Tap water pipe size

According to the PPR pipeline standard GB/T 18742, there are ten specifications of PPR pipeline outer diameter, including 20, 25, 32, 40, 50, 63, 75, 90,10, 160 (unit:)

S3.2 and S2.5 hot water pipes are domestic hot water pipes with PPR standard type and PPR type. If they are used for heating, you can use standard PPR. S4 and S5 are hot and cold water pipes.

Everyone generally uses four pipes (25mm in diameter and 3.4mm in thickness), and generally uses hot water pipes. PPR tube is divided into C tube and B tube, which is mainly related to working temperature. PP-R pipe, also known as type III polypropylene pipe, has the characteristics of light weight, corrosion resistance, no scaling and long service life.

Extended data:

PPR (polypropylene random), also known as random polypropylene (PPR), has the characteristics of good toughness, high strength, excellent processability and good creep resistance at high temperature, and has the unique advantage of high transparency of random polypropylene, which can be widely used in the production of pipes, sheets, daily necessities, packaging materials, household appliances and various films.

References:

PPR- Baidu Encyclopedia