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HDPE MUNICIPAL PLUMBING SYSTEM

The REFENG HDPE water supply pipe is a new type of plastic pipe with high-quality polyethylene raw material, adding necessary antioxidants, ultraviolet absorbers and other additives, and processed by an extruder. The product has the advantages of flexibility, corrosion resistance, lightweight and excellent impact resistance.
The connection of the pipe and fittings can be integrated with butt welding, hot-melt socket and electrofusion. And the system is safe, reliable and low in cost, which has been widely used in engineering.

 

Technical specification

Advantages:
  • Anti-aging, service life up to 25 years
  • Low-temperature resistance, impact resistance
  • Excellent resistance to stress cracking
  • The smooth inner wall, low water flow resistance
  • Multiple construction methods, reliable connection

Applications:
  • Urban water supply
  • Reconstruction of the water supply network in the old city
  • Industrial raw material transportation
  • Ore and mud transportation
  • Agricultural irrigation
Outside diameter (mm)  
 
PE100 Wall thickness(mm)
SDR26 SDR21 SDR17 SDR13.6 SDR11
PN0.6 PN0.8 PN1.0 PN1.25 PN1.6
20 - - - - 2.3
25 - - - 2.3 2.3
32 - - 2.3 2.4 3.0
40 - 2.3 2.4 3.0 3.7
50 2.3 2.4 3.0 3.7 4.6
63 2.5 3.0 3.8 4.7 5.8
75 2.9 3.6 4.5 5.6 6.8
90 3.5 4.3 5.4 6.7 8.2
110 4.2 5.3 6.6 8.1 10.0
125 4.8 6.0 7.4 9.2 11.4
160 6.2 7.7 9.5 11.8 14.6
180 6.9 8.6 10.7 13.3 16.4
200 7.7 9.6 11.9 14.7 18.2
225 8.6 10.8 13.4 16.6 20.5
250 9.6 11.9 14.8 18.4 22.7
280 10.7 13.4 16.6 20.6 25.4
315 12.1 15.0 18.7 23.2 28.6
355 13.6 16.9 21.1 26.1 32.2
400 15.3 19.1 23.7 29.4 36.3
450 17.2 21.5 26.7 33.1 40.9
500 19.1 23.9 29.7 36.8 45.4
560 21.4 26.7 33.2 41.2 50.8
630 24.1 30.0 37.4 46.3 57.2
710 27.2 33.9 42.1 52.2 64.5
800 30.6 38.1 47.4 58.8 72.6
900 34.4 42.9 53.3 66.2 81.7
1000 38.2 47.7 59.3 72.5 90.2
1200 45.9 57.2 67.9 88.2 -

No.

Item

Index
1
Elongation at break

≥350%
2
Longitudinal retraction rate

≤3%
3
Oxidation induction time

≥20min
4
Melt mass flow rate
The change rate of pipes and
raw materials does not exceed 25%


5


Hydrostatic strength
(PE80/PE100)

20℃,100h

Ring Stress:9.0/12.4MPa
No rupture, No leakage

80℃,165h

Ring Stress:4.6/5.5MPa

80℃,1000h

Ring Stress:4/5.0MPa
 

No.

Item

Index

1

Oxidation induction time

≥20min

2

Melt mass flow rate
The change rate of pipes and
raw materials does not exceed 20%

3

Welding strength of electrofusion pipe fittings

Percentage of brittle failure≤33.3%

4

Socket fittings-welding strength of butt welded fittings

Test failure is toughness
5
Impact strength of saddle bypass

No rupture, no leakage
6
Hydrostatic strength
(PE80/PE100)

20℃,100h

Ring stress:10.0/12.4MPa

No rupture, no leakage

80℃,165h

Ring stress:4.5/5.4MPa

connection method

Applicable specifications

Main connection tools

Operation scene


Hot melt socket


dn20~dn110


Hot melt socket machine


Only need a small space, can be used for indoor and outdoor construction


Butt Fusion


≥dn63 


Butt Fusion Machine


Need more space, recommended for outdoor construction


Electrofusion


All specifications


Electrofusion welding machine


Only need a small space, can be used for indoor and outdoor construction


When connecting with other material pipes, flanges, threads, steel wire adapters, and other connection methods can be used
HDPE
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