Build Daily

Engineering Systems

August 12, 2017 18:08

Pressure plastic pipes and their opponents - what to choose?

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Polyethylene pipes - general information

Today, plastic pipes are so widespread that the diversity of species has dozens.They are classified according to several criteria: on application, OD, to admissible bending radius, at the working pressure and so on.

By application area distinguished polyethylene pipes for external water supply, gas supply, sewage system, underfloor heating, domestic water pipe systems and many others.According to the operating pressure, this material is classified as follows: polyethylene pipe pressureless, pressurized and negative pressure.

Pressure and non-pressure polyethylene pipes

name "free-flow" speaks for itself.This type of communication is used for the system, the maximum working pressure not exceeding 0.15 MPa.Earlier non-pressure water supply pipes are widely used in various materials, but now, along with metal and asbestos cement, steel and pipes used more non-pressure polyethylene, GOST R 50838-2009 permits their use even when laying heating systems.Such funds are used mainly in gravity sewer systems, drainage, drainage.

Pressure Polyethylene pipe of low pressure are divided into three types: PE100, PE80, PE63.They differ branded polyethylene and field of application.PE100 and PE80 recognized new generation material, and the range of their application is much wider than that of PE63.They are much stronger, because can withstand greater pressure.They are used in sewer, gas and water systems.PE63 is often used to protect electric cables routed a bit less - in the sewer systems.

characteristics of polyethylene pipes

It is due to their properties of polyethylene pipe have become so popular.They are much lighter than steel, have good elasticity.For the laying of such pipes need a narrow trench, or it does not need at all.Easy to install multiple speeds laying the network.Production, cost and transportation of such pipes is much cheaper than steel, cast iron and asbestos cement.

Polyethylene pipes for water supply do not require any control, require minimal maintenance, are easily dismantled.Due to their elasticity, they will function reliably even under mechanical loads.

Plastic pipes have a higher insulating properties, are not subject to corrosion, and freezing the water inside will not affect the properties.When dynamic loads are able to recover their shape without permanent deformation.Maximum smoothness of the inner surface and passive to prevent the accumulation of biochemical environments colonies of microorganisms and the formation of layers, which increases the total time of operation of the entire system.

Almost the only drawback of these communications is reduced mechanical strength of the squeezing, but otherwise, they perfectly fulfill their functions and serve for the benefit of mankind.

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