Mesh expansion pipe is one of the expansion pipe. Expansion is one of the valve, mesh expansion is one of the expansion, expansion in a certain range can be axial expansion, can overcome the pipe is not within an Angle of axial offset, expansion pipe greatly convenient for valve pipe installation and disassembly, expansion pipe in the pipe to allow free expansion in the scale, once across its biggest ACTS as expansion amount limit, to ensure the safe operation of pipeline.On the basis of the expansion pipe company and improve step, I made the mesh expansion.Mesh expansion and traditional expansion are straight through, traditional expansion pipe at both ends of the flange connection, the middle and installation of pipe with diameter of straight pipe;Mesh expansion, as well as traditional expansion pipe and flange connection on both ends, just in the middle is no longer straight pipe, there is a piece of mesh in the middle of the mesh expansion, can filter the solid impurities in the pipeline fluid, mesh expansion in the top of the screen piece has a sealing cover.Mesh expansion pipe installation, in the front of the water meter, every half a year have to clear up the impurity in the mesh expansion, in order to protect the normal work of the water meter.Clean filter the impurities in expansion, only open mesh at the top of the gland is ok, don't tear down expansion, convenient and quick, so the mesh expansion is an ideal accessory products, water meter by the love of many tap water company.