In all offsets to determine the travel you must multiply the set in inches by the cosecant of the angle required.
For Example:
The cosecant of 30 degrees is 2
The cosecant of 15 degrees is 3.86
The cosecant of 45 degrees is 1.414
Say your offset needed to travel 2 feet on a 15 degree angle.
24" x 3.86 = 92.64" or 7' 8 5/8"
Say your offset needed to travel 2 feet on a 30 degree angle.
24" x 2 = 48" or 4'
Say your offset needed to travel 2 feet on a 45 degree angle.
24" x 1.414 = 33.94 or 2' 9 15/16
I believe what you are really asking is "What are the standard allowances for length?" Or in other words, how long should the threads be on the pipe? In general, the thread legnth is equivalent to the nominal pipe diameter. That is, if you are working with 1" pipe, you want to have 1" of thread in the fitting. In actual practice, you will cut a somewhat longer thread, so you do not run out of thread before it is tight in the fitting. If you are working with plastic glue together pipe the same theory applies. The socket on the plastic fittings is eqivalent to the nominal pipe diameter.
Another possible answer you may be seeking is how to figure the length of a pipe making a 45 degree bend. That is simply the square root of 2, or 1.414 times the offset distance. For example, if you are making a 45 degree bend that needs to go 6 inches ahead, you would need a piece of pipe 8.48 inches long.
what is the pipe fitting formula of 90 degree elbow is 38.1
ans;ex 6"x 38.1= 228.6
1.4142 will give you the travel piece C-C then you deduct for the fitting
Pipe size times 0.707
The take off formula of a 45 degree elbow pipe, will depend on what the pipe is on. Sometimes a 45 degree pipe will need a 90 degree right angle turn to come off.
15.875 x pipe size=
5/8 x pipe size
this app help you: "Miter Flat Pattern Design" in play.google.com
elbow senter making
Loosen the clamps and use some elbow grease to twist the fitting into the desired position.
.625'' x pipe diameter
233
The easiest way is to find the centerline length and multiply that by the linear weight of the pipe size being used. Alternatively, this formula should give the weight of an elbow in pounds: w=0.071*pi^2*R*(ro^2-ri^2) Where: w= weight of elbow (lb) R=curve radius of elbow (in) ro=outside radius of pipe (in) ri=inside radius of pipe (in)
pipe size(inch)x38.1