Copper pipes correctly bent in two ways. Either use a tool called flex spring, or use a proprietary pipe bender. If you try to bend the copper pipe without one of these tools, it will be knotted.
Twist in any type of pipe reduces the diameter of the pipe, and if the diameter decreases, the flow decreases. The whole system becomes less effective and more easily clogged. Some common question asked by people.
This is one of the reasons why the plumber bends the pipes instead of simply cutting the pipes. By putting the bending fittings on the track as an elbow to change direction. The direction of pipe fittings changes very quickly. Which allows the formation of narrow corners. The tightness of these corners reduces the efficiency of pipe operation.
When the water flows under the "straight line" suddenly, it meets a tight, right angle bent.
Since the curve is very compact, the water hits only one side of the fitting, and then omits the corners. This turbulence in the water can cause bubbles, which, if collected, can lead to air blockage.
Air locks can, at best, be a nuisance in the water supply system. In the worst case, they can completely damage the system. Tube benders available in a variety of sizes, suitable for 6mm to 38mm copper pipes hand operated.
What you show here is a multi-tube bending machine and a small tube bending machine.
As the name implies, multi-fold pipes will have many different pipe sizes, while mini-fold pipes will have smaller diameters.
