Torich International Limited--The Steel Tube Maker

Torich International Limited--The Steel Tube Maker

What is plastic coated coil tubing?

2025 07/21

Stainless steel PVC-coated coil is a pipe with a unique structure and performance, widely used in various fields. The following is an introduction from the aspects of structure composition, production process, performance characteristics, and application fields:

 

Structural composition

  • Stainless steel core: Usually, 304, 316, and other high-quality stainless steel materials are selected as the base of the coil. Stainless steel has good corrosion resistance, strength, and toughness, which can ensure that the coil is not easily deformed or broken during use, and has good tolerance to various chemical substances.
  • PVC coating layer: A layer of polyvinyl chloride (PVC) plastic is wrapped on the outside of the stainless steel coil. PVC material has a low cost and good processing performance. It has the characteristics of insulation, wear resistance, aging resistance, and certain chemical corrosion resistance. It can further protect the stainless steel core and give the coil some new characteristics.

 

Production process

  • First, the stainless steel strip or stainless steel pipe is rolled into a coil shape through specific molding equipment. The dimensional accuracy and roundness of the coil must be guaranteed during the process.
  • Then, a layer of PVC material is covered on the surface of the stainless steel coil by coating, extrusion, and other processes. By precisely controlling parameters such as temperature and pressure, PVC and stainless steel are closely combined.

 

Performance characteristics

  • Strong corrosion resistance: Stainless steel itself has a certain corrosion resistance. With the external PVC coating layer, it can effectively prevent the contact between external corrosive substances and stainless steel, making the coil suitable for industries with high corrosion resistance requirements, such as chemical, food, and medicine.
  • Good insulation: PVC is an insulating material, which makes the stainless steel PVC-coated coil have good insulation performance and can be used in occasions where electrical insulation is required to avoid the occurrence of conductive accidents.
  • Beautiful and durable appearance: The PVC coating layer can be made into different colors according to demand, making the coil more beautiful. At the same time, its wear-resistant and aging-resistant characteristics also extend the service life of the coil.
  • Good flexibility: The coil structure makes it have good flexibility, easy to bend and arrange, can adapt to complex installation environments, and reduces installation difficulty and cost.

 

Application fields

  • Electrical field: As a protective tube for electrical lines, it can protect wires and cables from external mechanical damage, corrosion, and electrical interference. It is often used for building electrical wiring, internal circuit protection of electrical equipment, etc.
  • Plumbing field: It can be used to transport hot water, cold water, etc. In some places with high water quality requirements, such as household drinking water systems and hot water heating systems, its corrosion resistance and hygiene can ensure that the water quality is not polluted.
  • Machinery manufacturing field: As oil pipes and air pipes inside the machinery, it protects the fluid medium in the pipe. At the same time, during the mechanical movement, the flexibility of the coil can reduce damage caused by vibration, bending, etc.
  • Decoration field: Due to its beautiful appearance, it can also be used for indoor and outdoor decoration, such as the production of furniture and handicrafts, playing a dual role of decoration and protection.

 

Conclusion

In short, stainless steel plastic-coated pipes are used in many fields due to their excellent corrosion resistance, high temperature resistance (such as ASTM A269 316 Steam Tracing Piping For Industry), and convenient transportation.
 
304 316 316L 317 347 Steam Tracing Piping (1)