Pipe bending spring is a strong, flexible spring that is inserted into (or over) a pipe to support the walls of the pipe when manually bending.
Despite their name, pipe bending springs do not actually bend pipes. In fact, what they actually do is help you to not distort or crease your pipes during manual bending by providing a stable internal or external structure.
Pipe bending springs are typically made from square section spring steel. Spring steel is a low alloy, medium carbon steel which has very high yield strength. It is called ’square section’ because it is made from a thin, square bar of spring steel.
4.Different types: external and internal
Internal pipe bending springs are fed into the inside of the pipe and help to support the walls of the pipe during manual bending. Using a spring prevents the pipe from creasing or becoming distorted. The ring on the end of the internal spring is used to attach a wire or string so that the spring may be retrieved if it passed out-of-reach inside the pipe.
External pipe bending springs are fed over the top of the pipe and help to support it when manual strain is applied. External pipe bending springs are typically used on pipes with a diameter less than 15mm.
5. How to use
1. Select your pipe
2. Deburr the end of the pipe
3. Feed the spring into the pipe
4. Leave a little bit showing
5. Bend the pipe
6. Pull the spring out
6. Care and maintenance
Fortunately, because of the nature and material of this tool, very little maintenance is required, you can bend it, twist it , and tie it in knots and it will return to its original shape .
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