What is the cut size for a wrap hanger for an 18" diameter pipe when allowing for 2" legs?

To determine the cut size for a wrap hanger for an 18" diameter pipe, we start by calculating the circumference of the pipe, which can be found using the formula for the circumference of a circle: C = π × D, where D is the diameter.

For an 18" diameter pipe:

C = π × 18" ≈ 3.14 × 18" ≈ 56.52"

Next, when creating a wrap hanger, you need to account for the additional length added by the legs of the hanger. In this case, you have 2" legs on either side, which means you need to add 4" in total (2" for each leg) to the calculated circumference.

Adding this to the circumference:

56.52" + 4" = 60.52"

When approximating 60.52" for practical purposes in HVAC applications, this is usually rounded to a more standard fraction. In this case, when you adjust it with practical rounding and potentially factoring in manufacturing tolerances, the closest value we refer to would be 60 9/16".

This understanding of calculating the circumference and adjusting for additional lengths necessary in the application of HVAC fittings leads to the conclusion that the appropriate