Steamfitter/Pipefitter exam: Pipe offsets

Key points

• For 45 degree fittings, travel = set x 1.414.
• For 22.5 degree fittings, travel = set x 2.613.
• For 60 degree fittings, travel = set x 1.155.
• Run for a 45 is equal to the set.
• Subtract fitting take-off from travel to get the cut length.

Study tip

Memorize the 45 degree constant first. It is the one used most.

Try these

1. A 45 degree offset with a 10 in set has travel of about:

   1. 10 in
   2. 12.5 in
   3. 14.1 in
   4. 20 in
   Show answer

   C. 14.1 in 10 x 1.414.

2. For a 45 degree offset the run equals:

   1. Twice the set
   2. The set
   3. Half the set
   4. The travel
   Show answer

   B. The set It is a 45-45-90 triangle.

3. The 60 degree travel constant is:

   1. 1.155
   2. 1.414
   3. 2.0
   4. 2.613
   Show answer

   A. 1.155 1 / sin 60.

Keep going

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