The commonly used PVC tube specifications and models：
PVC line tubes： DN16, DN20, DN25, DN30, DN40, DN50, DN75, DN90，DN110.
PVC drainage pipes：DN 40, DN50, DN75, DN90，DN110，DN160，DN200，DN250，DN315，DN400，DN500
PVC water pipes：DN20, DN25, DN32, DN40, DN50,DN63, DN75, DN90，DN110，DN160，DN200.
PVC tube (UPVC pipe) rigid polyvinyl chloride pipe is made of polyvinyl chloride resin and stabilizer, lubricant, etc. after hot pressing, it is the first developed plastic pipe. The UPVC pipe has strong corrosion resistance, easy adhesion, low price and hard texture. But because of UPVC monomer and additives exudation, it is only suitable for the water supply system with a temperature of less than 45 C.