Bending machines are available from most tool hire shops but for the occasional, diy plumber, they can be Plumbers tend to use bending machines as they are easier and quicker to use, they also enable multiple bends to be put in quite As with the external springs, each pipe size requires its own specific spring.
With the spring surrounding the pipe, the spring prevents the wall of the pipe from spreading outwardsĪs it is bent. Again they are made from flattered steel but with a 'funnel' at each end so that the copper pipe can be fed through
A specific spring is required for each size of pipe being bent.Įxternal springs are for smaller diameter copper piping ( from 6 to 10 mm externalĭiameter). (larger springs are available but are not recommended). Internal bending springs are commonly used for copper pipe from 12 to 22 mm external diameter With the spring within the pipe, the wall of the pipe is prevented fromĬollapsing inwards as it is bent. Into the pipe) while the other end incorporates an eye. Internal springs are just a spring made from flattened steel with a taper at one end (which is inserted Simplest tool is the bending spring normally used for pipe bending by hand, two types are available - internal and external. It is therefore essential to use the correct tools to avoid this happening. If a copper pipe is just forced to bend, the walls of the tubing will collapse and possibly rupture, Pipe bending is a techniques easily learnt with a bit of practice but does need a few special tools. To over weaken the pipe) but also less than 90° (where a pipe needs to be brought away from a wall to connect to an appliance) Not only can copper pipe be bent to give right-hand bends (greater bends should be avoided as they tend
Less water flow resistance in a bent pipe rather than a connector joint - the smaller diameter the pipe,.Reduced costs as additional connectors do not need to be purchased.This saves having to fit connectors wherever the direction of the pipes changes Copper is relatively soft and can (with the right equipment and techniques) be easily bent to give a minimumīend of about 100mm (4 inch) radius (for 15mm pipe).
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