PU Spraying PE Winding Pre-Insulated Pipe Production Line

PU spraying PE winding pre-insulated pipe production line

PU spraying PE winding pre-insulated pipe production line is used for the production of polyurethane prefabricated direct buried thermal insulating pipes, which are widely used in the field of heating, cooling, and crude oil transportation.
The spraying and winding production process ensures the uniformity of the density of the insulation layer, improves product quality, and reduces production costs.

PUF spray PE winding preinsulated pipe production line consists of the following parts:

2) Polyurethane spray molding line
3) Polyethylene sheet extruding winding line
4) Water cooling line
5) End-cutting equipment

Product structure
Rigid polyurethane spraying polyethylene winding prefabricated direct buried insulation pipe is composed of working steel pipe for conveying medium, sprayed polyurethane rigid foam insulation layer and winding polyethylene outer casing. The product structure is shown in the figure below:




The scope of application of the insulation pipe
1. anti-corrosion, thermal insulation pipeline in the field of heating, cooling and crude oil transportation.
2. Medium temperature: ≤120°C (incidental peak value <140°C).
3. Medium pressure: ≤2.5MPa.
4. Laying method: It is mainly used for direct burial laying, and can also be used for trench or overhead laying of pipelines.

1. The density of polyurethane is uniform and controllable.

2. Polyurethane rigid foam has no empty spaces.
3. The surface of polyurethane foam is rough, the shear strength (friction) to the polyethylene outer casing is greater than 200Kpa.
4. The thickness of the polyurethane insulation layer and the thickness of the polyethylene outer casing can be adjusted according to the design.
5. The production has a high degree of automation.

Technical process

Qingdao Huashida Machinery Co., Ltd is one of the top manufacturers of plastic extrusion machines in China, specialized in dealing with Steel pipe in terms of anticorrosion and insulation technology, R&D of the coating technique, design and manufacture of the equipment for coating, products and materials, researching and development of plastic extrusion equipments, especially of Vacuum Calibrating method PE insulation jacket pipe extrusion line, and PE hollow wall spiral pipe production line, PE PP sheet extrusion line, and pipe joints and welding tools such as heat shrinkable sleeve, Electro fusion sleeve etc.

Up to now, We have successfully entered the oversea markets of Russia, Iran, UAE, India, Belarus, Kazakhstan and son on. Our pipeline production line is nearly 50sets at home and abroad.
HUASHIDA Factory located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have obtained more than 10patents and many industry certifications at home and abroad. HUASHIDA company has high qualified and experienced teams for reaching& designing, manufacturing and site operation.
We have reliable products of different models because of our powerful making capacity. We can satisfy our customer's special need because of our outstanding R&D and design capacity. We can offer our user with timely and convenient techniqual support because of our perfect after-sales service.

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