What is a PFA tube and what is it used for? How many arcs can PFA tubes bend?

2023-09-15


What is PFA tube?

PFA pipe is a kind of high-performance plastic pipe made of perfluoroalkoxy resin, its chemical name is polyperfluoroalkoxy resin, which is a fluorine plastic that can be fused and processed. Triflure PFA tubes offer similar but better heat resistance, mechanical strength and processability than PTFE tubes, and are particularly suitable for use in demanding environments such as the transport of corrosive chemicals, high temperature insulation and applications requiring high purity and cleanliness.


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What is the use of PFA?

Sanfulai PFA tubes are widely used in many fields because of their excellent chemical resistance, high temperature resistance and low permeability. It is mainly used in the production of corrosion-resistant pipe systems, internal pipelines of semiconductor manufacturing equipment, chemical equipment seals, heat exchanger components, wire and cable insulation, medical device components, and clean fluid transmission pipelines in the food and pharmaceutical industries.


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How many arcs can PFA tube bend?

The bending radius of a PFA tube depends on the diameter of the tube, the wall thickness, and the flexibility of the material itself. In theory, the PFA tube can be cold bent into a relatively large arc, and in practical applications, it is necessary to ensure that the bending radius is not less than a certain multiple of the pipe diameter to avoid damaging the material structure or affecting its performance. The specific bending Angle and radius should be realized by referring to the technical data provided by the manufacturer or through professional processes. In general, the minimum bending radius of triflure PFA pipe is about 3 times the diameter of the pipe. For example, a PFA tube with a diameter of 20 mm should have a minimum bending radius of 60 mm.


Under what circumstances does the PFA tube need to bend?

Sanfulai PFA tubes usually need to be bent in the following situations:

  1. When the pipeline layout is complex and needs to be adapted to space restrictions, for example, a pipeline route is arranged inside the device to bypass obstacles.

  2. Connect equipment or system components in different locations where corner transitions are required, such as connecting pumps, valves or other containers.

  3. In order to reduce stress concentration and facilitate installation and fixing, it is sometimes designed to have a certain curvature shape to improve the overall structural stability.

  4. In specific experimental devices or special processes, the liquid flow path is required to have a specific Angle or direction adjustment.

  5. To meet the customized needs of customers, directional bending of PFA tubes is carried out according to the actual application scenario to achieve the best use effect and performance.


  • Sanfulai, high-end fluorine plastic products manufacturer. Supplier of high purity PFA tubes for semiconductor factories

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