Coefficient of hydraulic friction of plastic pipes

Pressure systems are widely used in almost all areas of the public economy related to liquids. For example, at present, supply drinking water populated world, heating systems, agriculture, cleaning basins from muddy flows, mining industry, construction, raising chemical process moving flows same speed, pipeline viscous efficient being for transportation and many other purposes. Recently, plastic pipes have been production. Such cheap, light, resistant various decays, their installation is relatively easy. One main problems hydraulic calculation pressure determination coefficient friction. scientists working field improving calculations such pipelines. Yet, there still a lot theoretical experimental research be done. The article presents method determining friction laboratory conditions.