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Model:DN15-DN300

Feed water coated with plastic composite steel pipe Feed water lined with plastic composite steel pipe Major engineering achievements

The water-coated composite steel pipe is made of high quality hot-dip galvanized steel pipe made by the company as the matrix, and the polymer material is sucked (sprayed) on the inner wall of the steel pipe by vacuum suction (spray) coating process. The product quality conforms to GB/T28897, CJ/T120 standards, and the health performance conforms to GB/T17219 standards. It is suitable for drinking water and industrial water.

Technical parameters

Specification:
DN15-DN200
Wall thickness:
2.6 mm to 6.0 mm
length :
2.8 m to 6 m 
Standard :
GB/T 28897, CJ/T 120 Objective
Material:
Q195, Q215A, Q215B, Q235A, Q235B, Q355, 20#; Plastic: PE
Product Performance

  • Strong corrosion resistance

    The conveying fluid is completely isolated from the metal body, only in contact with the coating, which has excellent corrosion resistance and prolongs the service life of the pipeline.

  • High mechanical strength

    Plastic coated steel pipe and hot dip galvanized steel pipe have the same mechanical strength, impact, bending and pressure has a high tolerance, the use of pressure range of ≤1.6MPa, seamless steel pipe >1.6MPa.

  • Excellent hygiene performance

    The coating is made of food grade polyethylene or epoxy resin powder, and the sanitary performance is in line with the national standard of drinking water transmission and distribution.

  • Small fluid resistance

    The inner wall of the plastic coated steel tube is smooth, the friction coefficient is small, the flow rate is fast, the scale is not accumulated, and the fluid resistance is small.
Main physical and chemical properties
Serial number item    mu Sex   Can   To be   o
1 Coating adhesion Test with the pull method, ≥30N/10mm
2 pinhole test No electric spark breakdown occurs
3 Bending test (nominal aperture ≤50mm) The coating does not peel and break
4 Flattening test (nominal aperture ≥65mm) The coating does not peel and break
5 Impact test The coating does not peel and break
6 Hygiene performance Meet the requirements of "Standard for Health and Safety Evaluation of Drinking Water transmission and Distribution Equipment and Protective Materials" (2001)

Note: When measuring adhesion, if the film breaks, it is considered to have sufficient adhesion.

The plastic composite steel pipe is made of high quality hot dip galvanized steel pipe made by the company, and the plastic pipe is lined on the inner wall of the steel pipe by using the advanced technology of medium frequency heating, and the epoxy layer can be coated to strengthen the anti-corrosion. The product quality conforms to GB/T28897, CJ/T136 standards, and the health performance conforms to GB/T17219 standards. It is suitable for drinking water and industrial water.

Technical parameters

Specification:
DN15-DN300
Wall thickness:
2.8 mm to 9.0 mm
length :
2.8m-6.0m
Criteria:
GB/T 28897, CJ/T 136 Objective
Material:
Q195, Q215A, Q215B, Q235A, Q235B, Q355, 20#; Plastic: PE, PE-X
Product Performance

  • Strong corrosion resistance

    The conveying fluid is completely and effectively isolated from the metal body, only in contact with the plastic layer, which has good corrosion resistance and prolongs the service life of the pipeline.

  • High mechanical strength

    Lined plastic steel pipe and hot dip galvanized steel pipe have the same excellent mechanical strength, the impact, bending and pressure has a strong bearing force, the use of pressure range of ≤1.6MPa, seamless steel pipe >1.6MPa.

  • Excellent hygiene performance

    The lining layer is made of food-grade plastic, and the sanitary indicators are in line with the national standards for the transportation and distribution of drinking water.

  • Small fluid resistance

    Liner plastic steel tube wall smooth, friction coefficient is small, fast flow, no accumulation of scale, fluid resistance is small.
Main physical and chemical properties
Serial number item     mu Sex   Can   To be   o
1 Appearance The inner and outer surface of the steel pipe is smooth, and the welding bar is pulled out inside the steel pipe, and the residual height is not greater than 0.5mm. There are no bubbles, cracks, peeling, obvious marks, depression, uneven color and decomposition discoloring lines on the inner surface of the lining plastic steel pipe.
2 Bond strength Liner plastic pipe between steel and plastic should not be less than 1.5MPa (150N/cm2)
3 Bending performance Pipe diameter less than or equal to 50mm lining plastic steel pipe after bending no crack, no separation between steel and plastic phenomenon
4 Flattening performance Pipe diameter greater than 50mm lining plastic steel pipe after flattening does not crack, no separation between steel and plastic phenomenon
5 Hygiene properties The HYGIENIC PERFORMANCE OF THE LINED plastic pipe shall conform to the requirements of the Hygienic Safety Evaluation Specification for Drinking Water Transmission and Distribution Equipment and Protective Materials (2001)
6 Resistance to hot and cold cycle test The lining plastic pipe specimen used for conveying hot water has been tested by three cycles of cold and hot cycles, and the lining plastic layer has no defects such as deformation cracks, and its bond strength is not lower than the value in Article 2 of this table

Product Performance

Main achievements

Urban pipe network project of Beijing Water Supply Company Nanning city tap water one meter project
Shanghai Expo Park water supply project Guilin tap water one meter project
Shanghai Shibei secondary water supply renovation project Qinzhou city tap water a meter project
Shijiazhuang Water Conservancy Group Pipe network project Liuzhou tap water a meter project
Guangzhou water pipe network water supply project Hefei tap water secondary water supply project
Shenzhen water mains supply Project Wuhu Huayan water pipe network project
Foshan water city pipe network project Nanjing Water pipe network project
Shunde water city pipe network project Suzhou Water pipe network project
Datong Water Supply and Drainage Network Project
Pipe Network Project of Wuxi Water Supply Co., LTD.
Chongqing Sino-French Water Supply Pipe Network Project
Pipe Network Project of Jinan Water Conservancy Group
Chongqing Water Supply Pipe Network Project
Fuzhou Tap Water Household one meter project
Chengdu Tap Water Household One Meter Project
Ningde Water Pipe Network Project
Kunming Tap Water Household One Meter project
Nanping Tap Water Project of one household and one meter
Pipe Network Project of Zhengzhou Water Investment Co., LTD.
Pipe Network Project of Hangzhou Water Industry Group
Wuhan Water Pipe Network Project
Huzhou Water Pipe Network Project
... ...

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