Problems in IPS(PPH) pipeline installation
Problems in PPH(IPS) pipeline installation As there is no national code for design and construction acceptance of IPS(PPH) pipes and fittings, problems are easy to occur in use. According to the experience in construction supervision, the following problems should be paid attention to in construction supervision of IPS(PPH) pipes and fittings: 1. Selection of IPS(PPH) pipes and fittings: IPS(PPH) pipes and fittings (homopolymer polypropylene pipes), whose raw materials are β modified, have uniform and fine beta crystal structure, have high chemical [...]