Asbestos Cement Pressure Pipes
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We are offering asbestos cement pressure pipes, asbestos cement (ac) pressure pipe is used primarily for potable water, as well as for sewer force mains and industrial effluent and process piping. Ac pipe was first introduced in north america in the late 1920s and became a common choice for potable water main construction from the 1940s to the 1970s. The use of ac pipe was largely discontinued in north america in the early 1980s but ac pipe is still a significant portion of the water distribution systems in many north american cities. asbestos cement (ac) pipe is manufactured from a mixed slurry of portland cement (80-85%) and a mixture of chrysotile asbestos fibres (15-20%). The slurry is dewatered using a rotary sieve cylinder and a very thin layer of asbestos cement is produced. This thin layer is wrapped around a mandrel under pressure until a pipe with the desired wall thickness is made. After curing, the ends of the pipe lengths are cut and finished to receive couplings that are produced by cutting larger diameter pipe into sections.