Fittings of polysulfone as the replacement brass inserts for PEX pipe joints
When installing pipes made of polyethylene, polypropylene, is normally used diffusion welding performed using simple and inexpensive equipment. This connection method does not require special skills and available to everyone. The design of the result is a completely sealed, and the welding process takes very little time. Thus, the connection is ready for operation immediately after cooling (2-3 min.). PVC fittings are generally used for sinks without pressure, so they are not welded together, and fastened with bells, rubber seals, less often – glue joints.
Use of PEX pipe fittings usually provides a significant economic effect: the cost of transportation and installation are reduced in comparison with steel pipes in a few times. The economic effect of the use of pipes and fittings, as compared with steel and cast iron is made up of savings on freight costs, reduced labor costs and waste during installation, cost of supplies, lack of expenditure in the period of operation, as well as a significant life – about 50 years. If all these data into account when determining the value of the pipeline and the estimates, the assembly made of pipes and fittings will provide cheaper by 15-20% compared with the pipeline, made of galvanized steel pipes.