Weprofab PI Pipe Features
Resistant to extremely high and low temperatures
Stretch-resistant, can be bent at will
Non-toxic and harmless
Corrosion-resistant, resistant to nuclear radiation
Excellent insulation properties
Low dielectric loss
Your Leading PI Pipe Manufacturer
Weprofab’s PI pipe can withstand temperatures as low as -269°C and as high as +250°C, with a tensile strength of 20,000-33,500 PSI, and is resistant to strong acids, alkalis, and organic solvents.
Our PI pipe has a variety of different models and is highly accurate. The inner diameter ranges from 0.004 inches to 0.086 inches, the wall thickness ranges from 0.0005 inches to 0.008 inches, and the tolerance does not exceed ±0.00025 inches.
To meet the needs of different customers, we can also help you cut different lengths of PI pipe according to your needs.
Various Types of PI Pipe
N-PIC PI PipeWear-resistant and extrusion-resistant PI capillary hose, specially used in hospitals and laboratory equipment.
SB-PFT PI PipePI Pipe has an ultra-thin wall and is made of reliable plastic. The motor protection tube can be customized.
IDL-PI PI PipeHigh temperature resistant and corrosion resistant PI pipe, cutting service is provided
KY-PI PI PipePI Pipe for temperature sensors, heating elements, and thermistors. Forming and cutting services are available.
PI Pipe for Various Applications
Medical FieldPI pipe is widely used in the medical field because of its good flexibility, corrosion resistance, and biocompatibility.
AerospacePI pipe is often used as an insulating cable for spacecraft because of its high temperature resistance and high dielectric strength.
Chemical FieldPI pipe is often used to transport corrosive liquids because of its resistance to strong acids, strong alkali, and organic solvents.
Office EquipmentPI pipe is often used as a high-temperature drive component for copiers and printers because of its long-term high-temperature resistance and resistance to deformation.
Industrial FieldPI pipe is often used to transport hydraulic oil because of its strong compressive strength and oil resistance.
Electronic FieldPI pipe is often used as a high-frequency insulating cable because of its low dielectric loss and good electromagnetic shielding.
Nuclear Energy FieldPI pipe is often used as a reactor cooling pipe because of its resistance to high and low temperatures and nuclear radiation.
Weprofab Medical PI Pipe
The PI tubes produced by Weprofab meet medical grade standards. We produce a variety of medical PI pipes, such as cardiovascular catheters, urology drainage tubes, neurovascular catheters, heat dissipation catheters, high-pressure liquid delivery tubes, etc.
Micro-cutting Service
Weprofab can provide customers with precise cutting services. Our cutting accuracy can reach 0.005 inches, the length tolerance can reach ±0.0025 inches. We can ensure that the contour will not be deformed or burred after cutting.
I am the owner of a private hospital. Because of the need for surgery, I consulted many friends. They recommended Weprofab to me. At that time, I didn’t know which material of the catheter was the most suitable. After communicating with their customer service staff, they recommended PI catheters to me. After I bought it, I felt that the effect was very good, without any damage. Moreover, their customer service staff responded to messages very quickly and professionally, and could clearly understand my needs. In short, both their PI pipe and their service are very good.
Weprofab PI Pipe complies with ISO 13485, ISO 9001, UL 510, ASTM C518, FDA 21 CFR, RoHS standards.
he price of PI pipe is related to its application. The price of conventional industrial-grade PI pipe is about $10-50/meter, the price of medical-grade high-precision PI pipe is about $500-2,000/meter, the price of PI pipe for electronics and aerospace is about $200-800/meter, and the price of PI pipe for nuclear industry and high-temperature applications is about $1,000-3,000/meter.
If you want to buy PI pipe, you need to provide the size, application, packaging method, delivery time, and whether a quality inspection report is required.
PPS Pipe
PE Pipe
PC Pipe
PA Pipe
How to Produce PI Pipe?
The production process of PI pipe is mainly divided into the following steps.
Step 1: You should use aromatic dianhydride and diamine to synthesize polyamic acid. Then add substances that can improve material performance according to need, for example: adding boron nitride can improve thermal conductivity, and adding carbon fiber can improve mechanical strength.
Step 2: You should surface treat the stainless steel or titanium mandrel, using chemical treatment or plasma etching to increase the surface roughness and improve the adhesion of the polyamic acid solution.
Step 3: You should apply the polyamic acid solution to the rotating mandrel surface and let it dry. The single layer thickness needs to be controlled between 0.0005-0.001 inches. Then repeat the application and drying steps until the target wall thickness is reached. Of course, you can also add PTFE or silicone-based lubricants between layers as a lubrication layer, or embed a conductive primer containing silver particles as a conductive layer.
Step 4: You should perform high temperature curing on it. In this step, you should gradually raise the temperature to 300-400°C in an inert gas to dehydrate and cyclize the polyamic acid solution to form a polyimide structure. The curing time for each layer should be controlled within 10-30 minutes. This ensures that the polyamic acid solution completely forms a polyimide structure and all solvents have been removed.
Step 5: You should use nitric acid solution to dissolve or mechanical demoulding to separate the mandrel from the tube body. After the tube body is separated from the mandrel, it needs to be heat-set at 200-250°C. This ensures that the inner and outer diameter tolerances meet the standards.
Step 6: You can laser cut it to the required length and spray it with silicone-based lubricant or fluorinated polymer to improve the smoothness of the inner wall of the tube.
