3PE Steel Pipe
3PE anti-corrosive steel pipe (tube) is used in different working conditions, to slow or prevent pipeline outer medium under the action of chemical, electrochemical or eroded by microbial metabolic activity and metamorphism in the outer wall coating layer 2 or layer 3 polyethylene (PE) pipe in order to achieve anti-corrosive, 3 PE anti-corrosive pipe to extend the service life of 3-5 times.
Types of 3PE steel pipe
3PE anti-corrosive seamless steel pipe
3PE anti-corrosive straight seam steel pipe
3PE anti-corrosive spiral steel pipe
3PE anti-corrosive steel tubes for nuclear power
3PE anti-corrosive steel pipe for Water delivery
3PE anti-corrosive steel pipe for conveying natural gas
3PE anti-corrosive steel pipe for chemical and pharmaceutical use
3PEanti-corrosive steel pipe for coal mine
Reinforced grade 3PE anti-corrosive steel pipe
Anti-corrosion form of 3PE steel pipe
Type of corrosion protection for inner wall of steel pipe:
there are two kinds of corrosion protection for inner wall of steel pipe: one is hot melt epoxy resin powder corrosion protection (high temperature fusion), and the other is liquid epoxy coating, commonly used liquid epoxy IPN8710(cold spraying at room temperature).
Steel tube outer wall corrosion protection form:
3PE anti-corrosion generally consists of three layers:
First layer epoxy powder (FBE>100um)
The second layer of adhesive (AD) is 170~250um
The third layer of polyethylene (PE) is 2.5~3.7mm
In practice, three kinds of materials are mixed and integrated to form an excellent anti-corrosive layer by firmly combining them with steel tubes after processing. Its processing mode is generally divided into two types: winding type and circular mold cladding type. 3PE anti-corrosive steel tube coating, namely (three layers of polyethylene anti-corrosive coating), is a new kind of anti-corrosive steel tube coating produced by the ingenious combination of 2PE anti-corrosive coating in Europe and epoxy powder anti-corrosive steel tube coating (FBE) widely used in North America. It has been recognized and used all over the world for more than ten years.
The coating of 3PE anti-corrosive steel pipe is epoxy powder anti-corrosive coating on the bottom layer and the steel pipe surface, and the intermediate layer is copolymer adhesive with branch structure functional group. The surface layer is a high density polyethylene anti-corrosive coating. 3PE anti-corrosive coating combines the characteristics of high permeability and high mechanical properties of epoxy resin and polyethylene. So far, it has been recognized as the best anti-corrosion coating with the best effect and performance in the world, which has been applied in many projects.
3PE Steel Pipe Equipment
Main equipment for making 3PE anti-corrosive steel pipe: steel pipe buffering platform, pipe pulling unit, tractor, pipe piercing machine, high pressure blasting machine, repair platform, transmission line, steel pipe preheating furnace, shot blasting machine main engine overhaul table and split steel pipe return transmission line, fast forward roller group, fast forward roller, overhaul platform, etc. Anti-corrosive steel pipe anti-corrosive production line can be used for single layer FBE, double layer FBE, double layer PE, double layer PP and 3PE anti-corrosive steel pipe. Minimum processing diameter Φ 104 mm (4"), the largest processing diameter Φ 1600 mm (63"), the biggest processing capacity of 350 m2 / h above, this production line includes steel pipe transmission system, the surface treatment system, the tube body dust removal system, steel pipe heating system, electrostatic spraying system, coating system, water cooling system, cutting system, hydraulic and pneumatic system, testing system and electric control system, etc.
Advantages of 3PE steel pipe:
1.3PE anti-corrosive steel pipe pipe has a very high sealing property, long-term operation can greatly save energy, reduce costs, and protect the environment.
2. Strong corrosion resistance, simple and fast construction, and service life up to 30-50 years.
3. It also has good corrosion resistance and impact resistance at low temperature. PE has a low water absorption rate (less than 0.01%).
4. It also has high epoxy strength, low water absorption of PE and good softness of hot melt adhesive, etc., with high corrosion resistance reliability
