Underground Pipe Relining

Underground Pipe Relining

Product Name API 5L Spiral Welded Steel Pipe/Sprial pipe/Spiral tube
Material Q235B, Q345, St37-2, St52, SS400, STK500, ASTM A53, S235JR, S335
Standard API 5L, API 5CT, GB/T3091, GB/T9711 EN10296
Surface Treatment Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare,
Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond
Epoxy, 3-layers PE)
Application oil and gas pipe, water pipe, low fluid transportation pipe, steel pilings
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Product Details

Product Details

underground pipe relining Prestressed concrete pipePipes with inner diameter of 400~1400 mm can be used in pipes with working pressure of 0.4~1.2 mpa.Maximum pipe diameter reaches 4000 mm when working pressure is less than 0.4 mpa


Brief Introduction

underground pipe relining


Nominal Diameter (mm)Wall Thickness (mm)







SDR41SDR33SDR26SDR21SDR17SDR13.6SDR11SDR9SDR7
PN4PN5PN6PN8PN10PN12.5PN16PN20PN25
20------------2.32.32.8
25----------2.32.33.03.5
32--------2.32.43.03.64.4
40------2.32.43.03.74.55.5
50----2.32.43.03.74.65.66.9
63----2.53.03.84.75.87.18.6
75----2.93.64.55.66.88.410.3
90----3.54.35.46.78.210.112.3
110----4.25.36.68.110.012.315.1
125----4.86.07.49.211.41417.1
140----5.46.78.310.312.715.719.2
160----6.27.79.511.814.617.921.9
180----6.98.610.713.316.420.124.6
200----7.79.611.914.718.222.427.3
225----8.610.813.416.620.525.230.8
250----9.611.914.818.422.727.934.2
280----10.713.416.620.625.431.338.3
3157.79.712.115.018.723.228.635.243.0
3558.710.913.616.921.126.132.239.748.5
4009.812.315.319.123.729.436.344.754.6
45011.013.817.221.526.733.140.950.361.5
50012.315.319.123.929.636.845.455.8--
56013.717.221.426.733.241.250.862.5--
63015.419.324.130.037.446.357.270.3--
71017.021.827.233.942.152.264.579.3--
80019.624.530.638.147.458.872.689.3--
90022.027.634.442.943.366.281.7----
100024.530.638.247.759.372.590.2----
120029.436.745.957.267.988.2------
140034.442.953.566.782.4102.9------
160039.349.061.276.294.1117.6------


Prestressed concrete pipe

Prestressed concrete pipe

Pipes with inner diameter of 400~1400 mm can be used in pipes with working pressure of 0.4~1.2 mpa.Maximum pipe diameter reaches 4000 mm when working pressure is less than 0.4 mpa.Adopt socket and socket joint and circular section rubber ring seal to stop water.There are two kinds of tube making technology: pipe core winding wire and vertical vibration extrusion.The mark of concrete shall not be lower than 400, and the high strength cold drawn steel wire shall be used for prestressed reinforcement.


Edit by Ms. Vicky of  CSPG

Contact us directly by:

Email: ella@cnspipe.com  ,vicky@cnspipe.net

Tel / Whatsapp: +86-180327140146

Skype: cnspipe002


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