll
Unknown
Entry Fitting
Angle
Diagram 1
KEYSTROKE DISPLAY
ALL CLEArEd
1. Solve for the pipe length and entry fitting angle
OFST 15 INCH
(Advance) RUN 29 INCH
(Roll) LNTH 39-15/16 INCH
FIT° 43.44°
Do not clear or reset the calculator.
If the box is oriented in a 2-dimensional perspective (Diagram 2),
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