The PVC straight tee connector is a durable and reliable plumbing fitting designed for joining three pipes of the same diameter.nPVC-C is a new engineering plastic with broad application prospects. The resin is produced by chlorination modification of polyvinyl chloride (PVC) resin and is a new type of engineering plastic. The product is white or light yellow, tasteless, odorless, non-toxic loose granules or powder. After PVC resin is chlorinated, the irregularity of molecular bonds increases and the polarity increases, which increases the solubility and chemical stability of the resin, thus improving the material's heat resistance, acid resistance, alkali resistance, salt, oxidant resistance, etc. corrosion. Improved the mechanical properties of the heat distortion temperature of the resin, the chlorine content increased from 56.7% to 63-69%, the Vicat softening temperature increased from 72-82 ℃ to 90-125 ℃, the maximum operating temperature can reach 110 ℃, long-term use The temperature is 95°C.