APPLICATION OF RHDPEp PIPES
Thick-walled polyethylene culvert pipes (RHDPEp) are intended for use at close-ups and intersections of telecommunication lines with other field utilities and for crossing water obstacles.
BASIC ADVANTAGES OF RHDPEp PIPES
* long service life,
* high mechanical strength,
* corrosion resistance,
* good flexibility
RAW MATERIAL DATA
Material: HDPE polyethylene
* density – minimum 0.941 g / cm3
* MFR flow coefficient (temperature 190 ºC / 5 kg) – from 0.3 – 1.3 g / 10min
* relative elongation at break -> 350%
* Oxidation induction time at 200 ºC -> 20min
The outer and inner surface of the tube is smooth, free from inclusions and irregularities. The color of the pipes is homogeneous without streaks and scratches. RHDPEp pipes are produced in black.
PHYSICAL PROPERTIES OF RHDPEp PIPES
Pipe ovality +/- 2% D, where D is the nominal pipe diameter.
The internal pressure resistance is at least 1 MPa for 30 minutes.
Impact strength – sections of pipes 20 cm long placed in a V-shaped groove with a span of 120 ºC, impacted with a 3 kg weight, from a height of 1 meter, at -20 ºC, do not show any cracks.
Dimensional stability – the relative diameter of the pipe length change after heating at 110 ºC is not greater than 3%.
Pipes should be stored on a flat surface, horizontally secured with wooden inserts (wedges) against rolling. The height of the pipes’ storage should not exceed 1.5 m. Pipes can be stored outdoors for a period not longer than 2 months from the date of production without any additional protection.
Storage for a period longer than 2 months requires the protection of the products against the influence of ultraviolet radiation. It is forbidden to stay with open fire near the stored products.
If the pipes are covered with tarpaulins that do not let the light through, ensure good ventilation of these products.
PRINT ON THE PIPES
The inscriptions on the pipes are made using the ink method, e.g .:
Manufacturer’s mark: MTB
Type (material) designation: RHDPEp
Dimensions outer diameter x wall thickness: 110×6,3
Designation of ring stiffness: SN 450N
Technical Approval No.: KDWU 03/07/2020
Production identification (date and time): 18/02/17. 08:32
It is possible to print the name of the ordering party.