Anti-corrosion Three-layer Coated Steel Pipe

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HOME - PRODUCTS - Steel Pipe - Anti-corrosion Composite Pipe with Flexible Socket Connection

Anti-corrosion Composite Pipe with Flexible Socket Connection

Highly flexible socket-type plastic-coated steel pipe uses high-quality steel pipe as the base pipe.One end of the pipe end is beveled and the other end is flared and then plastic-coated.The T-shaped rubber ring with the same structure as the ball mill pipe is directly socket and connected.On the basis of retaining the advantages of plastic-coated steel pipes,it inherits the advantages of fast and flexible socket interface of ductile iron pipes,and complements the advantages of the two.

Heavy anti-corrosion steel pipe—— Anti-corrosion Composite Pipe with Flexible Socket Connection

The High-quality steel pipe is used as the base pipe,and a layer of expoxy resin material is coated on the inner and outer surfaces of the pipe through the thermal fusion process.

Performance Characteristics

No.	Item	Technical Index
1	Flattening test	Pressed to 4/5 of the outer diameter of the pipe, the inner coating has no cracks or peeling
2	Bending test	≤DN50, 8 times the outer diameter bending, no cracks or peeling in the inner coating
3	Drop weight impact	The inner coating has no cracks or peeling, and the requirements of Table 7 of CJ/T120-2016 are specifically implemented.
4	Adhesion	Outer wall: ≥100N/cm at 20℃, ≥70N/cm at 60℃
4	Adhesion	Inner wall: Adhesion is not less than level 3
5	Surface resistance,Ω	Pipes for water supply and drainage: the arithmetic mean value of the outer wall surface resistance should not be greater than 1.0×10⁹
		Positive pressure air duct: the arithmetic mean value of the surface resistance of the inner and outer walls should not be greater than 1.0×10⁸
		Gunite pipe: the arithmetic mean value of the surface resistance of the inner and outer walls should not be greater than 1.0×10⁸
		Negative pressure air duct: the arithmetic mean value of the surface resistance of the inner and outer walls should not be greater than 1.0×10⁶
		Gas drainage pipe: the arithmetic mean value of the surface resistance of the inner and outer walls should not be greater than 1.0×10⁶
6	Alcohol blowtorch burning	The arithmetic mean of the flaming burning time of the six samples should not be greater than 3s, and the flaming burning time of any one of the samples should not be greater than 10s.
6	Alcohol blowtorch burning	The arithmetic mean of the flameless burning time of the six samples should not be greater than 20s, and the flameless burning time of any one of the samples should not be greater than 60s.