1. What is Flat Tubing?
Flat tubing is an extruded thermoplastic hose engineered with an elliptical or flattened cross-section rather than a standard circular profile. Under pressure, it expands toward a rounder profile, but in a static state, its low profile allows it to run compactly along flat surfaces, inside tight cable carriers, or through narrow machinery channels.
2. Why Choose a Flat Structure?
Traditional round tubes waste valuable lateral space when bundled or routed through tight enclosures. Opting for a flat geometry provides distinct operational advantages:
- Space Optimization: The low-profile design stacks neatly, reducing the overall clearance needed for multi-line routing.
- Tangle Reduction: Parallel or multi-channel flat plastic tubing configurations prevent individual lines from crossing, twisting, or snagging during movement.
- Neeter Cable Management: Ideal for drag chains, robotic arms, and automated machinery where clean organization prevents mechanical wear.
Why Choose Flat Tubing?
1. Space-Saving Design
One of the main advantages of layflat tubing is its compact profile. It can be installed in narrow equipment spaces where conventional round tubing may require additional clearance.
This makes it useful for compact machinery, cooling systems, automation equipment and precision instruments.
2. Excellent Flexibility
Flexible PU tubing needs to withstand repeated bending and routing without becoming easily damaged. Polyether PUR Hose provides good elasticity and recovery, allowing the tube to bend around equipment and return toward its original shape after normal deformation.
3. Excellent Hydrolysis Resistance
For applications involving continuous water contact, material selection is particularly important.
Polyether PUR provides excellent resistance to hydrolysis compared with polyester PUR. It is suitable for long-term exposure to pure water, deionized water, cooling water and circulating water.
This makes polyether PUR flat plastic tubing particularly suitable for cooling and water-circulation systems.
4. Reliable Low-Temperature Performance
Polyether PUR can maintain good flexibility down to approximately -40°C. This characteristic makes it suitable for outdoor equipment, low-temperature machinery, cold-storage systems and cooling applications.
Compared with materials that become rigid at relatively low temperatures, polyether PUR can provide better flexibility in cold environments.
5. Visual Inspection
Semi-transparent or milky translucent tubing allows operators to observe the internal medium. Depending on the tube design, users can visually check for air bubbles, fluid movement or possible blockage.
This can be useful in water and cooling systems where monitoring fluid conditions is important.
Flat Tubing for Water and Cooling Applications
Water cooling is one of the most suitable application areas for polyether PUR Flat Tubing.
Typical compatible media include:
- Pure water
- Deionized water
- Cooling water
- Circulating soft water
- Selected water-based coolants
- Ethylene glycol antifreeze
- Selected low-concentration aqueous solutions
The excellent hydrolysis resistance of polyether PUR makes it suitable for applications where the tube remains in contact with water for extended periods.
Typical applications include photovoltaic equipment, battery cooling systems, water-cooling plates and compact industrial cooling circuits.
Flat Tubing for Air and Pneumatic Systems
In addition to water, appropriately specified flat tubing can be used for compressed dry air and inert gases such as nitrogen and argon.
For automation equipment and pneumatic systems, the flexible profile can help simplify routing through narrow machine spaces.
Depending on the pressure rating and tube dimensions, polyurethane materials can also be considered when customers are comparing polyurethane tube, pneumatic tubing and other flexible air-transfer solutions.
Where Is Flat Tubing Used?
Photovoltaic and New Energy Equipment
Modern photovoltaic and battery equipment often requires compact cooling circuits. Polyether PUR flat tubing can be used for water circulation, battery cooling and equipment cooling applications.
Its hydrolysis resistance is particularly valuable for systems that operate continuously with circulating water.
Semiconductor Equipment
Semiconductor and precision manufacturing equipment often has strict requirements for cleanliness, compact installation and stable fluid delivery.
Selected polyether PUR grades can be used for purified water, deionized water, cooling water and compressed dry air applications.
Automation Equipment
Automation systems contain numerous components installed within limited spaces. The flat profile can help route tubing through narrow areas and around mechanical components.
For selected pneumatic applications, flexible flat tubing can provide an alternative routing solution to conventional round pneumatic tubes.
Medical Equipment
Selected grades can be used for clean-water circulation, equipment cooling and fluid-routing applications in medical equipment.
For applications requiring food or medical contact compliance, the specific material grade and regulatory requirements should always be confirmed before selection.
Water Purification Equipment
Water purification systems require flexible tubing for clean-water transfer and equipment connections. Polyether PUR offers good hydrolysis resistance and flexibility for selected water-transfer applications.
Frequently Asked Questions
Is Flat Tubing suitable for water?
Yes. Polyether PUR flat tubing is suitable for pure water, deionized water, cooling water and circulating water.
Is Polyether PUR resistant to hydrolysis?
Yes. Polyether PUR has excellent hydrolysis resistance and is generally more suitable for long-term water exposure than polyester PUR.
Can Flat Tubing be used for compressed air?
Yes. Suitable specifications can be used for compressed dry air and selected pneumatic applications.
What temperature can Polyether PUR Flat Tubing withstand?
The typical continuous operating range is approximately -40°C to +70°C, with short-term intermittent temperatures up to approximately +80°C.
Is Polyether PUR resistant to oil?
No. Polyether PUR has limited resistance to mineral oil, lubricating oil, diesel and gasoline and is not recommended for long-term exposure to these media.
Can Flat Tubing be customized?
Yes. Dimensions, wall thickness, hardness, color, length and profile can be customized according to the application and production requirements.
Conclusion
Flat Tubing provides a space-saving and flexible solution for modern fluid and air-transfer systems. When excellent hydrolysis resistance and low-temperature flexibility are required, polyether PUR is particularly suitable for water, cooling and selected pneumatic applications.
From photovoltaic and new energy equipment to semiconductor systems, automation machinery and water purification equipment, the right flat tubing can simplify installation while providing reliable long-term performance.
