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Implementation of pipelines

For the practical implementation of plastic pipelines it is necessary to keep in mind that compared to steel pipes plastic pipes have significantly different values of mechanical and physical properties.

The method of implementation and mounting of the pipes must correspond to these properties in order to eliminate the possibility of defect or accident in the pipeline and thus the risk to health and life of people. In particular, it is the following group of technical solutions:

  • distance of supports and various methods of mounting of pipes
  • length expansivity and retraction and their compensation
  • plastic – metal transitions
  • material combination etc.

Given that plastic pipes are not self-supporting, it is necessary for them, unlike for steel pipes, to be either hardened or more frequently supported.

FV PLAST delivers galvanized steel gutters that fit into the pipes under their insulation. This whole set is mounted by sliding or fixed sleeves. The pipes are optically flat (they do not bend down). However, in the areas where the pipe turns, the gutter must be shortened so that the pipe is not damaged due to temperature expansion.

Pipe Ø (mm)162025324050637590110
Maximum distance between supports (cm)110120140145150155165170190205

Values of STABI pipe support distance

Pressure
line
Pipe Ø
(mm)
Support distance 1 (cm) at a temperature of the transported medium
20 °C30 °C40 °C50 °C60 °C80 °C
PN 1016908585808065
20959085858070
25100100100959085
3212011511511010090
40130130125120115100
50150150140130125110
63170160155150145125
75185180175160155140
90200200185180175150
110220215210195190165
PN 1616807575707060
20908080807065
25959595908075
321101051051009580
4012012011511010595
50135130125120115100
63155150145135130115
75170165160150145125
90180180170165160135
110200195190180175155
PN 2016757070656555
20807570706560
25858585807570
321009595908575
401101101051009585
5012512011511010590
63140135130125120105
75155150145135130115
90165165155150154125
110185180175165160140

Values of PP type 3 pipe support distance in relation to the temperature of the transported medium.