Product Description
Huashida took 2 years to overcome about 30 technical difficulties, and developed a new one-step polyurethane foam flexible pre-insulated pipe production line with independent intellectual property rights.
The new one-step polyurethane foam pre-insulated pipe production'line includes the following processes:
The pressure-bearing and heat-resistant PERT inner working pipe extrusion, polyurethane foaming, polyurethane curing and corrugation forming,HDPE jacket coating. The whole process is online continuous production.
This production line is suitable for making both flexible polyurethane foam pre-insulated pipes and rigid polyurethane foam pre-insulated pipes, and the pipe diameter range is from 20mm to 350mm.
Product Parameters
Compare between PE-RTII insulation pipe and Ordinary insulation pipe | Picture | Weight/m | Cost of project | Pipe Length |
|
Light |
Low |
unlimited |
 |
Weight |
High |
Fixed-lenghth |
PE-RTII Heating Pipe Structure
- PERT Work pipe; 2- Protective pipe; 3-Insulated pipe; 4-Stander;
- d1- Protective pipe outer diameter; e1- Protective pipe wall thickness; e2- Insulation Layer thickness; dn-Work pipe Nominal diameter ;en- Nominal thickness of the work tube
Production Line Details
Process Flow Up carrier pipe--pulling up to line--pipe catching connect--transport forward---put into seal &cover film device--foaming--foam curing ---PE cover extruding--vacuum sorb -- spray cooling--checking splice--cutting splice--off-pipe--down off pipe Equipment components-- Plastic pipe upload table
-- Plastic pipe pulling device
-- Transfer Straight V wheel
-- Crawler-type push machine
-- Far infrared heating device
-- Pipe centering correction system
-- Foaming machine system
-- Over molding system
-- Automatic feeding machine
-- Winding machine
-- Hopper dryer
-- Extruder
-- Spray cooling water tank
-- Cutting Machine
-- Stacking table
-- Control SystemMore details
Extruder: PERT special single screw extruder, extrusion part using forced water cooling feeding section, machine barrel slotted, the power consumption of the main drive motor is greatly reduced; Screws with a large length-to-diameter ratio (25-38:1) have excellent plasticizing effects.
Extruder head: professional PERT pipe mold, smooth inner and outer surface of the pipe, uniform wall thickness, special treatment of the flow channel, more wear-resistant, PERT pipe dedicated efficient head.
Vacuum calibration box: Uniquely designed sizing sleeve, all-stainless steel vacuum box, using PERT pipe dedicated sizing sleeve, accurate sizing and good effect; High-efficiency spray cooling ensures the quality of the pipe materials.
Coating die head: With a vacuum coating mold of invention patent and a specially designed coating die head, it ensures uniform thickness of the coating layer.
Winding machine: A fiber-reinforced device with an invention patent, featuring efficient fiber weaving to ensure the strength of the pipe.
Chipless cutting machine: Wide range cutting from 32 to 200mm; High-strength alloy steel blades, rotary knife cutting, smooth and flat pipe cutting edge with small error; The cutting follow-up ensures the precise cutting position; Professional PLC control, accurate operation; The feed position is specially designed to ensure that the cutting is completed in one go.
Application Scenarios
Huashida's continuous PERT insulated pipe pipes are ideal for a wide range of applications, including district heating, cooling systems, oil and gas pipelines, and industrial piping. Their superior insulation, anti-corrosion properties, and long service life make them the preferred choice for modern, sustainable piping systems.
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