- Country of manufactureKazakhstan
Pipes of the polyethylene low pressure (PLP) can be used both when laying the main water routes, and at arrangement of water supply in a house or the apartment. Thanks to low cost, unlike metal, during repair many replace with PND traditional pipes from metal.
Parameters of pipes PND
Polyethylene pipes in the parameters which I define area of their application are subdivided into several groups. Parameters three:
— brand of the polyethylene used by production;
— SDR value (a ratio of thickness of walls to diameter): the more SDR indicator, the is thinner a wall.
Polyethylene pipes for water supply generally happen two brands – PE80 and PE 100 and are issued from high-quality polyethylene of low pressure and average density according to GOST 18599-2001. These brands possess a number of the positive characteristics allowing to use them for transportation of drinking water, laying of underground and pressure head pipelines.
PE80 is used for laying of a water supply system under water and roads. PE100 is used for laying of the main lines of cold water supply.
Main characteristics and properties of pipes PND
— well transfer hard frosts, to minus 700 C;
— diameter is within 16-1000 mm;
— working pressure, depending on brand of 4-20 bars;
— pipes which diameter does not exceed 160 mm. are made, as a rule in bays;
— the term of operation of PND — about 50 years;
— additional processing when laying in marshy sites and the earth is not required;
— possess the increased resistance to a mold and fungi;
— water when freezing in pipes does not break off them thanks to elasticity of material;
— are vulnerable under the influence of sunshine as polyethylene under the influence of an ultraviolet loses the elasticity, becoming fragile;
— meet sanitary standards.
Important! Pipes PND are not used in hot water supply and heating as are intended for systems in which water temperature does not exceed 650 C.