PPR also known as the three type polypropylene pipe or PP-R pipe or PP-R pipe, PPR pipe English name (polypropylene random), PP-R pipe energy saving and environmental protection, lightweight rigidity, corrosion resistance, with smooth inner wall has the advantages of scale, construction and easy maintenance, long service life, widely used in building water supply, air conditioning into the backwater industrial fluid transportation, agricultural irrigation construction, municipal, industrial and agricultural fields. PPR pipe is divided into cold and hot water pipe, the specification is dn20-dn160, cold water pipe has two levels of S4, S, namely 1.6Mpa and 1.25mpa, hot water pipe is S3.2 and S2.5 two levels, namely 2.0MPa, 2.5mpa.
