The PB male coupling uses high-quality pb material, which has the advantages of easier adhesion, soft texture, acid resistance, alkali resistance, corrosion resistance, moisture resistance, and good water tightness. The pipe wall of the joint is smooth, and the resistance to fluid is small. Its water capacity can be increased by 20% compared with the same cast iron pipe and 40% compared with the concrete pipe, so it has poor tensile and compressive strength.
website:http://www.amico-pipes.com/pb-....pipe-system/pb-fitti