Polyurethane seamless insulation steel pipe

- Jan 23, 2021-

       In areas with high groundwater levels, in order to ensure that groundwater does not affect the normal operation of the direct buried pipeline, the outer protective layer is made of a strong, sealed steel casing. The so-called upper hydrophobicity is to pass the condensed water in the pipeline through the hydrophobic pipe inserted into the working steel pipe, and the condensed water in the water collecting tank utilizes the back pressure in the pipeline to discharge the condensed water from the upper part of the pipeline.

Product Description

Product Name:

API 5L GrB X52 3PE Anti-corrosion insulation pipe


API 5L, ASME, ASTM B36, JIS, DIN, GB8162, GB8163, GB5310, etc.


ASTM A106 GRB/ A53 GRB/ A192/A179/API 5L GRB/ X42 /X52 /Q345/ ST42/ST37/ ST52/GB816320#

Pipe Type:

seamless steel pipe

Production Process:

hot-rolled and cold-drawn

Out Diameter:

DN15~DN900, 1/2"~36", 21.3mm~916mm

Surface treatment:

Black painting, black varnish, transparent oil, hot galvanized, 3PE, epoxy coating, BE, PE. Etc.


1. Electric industry
2. Chemistry industry
3. Petroleunm and natural gas industry
4. Boiler Pipe
5. Casing Tube
6. Low and middle pressure fluid transportation pipeline

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Part of Certificates


High quality

Passed the ISO9001:2008 quality system authentication .

High quality

Passed the ISO14001:2002 quality system authentication 

High quality

Passed the OHSAS 18001:2007 quality system authentication.