7.9 Flashcards
What are the four process in Pipe Forming?
Cutting
Bending
Flaring
Belling
How much longer should piping be cut by?
10%
With Hand bending tools what is recommended to do to the pipe before bending?
Lubricate at the bend point/
What is the standard flare angle?
37°
What flaring method involves being clamped in flaring blocks and a plunger is driven into it?
Impact type flaring
What flaring method involves a self contained unit where pipe is clamped and cone is turned into the pipe?
Roll-type flaring
Why must single flares be manufactured to certain tolerances?
Ensure a strong leak-free joint
Soft aluminium piping can be double flared but what size does it have to be at a minimum?
3/8 of a inch
What pressure do ridged pipes carry?
Low pressure
What is the point of belling pipes?
So a rubber hose can be slipped on it
What size pipe can be hand belled before having to use a power beading machine?
1/4 inch to 1 inch
Pipes are normally repaired with the same material but if it is not available what are the 3 you can replace it with?
Aluminium alloy
CRES
Titanium alloy
What is the maximum amount of dent allowed in a pipe unless it’s in a bend?
20%
