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KRUŠIK SPIRAL PIPES                                                               Serbian

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With the spiral winding technology "Krušik - plastika"a.d. from Osečina produces:


• profile wall pipes 
• full wall pipes 
• anchor teeth pipes
• fittings 
• manholes

For the production of KRUŠIK-SPIRAL pipes the following materials are used:
- High density polyethylene (HDPE) PE80  and  PE100
- Polypropylene (PPH, PPK and PPR)


High density polyethylene (HDPE) and polypropylene (PP) have outstanding mechanical properties, chemical resistance, electro-insulation properties, thermal insulation properties, UV stability etc.

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PROPERTIES
DIMENSIONS
MEASURING PROCEDURE
MEASURING VALUE
HDPE
PP
Density
gr/cm3
DIN 53 479
0,955
0,945
Stretching limit
Pa
DIN 53 455
24 x 106
32 x 106
Elongation at break
%
DIN 53 455
> 800
600
Impact toughness with notch
mJ/mm2
DIN 53 453
8
10,4
Elasticity modulus
Pa
DIN 53 453
8-9 x 108
10-17 x 108
Impact toughness
mJ/mm2
DIN 53 453
no breakage
no breakage
VICAT – Softening temperature
°K
DIN 53 460
333
358 - 363
Heat conduction coefficient
W/m°K
-
0,53
0,22
Coefficient of linear expansion
1/°K
-
2 x 10-4
1,5 x 10-4
Specific heat 20°C
KJ/kg°K
-
2,1
1,68
Poisson number
-
-
0,38
0,33

 

Properties of KRUŠIK-SPIRAL pipes

Properties of KRUŠIK-SPIRAL pipes are primarily the result of characteristics of the materials they are being made of.

plasticne-ceviKRUŠIK-SPIRAL pipes are light, which enables significant savings during transport, manipulation and installation. Pipes’ small weight is a especially significant advantage if the pipelines are installing on unapproachable area.

- Great advantage of these pipes is their flexibility (elasticity) which guarantees that the pipeline at small deformations will not be broken. Also, allowed diversion of the pipeline with a minimum bending radius is 150 D.

- Excellent resistance of KRUŠIK-SPIRAL pipes to aggressive media allows successful application in construction of pipelines for transport of wastewater and gas, construction of chimneys, etc.

- Connecting a plastic pipes with extrusion welding technique is provided absolutely sealing on the pipe connections. Pipe connections  sealed with rubber bands are waterproof  to a fluid pressure of 0,5 bar.plasticne-cevi

- Also, plastic pipes can be applied to the increased temperatures of the medium, up to 60°C for HDPE pipes and 100°C for PP pipes.

- Paraffin structure of the material allows that the pipes be used for hydraulic transport of abrasive matter.

KRUŠIK-SPIRAL pipes have a long service life, above 50 years and minor maintenance costs because it requires no maintenace of pipelines.

- Besides all these advantages, KRUŠIK-SPIRAL pipes have excellent hydraulic properties (relative roughness from 0,25 to 0,4mm) and allows greater water flow than pipes made of usual materials. 

KRUSIK-SPIRAL pipes have, according to their mechanical characteristics and extreme resistance to agressive media, wide range of applications especially for:

- pipelines for transport of industrial wastewater 
- fecal collectors
- rain sewage 
- ventilation pipelines 
- submerged sewage discharges 
- waste gas chimneys
- irrigation (dewatering) system

plasticne-ceviThe quality of KRUŠIK-SPIRAL pipes, as well as conditions of quality control, are defined by standard DIN 16961, EN 13476-1, and EN 9969. 
The instalation  is defined by standards DIN 4033 and EN 1610. 
The calculations  for the pipelines are made according to ATV A127 based on data provided by the Buyer. Pipes are produced in lengths of 6.0 m      
(i.e. 3m for diameters: 2300, 2500 and 3000 mm.)
The pipeline designer can make the selection of appropriate pipes for specific installation conditions. Pipes are manufactured on the basis of the calculated values of ring stiffness. If the selection is entrusted to Design - Technical Bureau of Krušik-plastika it is necessary to fill  the  questionnaire on the basis of which the calculation will be completed and quality of delivered pipes guaranteed.

Copyright © 2017 Krušik-plastika Osečina