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Push Fit Plumbing
Push fit fittings are useable on both copper and plastic pipe. Often complete installations are a combination of plastic and copper pipe. Plastic Pipe is easy to install because the pipe is flexible. This flexibility is a real boon for DIY installations as it can eliminate a fair amount of forming pipe bends and may reduce the number of fittings required. When feeding a pipe, tape over the end or fit a dust cap to prevent debris getting into the pipe and to protect the end from damage. Plastic pipe is various diameters ranging from 10mm to 28mm and lengths of 3m and 6m or on a roll of 25m or 50m. Plastic pipe may be used on hot and cold water systems but it is not suitable for central heating. A special barrier pipe is made for this purpose. A Chingford Plumber uses plastic pipes.Cutting.As with all pipe work, be sure to allow for the amount of pipe that will sit inside the fitting. On Hep 2O pipe this is the distance between the V marks. The cutter blade should be aligned with the next V mark on the pipe and pressure applied to the jaws. Rotating the pipe as you apply pressure will result in smooth square cuts. Clean off any burrs.Push Fit fittings are simple to use and there is a wide range available. Most of the fittings are available. Inside each connection, there is an O ring seal and a specially designed grab ring. On no account put your finger inside one of these fittings the grab rings are very sharp. Connecting.Insert a sleeve 9 or pipe insert into the end of the pipe before assembly. This gives rigidity to the pipe where it enters the fitting. With the insert in place, push the end of the pipe home. If you have used the V mark when cutting, the pipe will be fully engaged when the next V lines up with the cap. Pull on the pipe to make sure the toothed grab ring has fully engaged to secure the pipe. Dismantling fittings is a straightforward job but you will need specially designed keys for this. Chingford Plumbers can carry this work out.