Pipes and fittings for the outdoor sewerage 

Nowadays the plastic pipes used for sewerage are applied habitually not occasionally. Their advantages result in better cost, as well as performance parameters versus the cast-iron ones.  Plastic sewage pipes meet all requirements of modern indoor and outdoor sewerage.

The plastic sewage pipes are the most cost-effective solution for any real estate item.  The assembling of such pipes requires no optional equipment; the transportation is costless due to the material lightweight.  Reliability and long service life are the key advantages of plastic pipes, which are resistant to a corrosive medium impact; sustain heavy mechanical loads. Besides the plastic pipes are completely leaktight and possess high carrying capacity.

The PP-R pipes are considered the perfect ones among all plastic sewage pipes. The polypropylene pipes are corrosion-resistant (unlike polyvinylchloride and polyethylene) and sustain high-temperatures (more 90°С) of effluents very well.

The PP-R pipelines serve longer. Considering the minimum costs for maintenance their service life achieves 50 years or more.    The undeniable advantages of polypropylene pipes specify their choice during utilities systems arrangement.


The basic mechanical and thermal behavior at 20°С

Property

Method

UOM

Value

Density

The National Standard GOST 15139-69

g/cm³

>0,91

Linear expansion factor

The National Standard GOST 15173-70

 

1,5×10´

Tensile yield limit

The National Standard GOST 11262-80

MPa

25-28

Rupture strength

The National Standard GOST 15173-80

MPa

28-35

Elongation at failure

The National Standard GOST /1262-80

%

>100

Conductivity

The National Standard GOST 23630-79

W/m °С

0,26


Chemical resistance of polypropylene sewage pipes

Chemical

Concentration, %

20°С

60°С

100°С

Acetone

100

r

cr

 

Aniline

100

r

cr

 

Butane, bottled

100

r

   

Butane, gas

100

r

r

 

Calcium chloride

Standard

r

r

r

Calcium nitrate

Standard

r

r

 

Liquid  chlorine

100

n

   

Gaseous chlorine, crude

10

cr

   

Chloroform

100

cr

   

Chromium trioxide

Standard

r

n

 

Glycerine

100

r

r

 

Glycol alcohol

100

r

r

 

Hexane

100

r

cr

 

 

r - resistant, cr – conditionally resistant, n – non-resistant

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