Considering the best type of pneumatic tubing for your application?

Pneumatic tube plays a crucial role in transmitting compressed air to various pneumatic components in machinery, tools, and automation systems. Choosing the right type of tubing is essential for ensuring efficient operation and avoiding leaks or malfunctions. Here is a breakdown of the most common types of pneumatic tube:
 
Polyurethane
(PU) Tubing: 
Polyethylene
(PE) Tubing: 
Nylon Tubing:
Polyvinyl Chloride
(PVC) Tubing:
 
Fluoropolymer
Tubing: 
Polyurethane (PU) tubing is a versatile and widely used material for pneumatic applications. It offers a range of advantages that make it suitable for various situations. In brief:
  • The most versatile and widely used type of pneumatic tubing.
  • Offers excellent flexibility, abrasion resistance, and chemical compatibility.
  • Available in various wall thicknesses and diameters to suit different requirements.
Polyethylene (PE) tubing is also popular for pneumatic applications, offering its own set of advantages and disadvantages compared to polyurethane tubing. In brief:
  • A cost-effective option with good rigidity and resistance to cracking.
  • Not as flexible as PU tubing but suitable for low-pressure applications.
  • Often used in the food and beverage industries due to its inert nature.
Nylon tubing offers unique advantages in the world of pneumatics, making it a strong contender for specific applications. In brief:
 
  • Offers high strength, temperature resistance, and pressure rating.
  • Can withstand harsh environments and chemicals.
  • Less flexible than PU or PE tubing but ideal for demanding applications.
Polyvinyl chloride (PVC) tubing, while not the most glamorous option, offers its own set of advantages and can be a suitable choice for specific applications. In brief:
  • A budget-friendly option with good flexibility and chemical resistance.
  • Not as durable as other materials and can degrade over time.
  • Suitable for low-pressure applications where cost is a primary concern.
Fluoropolymer tubing stands out by offering exceptional performance in demanding environments and applications where other materials fall short. In brief:
  • Exceptional chemical resistance, high-temp tolerance, and low friction.
  • Commonly used in high-purity apps, such as pharmacy / medical industries.
  • More expensive than other tube, but ideal for critical applications.
We offer polyurethane tube in 25m, 30m, and 100m rolls in a range of colours.  Key characteristics of polyurethane tube: We stock Polythylene (Polythene) tube in 30m roles in both Metric and Imperial sizes.  Key characteristics: We sell Nylon12, and it is a fast mover on our site.  Metric and Imperial, a range of colours, and quick buy.  Key characteristics: We sell PVC (braided hose) in a range of sizes and colour options, as well as in transparent.  Key characteristics: Our Fluoropolymer (PTFE) tube comes in 5m, 10m, and 50m lengths.  Key characteristics:
Pros:
  • Highly flexible: Bends easily and conforms to irregular shapes without kinking, ideal for complex tube layouts.
  • Durable: Resists abrasion and wear & tear, thus long-lasting in demanding environments.
  • Resistant to oils and chemicals: Suitable to convey compressed air alongside lubricants or handling chemical exposure.
  • Good temperature range: Performs well within a broad temperature range, typically -40°C to 100°.
  • Lightweight: Easier to handle and install compared to heavier materials like metal.
  • Various options: Colours, diameters & wall thickness.
  • Reusability: Can be reused with proper cleaning & inspection
Pros:
  • Cost-effective: Generally cheaper than polyurethane and other tubing options.
  • Lightweight: Easy to handle and install due to its low weight.
  • Good flexibility: Offers decent flexibility for moderate bending requirements.
  • Chemical resistance: Resists some chemicals and oils, suitable for basic pneumatic applications.
  • Temperature range: Performs well within a moderate temperature range, typically -40°C to 80°C (-40°F to 176°F).
  • Food-grade options: Available in food-grade versions for safe use in food and beverage applications
Pros:
  • High strength and abrasion resistance: Superior to both PU and PE tubing, ideal in harsh conditions with wear and tear.
  • Excellent pressure rating: Can handle significantly higher pressures than PU and PE, making it suitable for demanding applications.
  • Good temperature range: Performs well within a broad temperature range, typically -40°C to 120°C.
  • Chemical resistance: Resists a wider range of chemicals and oils compared to PU/PE.
  • Low friction:  Ensures smooth airflow & minimizes pressure loss in long runs.
Pros:
  • Cost-effective:  The most affordable option among tubing materials like PU, nylon, and PE.
  • Lightweight and easy to handle: Makes installation and handling simpler due to its low weight.
  • Good chemical resistance: Can withstand some chemicals and oils, suitable for basic pneumatic setups.
  • Transparent options: Allows visual inspection of airflow and potential blockages.
  • Readily available: Widely available in various sizes and wall thicknesses.
Pros:
  • Superior chemical resistance: Withstands aggressive chemicals, ideal for harsh processing & industrial settings.
  • Exceptional temperature range: Handles extreme temps, typically -60°C to 260°C, far exceeds most tube materials.
  • High pressure rating: Handles significantly high pressures, suitable for demanding pneumatic systems and applications.
  • Low friction: Ensures smooth airflow & minimal pressure loss, ideal for long tube runs.
  • Excellent durability:Resists abrasion and degradation offering extended lifespan in challenging environs.
  • Flame retardant: An extra fire risk safety layer.
Cons:
  • Not as strong as some materials: May not be suitable for extremely high-pressure applications.
  • Less UV resistant: Can degrade over time if exposed to direct sunlight for extended periods.
  • Not ideal for extreme temperatures: Not recommended for applications exceeding its designated temperature range.
  • Cost: Can be more expensive than some other tubing options like PVC.
Cons:
  • Lower pressure rating: Generally not recommended for high-pressure applications, due to its weaker structure than other materials.
  • Less durable: More susceptible to punctures and abrasion.
  • Less temperature resistant: Not suitable for extreme temp environs exceeding its range.
  • Not as flexible: Bends less easily than polyurethane, limiting complex setup use.
  • Permeability: Can allow some gases to permeate through the tubing walls in certain applications. 
Cons:
  • Less flexible: Not as bendable as PU, limiting its use in tight spaces or requiring more precise fitting.
  • Higher cost: Can be more expensive than PU and PE, especially for thicker wall thicknesses.
  • Stiffer material: Requires more force to bend and connect to fittings, potentially requiring dedicated tools.
  • Susceptible to UV degradation: Can deteriorate over time if exposed to direct sunlight.
Cons:
  • Low pressure rating: Not suitable for high-pressure applications due to its weaker structure.
  • Less flexible: Bends less easily than PU, limiting its use in complex setups.
  • Not as durable: More susceptible to punctures and kinking compared to other materials.
  • Lower temperature range: Performs well within a limited range, typically -10°C to 60°C.
  • Can leach plasticizers: May contaminate fluids or air in sensitive applications.
Cons:
  • High cost: Significantly more expensive than other tubing (PU, PE, PVC), requiring careful cost-benefit analysis for your specific situation.
  • Less flexible: Not as bendable as PU, limiting its use in tight spaces or requiring more precise fitting.
  • Stiffer material: Requires more force to bend and connect to fittings, so may require demanding dedicated tools.
  • Difficult to handle: May require special handling techniques due to its chemical resistance.
Applications: Polyurethane
tubing is used in a wide variety of pneumatic applications, including:
 
  • Air tools: Pneumatic drills, wrenches, sanders, and other tools.
  • Pneumatic cylinders: Actuating valves, dampers, and other machinery components.
  • Robotic systems: Conveying air for pneumatic actuators and grippers.
  • Food and beverage industry: Transferring air in food processing equipment.
  • Medical equipment: Delivering air for nebulizers, ventilators, and other medical devices.
  • General air lines: Conveying compressed air in workshops, factories, and other industrial settings.
Applications: Polythylene
tubing is suitable for low-pressure and moderate-duty pneumatic applications, including:
  • Instrumentation: Conveying air for gauges, sensors, and other measuring equipment.
  • Vacuum systems: Transferring air in low-pressure vacuum applications.
  • General air lines: Carrying air for low-pressure tasks in workshops or facilities.
  • Temporary lines: Suitable for temporary setups where cost and ease of installation are priorities.
Applications: Nylon tubing
shines where high strength, pressure resistance, and chemical compatibility are crucial, such as:
  • Hydraulic systems: Conveying fluids in hydraulic actuators and machinery.
  • Pneumatic tools: Handling high-pressure air in tools like impact wrenches and sanders.
  • Automotive industry: Transferring fuel, lubricants, and air lines in vehicles.
  • Chemical processing: Conveying chemicals and fluids in production lines.
  • High-pressure instrumentation: Connecting gauges, sensors, and other pressure-sensitive equipment.
Applications: PVC tubing
can be useful in specific low-pressure situations, such as:
 
  • Temporary air lines: Suitable for short-term setups where cost and ease of installation are priorities.
  • Low-pressure instrumentation: Conveying air for gauges, sensors, and other measuring equipment in non-critical systems.
  • Cable protection: Shielding electrical cables and wires in non-demanding environments.
  • General air lines: Carrying air for low-pressure tasks in workshops or facilities where cost is a prime concern.
Applications: Fluoropolymer tubing shines where its unique properties are crucial, such as:
  • Chemical processing: Conveying highly corrosive and aggressive chemicals in production lines.
  • High-temperature environments: Transferring fluids and gases in extreme heat or cold situations.
  • Semiconductor and electronics industry: Handling ultrapure fluids and gases in sensitive manufacturing processes.
  • Aerospace and automotive industries: Conveying fuels, lubricants, and air in demanding operating conditions.
  • Medical equipment: Transferring sterile fluids and gases in sensitive medical devices.
 
Additional Factors to Consider:
 
  • Pressure rating: Ensure the tubing is rated for the maximum pressure in your application.
  • Temperature range: Choose tubing suitable for the expected operating temperature range.
  • Chemical compatibility: Verify the tubing can withstand any chemicals it might be exposed to.
  • Size and wall thickness: Select the appropriate diameter and wall thickness based on flow requirements and pressure rating.
  • Colour: Colour coding can be helpful for identifying different air lines.
  • Transparency requirement: Choose transparent tubing if visual inspection is important.
  • Fittings: Choose compatible fittings for secure connections.
  • Food-grade requirements: Choose food-grade tubing for applications involving food or beverages.
  • Application requirements: Consider factors like flexibility and UV exposure based on your specific use case.
  • Budget: Weigh the cost of nylon against other tubing options based on your project needs
  • Budget: Carefully assess the cost against the benefits and explore alternative options for less demanding applications.
  • Specific chemical compatibility: Determine the exact chemicals the tubing will be exposed to and choose compatible material variants.
 
By considering these factors and the types of pneumatic tubing available, you can select the optimal option for your specific application and ensure efficient, reliable performance of your pneumatic system.  Contact Shelley Automation on 01484 860920 for information and advice specific to your application needs.