Large Diameter 3lpe Oil Pipeline Spiral Welded Steel Pipe Anti Corrosion

Product Specification

Large Diameter 3LPE Oil Pipeline Anti Corrosion Spiral Welded Steel Pipe

Spiral Steel Pipe
It is made by rolling low-carbon carbon structural steel or low-alloy structural steel strip according to a certain spiral angle (called forming angle) into a tube blank, and then welding the tube seam together. It can be made with a narrower Strip steel produces large diameter steel pipes. Its specifications are expressed by outer diameter * wall thickness, and the welded pipe shall be ensured that the hydraulic test, the tensile strength of the weld and the cold bending performance must meet the requirements.

Advantages of spiral welded pipe:
(1) Steel pipes of different diameters can be produced using strip steel of the same width, and
steel pipes of large diameter can be produced from narrow strip steel.
(2) Under the same pressure conditions, the stress of the
spiral welded seam is smaller than that of the straight seam, which is 75% to 90% of that of the straight seam welded pipe, so it can withstand greater pressure. Compared with the straight seam welded pipe of the same outer diameter, the wall thickness can be reduced by 10% to 25% under the same pressure.
(3) The size is accurate, the general diameter tolerance does not exceed 0.12%, the deflection is less than 1/2000, and the ovality is less than 1%. Generally, the sizing and straightening process can be omitted.
(4) Continuous production is possible. In theory, long steel pipes can be produced, with small head and tail loss, and can
increase the metal utilization rate by 6% to 8%.
(5) The equipment is light in weight and low initial investment. It can be made into a trailer-type mobile unit to directly produce welded pipes at the construction site where the pipeline is laid.
The production of spiral welded steel pipes can reflect the advantages of high quality and high efficiency. The production capacity of one spiral welded pipe unit is equivalent to 5-8 sets of straight seam welded pipe equipment. How to make multiple pipe coiling equipment production lines meet the same production standard, that is, produce according to a unified production process specification and quality assurance system to meet welding quality Requirements and piping manufacturing grades will be an arduous task.

Product Description

Main Application:
1. Piling pipe;
2. Construction;
3. Water, Oil, Gas transportation;
4. Hydropower station pipe (Hydraulic Pipe);
5. Spiral welded steel pipes, which with Large diameter and strong supply ability are widely used in construction and fluid transportation.
Note:
1. Free sampling;
2. API 5L, ISO certified;
3. 100% after-sales quality assurance.
4. Quickly reply within 24 hours.
5. All other specifications of spiral welded steel pipes are available according to your requirement !
Pipes can be Customized according to customer's requirement on outside diameter and wall thickness with Galvanized coated or black painted(3PE, FBE, 3PP) surface treatment.

3PE anticorrosion generally consists of 3 layers:

The first layer of epoxy powder (FBE>100um)

The second layer of adhesive (AD) 170~250um

The third layer of polyethylene (PE) 1.8~3.7mm

In actual operation, the three materials are mixed and integrated, and after processing, they are firmly combined with the steel pipe to form an excellent anti-corrosion layer. Its processing methods are generally divided into two types: winding type and round mold wrapping type.

3PE anti-corrosion steel pipe coating (three-layer polyethylene anti-corrosion coating) is a new type of anti-corrosion produced by ingeniously combining the European 2PE anti-corrosion coating and the epoxy powder anti-corrosion steel pipe coating (FBE) widely used in North America. Steel pipe coating. It has been recognized and used all over the world for over ten years.

The coating of 3PE anti-corrosion steel pipe is that the bottom layer and the steel pipe surface are in contact with epoxy powder anti-corrosion coating, and the middle layer is a copolymerized adhesive with branched functional groups. The surface layer is high-density polyethylene anti-corrosion coating.

The three-pe anti-corrosion coating combines the high impermeability and high mechanical properties of epoxy resin and polyethylene materials. So far, it is the globally recognized pipeline anti-corrosion coating with the best use effect and the best performance, which is used in many projects.