Products
   PP-R Pipes & Fittings
        Product Range
   PE-X Pipes
        Product Range
   U-PVC Pipes & Fittings
        Product Range
   Spira Pipe


     Agent Login
   U:
   P:   


   Search Product
    

    

Products - PE-X PIPES

Permissible Operating Pressure
Projected Service Life

The following table provides more detailed information with regards to the permissible pressure of various temperatures. These values are derived from the hoop stress chart and formula. Under normal working pressures and conditions, the average service life of Vesbo PE-X pipes is projected to be 50 years or more. A PN 20 hot water pipe, transporting water at a temperature of 95oC can last for more than 50 years under normal conditions with an operating pressure of 8.2 Bars.

Permissible working pressure of Vesbo PE-X pipes (DIN 16893)

Temperature (oC) Years of service
Pressure rating (Bar)
PN 12.5 PN 20
20 1
13.7 21.7
  10
13.2 21.0
  50
12.5 20.0
40 1
11.0 17.5
  10
10.7 16.9
  50
10.4 16.5
60 1
8.7 13.8
  10
8.3 13.1
  50
8.1 12.9
95 1
5.7 9.0
  10
5.4 8.6
50
5.3 8.2

Where as

A PN 12.5, hot water pipe, transporting water at a temperature of 60oC can last for more than 50 years under normal conditions with an operating pressure of 8.1 Bars.

Product Range

PN 12.5 ( DIN 16893 )
Size (mm) Thickness (mm) ID (mm) Weight (kg/m)
16 1.8 12.4 0.083
20 19 16.2 0.111
25 2.3 20.4 0.169
32 2.9 26.2 0.268

PN 20 ( DIN 16893)
Size (mm) Thickness (mm) ID (mm) Weight (kg/m)
16 2.2 11.6 0.098
20 2.8 14.4 0.153
25 3.5 18.0 0.238
32 4.4 23.2 0.382

Linear Expansion

For transportation of hot water, like all metal or plastic pipes, we have to deal with its linear expansion.

The coefficient of linear expansion for Vesbo PE-X pipes is 2.10-4(K-1)

By calculation Formula:

r I =µx L x rt

Where:

rI =

linear expansion,mm
 

 µ =

coeff.of linear expansion,constant
For Vesbo PE-X pipes 0.20 mm/mK
 

  L =

 pipe length,m
 

rt =

temperature difference between normal water
temperature and desired operating hot
water temperature,K

Example

Pipe has a length of 1.5 m normal cold water temperature is 25oC and hot water from water heater is set at 60oC.

r I =µ L x rt
= 0.20 x 1.5 x 35
linear expansion is 7.88˜8 mm


Application Areas

1.Sanitary Applications

a.Installation by using collectors: This method of installation allows the plumbers to lay the pipes from the collector directly to the consumption points. The number of fittings used is minimized, as a result the installation time is shorter and the fittings cost is lowered.



b.Installation without using collectors: This method is preferred to save space from the collector point. T parts are used to branch off. The length of pipes is used in system is minimized through this type of installation.



2.Underfloor Heating



3.Radiator Heating