In this ultimate guide, we explore the definitive history, core materials, and high-performance applications of modern industrial plastic tubing.
A Brief History of Industrial Plastic Tubings
Before the invention of synthetic polymers, industrial systems relied heavily on natural rubber and metal pipes, both of which suffered from severe corrosion, high weight, and limited flexibility.
The timeline of modern plastic tubing innovation shifted rapidly across the 20th century:
1930s – The PVC Era: Polyvinyl Chloride (PVC) emerged as the first major plastic polymer to replace corroded metal lines, finding immediate use in liquid distribution and electrical sheathing.
1950s – The Polyethylene Boom: The commercialization of high-density polyethylene (HDPE) allowed manufacturers to extrude highly flexible, lightweight, and low-cost fluid transfer lines.
Modern Day – High-Tech Fluoropolymers: Advanced materials like PTFE and custom thermoplastic elastomers (TPE) now dominate extreme-temperature and highly corrosive chemical applications.
5 Critical Types of Plastic Tubing Materials
Choosing the right plastic tubing requires matching the chemical properties of the fluid or gas being conveyed to the specific polymer resin. Below are the five most widely utilized materials in the market today:
1. PVC Tubing (Vinyl)
Key Properties: Excellent transparency, high flexibility, smooth interior to maximize flow, and cost-efficient.
Best Used For: Potable water lines, food and beverage processing, and protective insulation sleeves.
2. Polyethylene (PE) Tubing
Key Properties: Outstanding chemical inertness, minimal moisture absorption, and crack resistance.
Best Used For: Low-pressure laboratory liquid transfer, chemical processing lines, and agricultural drip irrigation.
3. Polyurethane (PU) Tubing
Key Properties: Superior kink resistance, excellent elastic memory, and extreme resistance to petroleum-based chemicals.
Best Used For: Fuel and oil lines, pneumatic control systems, and high-vibration robotics.
4. Nylon Tubing
Key Properties: High impact strength, superb dimensional stability, and resistance to high-pressure environments, solvents, and hydraulic fluids.
Best Used For: Air tool lines, hydraulic systems, and automated machinery pneumatic lines.
5. Fluoropolymer Tubing (PTFE / Teflon®)
Key Properties: Capable of handling extreme temperature ranges (from $-200^{\circ}\text{F}$ to $500^{\circ}\text{F}$) and virtually inert to all acids and solvents.
Best Used For: Highly corrosive chemical delivery, high-heat industrial systems, and sticky or viscous fluid handling.
Major Industrial Applications of Plastic Tubing
Because plastic tubings can be engineered with custom wall thicknesses, reinforcement layers, and opacity levels, they are critical across several core sectors:
Pneumatic Systems & Automation
Flexible polyurethane and nylon plastic tubing are standard in factory automation. They transport compressed air safely between control valves, actuators, and pneumatic tools, handling consistent pressures up to 115 PSI.
Healthcare & Pharmaceuticals
Medical-grade plastic tubings (such as platinum-cured silicone or specialized EVA) are rigorously manufactured to prevent contamination. Their transparent nature allows doctors and technicians to visually monitor fluids in IV systems, catheters, and peristaltic pumps.
Food, Beverage, & Dairy Processing
FDA-compliant, food-grade plastic tubing ensures that liquids pass through processing lines without absorbing tastes, odors, or hazardous chemical leachates.
Selection Criteria: Choosing Your Industrial Plastic Tubing
When specifying plastic tubing for a commercial project, keep these core variables in mind:
| Factor | Critical Consideration |
| Pressure Rating | Ensure the tube can safely handle the working PSI. Reinforced (braided) tubing is best for high-pressure lines. |
| Clarity | Clear tubing allows for visual flow monitoring, while solid/opaque tubing protects light-sensitive chemicals. |
| Flexibility vs. Rigidity | High-flexibility PU is ideal for robotic limbs, while rigid HDPE is better for underground protective conduits. |
Frequently Asked Questions (FAQs)
What is the difference between a plastic pipe and plastic tubing?
Pipes are generally rigid structures used for high-pressure, long-term infrastructure and are measured by their Inner Diameter (ID). Plastic tubing is typically flexible, can be coiled, and is specified by its Outer Diameter (OD) and wall thickness to match precise fittings.
Is clear PVC plastic tubing safe for drinking water?
Yes, provided it is explicitly labeled as “FDA-compliant” or “NSF-61 certified” food-grade material, ensuring it is engineered without harmful plasticizers.
Can plastic tubing handle fuel and chemicals?
Yes, but material choice is vital. Polyurethane offers incredible resistance to petroleum and oils, while fluoropolymers like PTFE are required for aggressive acids and chemical solvents.
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