1. Introduction:
PE service pipes are take polyethylene as the raw materials use
plastic extruder extrusion molding by once time.
2.Features:
Plus special additives to the service pipes made of PE have good
flexibility, impact resistance, the pressure-resistant,
corrosion-resistant, anti-aging, smooth wall, the small resistance,
highly insulated and so on. 1)Reliable Connection：between the Polyethylene water service
pipeline use of electric hot-melt way to connect.connect with other
pipes use flange, convenient and quick 2) Good low-temperature impact performance: The low-temperature
polyethylene embrittlement very low, safe use in -35-60temperature
range. In winter construction, materials with good impact
resistance, will not crack.3) Chemical Corrosion-resistant is fine:
HDPE pipes are resistant to variety media chemical corrosion, exist
in the Soil chemical substances to pipe will not have any
degradation effection.
4) Anti-aging, long life：With uniform distribution of carbon black
polyethylene pipe in an outdoor open-air storage or use of 50
years, will not suffer as a result of ultraviolet radiation damage.
5) Good bend character: HDPE pipes makes it easy to bend flexible,
engineering can change the channel to bypass the obstacles on the
way, on many occasions, the flexible pipe fittings to reduce the
amount of installation and lower cost.
6)Small flow resistance: HDPE pipe has a smooth inner surface, the
Manning coefficient of 0.009. The smooth surface and non-adhesion
properties of HDPE pipes to ensure a more traditional pipe with a
higher transmission capacity, but also reduces the pressure on the
pipeline and the loss of water energy.
3.Application:
Used in urban water distribution network, irrigation water
diversion project, field waste disposal, pollution-control projects
Nerita spray irrigation and agricultural engineering plastic pipe.
As the use of PE pipe hot, hot-melt electric connection, the
realization of the interface with the integration of the pipe, and
an effective resistance to pressure arising from the ring to the
impact of stress and axial stress, and PE pipe does not add salt,
heavy metal stabilizers, non-material Toxic, non-scaling,
non-breeding of bacteria, avoiding secondary pollution of drinking
water.
4. Transit:
Convenient transportation, HDPE pipes than concrete pipes,
galvanized steel pipe and tube lighter, easier handling and
installation, engineering, installation costs greatly reduced.
5. Construction:
Construction methods varied, HDPE water pipe can be used in
addition to the traditional way of excavation works, but also can
be a variety of new technologies such as trenchless pipe jacking,
directional drilling, pipe lining such as construction, the HDPE
pipe broader applications. 6.PE service pipes specification | Item | |
Specification | Appearance | | The pipe inside and outside surface should be clean, smooth, does
not allow air bubbles, visible scratches, dents, impurities,
defects such as uneven color. Tube should be cut-side formation,
with a vertical axis control. | Elongation at break
% | | ≥350 | | Oxidation induction timemin（2000C） | | ≥20 | | Vertical size of the rate of retraction%（1100C） | | ≤3 | | Hydrostatic Strength | PE80 | 1.200C, ring stress9.0MPa100h,no crack, no leakage
2.800C,ring stress 4.6MPa165h, no crack, no leakage3.800C,ring
stress 4.0MPa1000h, no crack, no leakage | | PE100 | 1.200Cring stress 12.4MPa100h, no crack, no leakage
2.800Cring stress 5.5MPa165h, no crack, no leakage3.800Cring stress
5.0MPa1000h, no crack, no leakage |
7.PE service pipes －PE80 According to GB/T 13663－2000 standard Nominal
out diameter
mm | SDR 33 | SDR 21 | SDR 17 | SDR 13.6 | SDR 11 | | Nominal pressure PN, Mpa | | 0.4 | 0.6 | 0.8 | 1.0 | 1.25 | Nominal
thickness | Weight
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