Hangzhou Evershine Pneumatic Import & Export Co., Ltd. is one of the leading manufacturers and suppliers of polyurethane pneumatic tubing in China. With abundant experience, we are committed to providing high quality pneumatic components to global clients. Welcome to wholesale custom made polyurethane pneumatic tubing from our factory. Also, OEM service is available.
We've been supplying PU tubing for years, and it's become the go-to choice for customers who need flexibility above all else. Unlike nylon or polyethylene, polyurethane stays soft and pliable even in cooler temperatures – which means fewer kinks, fewer interruptions, and fewer maintenance calls. One customer in the robotics industry told us he switched to PU tubing after fighting with stiff nylon lines for years. He hasn't looked back since.
Whether you're running air to a moving tool, routing lines through tight machine spaces, or just tired of replacing cracked hose every few months, polyurethane pneumatic tubing is worth a closer look.
Product Introduction
PC Series – Straight male connector, for direct tube-to-thread connections
PL Series – Elbow male connector, for 90° tube routing
PU Series – Straight union, for tube-to-tube connections
PY Series – Y-shaped connector, for splitting flow into two directions
PE Series – T-shaped connector, for branching flow
Product Introduction
Polyurethane Pneumatic Tubing – Flexible PU Air Hose for Industrial Compressed Air Systems is designed to solve a very real problem that we see all the time in workshops and factories – hoses that stiffen, kink, or crack under normal working conditions.
The WAALPC polyurethane pneumatic tubing range tackles that head-on. It provides the flexibility and durability that pneumatic systems actually need – not just on paper, but in daily operation. PU tubing stays flexible across a wide temperature range, resists abrasion and weathering, and handles repeated flexing far better than many alternative materials.
This tubing is suitable for air, water, oil, and normal solvents. It's available in metric and inch sizes, with outside diameters ranging from 4mm up to 16mm. Standard colours include blue, black, transparent, and red – with custom colours available on request.
Whether you're building a new machine, replacing a failed hose, or upgrading a system that's been giving you trouble, this polyurethane pneumatic tubing does one thing well: it delivers air reliably, day after day. That's the whole point.
【Feature】– What you actually get
The PU series covers the sizes and configurations that handle most industrial pneumatic applications:
Metric sizes – I.D. from 2.5mm to 13.0mm, O.D. from 4.0mm to 16.0mm. Bending radii as tight as 10.0mm for the smallest sizes.
Inch sizes – I.D. from 2.0mm to 9.6mm, O.D. from 3.2mm to 12.0mm. Bending radii from 13.0mm up to 50.0mm.
Length options – 100m and 200m reels as standard. Custom lengths available.
Colours – Blue, black, transparent, red. Other colours available on request.
Temperature range – -20°C to +60°C. Suitable for most indoor industrial environments.
All tubing is compatible with push-in fittings, compression fittings, and standard barbed fittings. No special tools required for installation.
【Advantage】– Why this tubing earns its place
The first thing people notice is the flexibility. PU tubing bends without kinking, even in tight routing situations where nylon or PE would fold over. That flexibility translates directly into fewer interruptions – no stopping production to straighten out a kinked line.
The second thing is durability. Polyurethane resists abrasion, weathering, and the repeated flexing that kills cheaper tubing. It's designed for real workshop conditions – not just clean laboratory setups. The ester-based formulation provides excellent restoring force, so the tubing returns to its original shape after being bent or compressed.
And then there's the range. With metric and inch sizes, multiple colours, and bending radii as tight as 10mm, you can standardise on one tubing family for almost every pneumatic application in your facility.
【Benefit】– What it means on the shop floor
Let's keep this practical.
Fewer kinks, fewer stoppages. PU tubing stays flexible where other materials stiffen. That means less time untangling lines and more time producing.
Longer service life. Polyurethane resists the abrasion and fatigue that cause premature hose failure. A tubing that lasts three years instead of one pays for itself many times over.
Easier installation. Flexible tubing routes easily around obstacles, bends without kinking, and stays put once installed. That speeds up machine assembly and makes maintenance less frustrating.
Simpler inventory. One tubing family, multiple sizes and colours. You don't need to juggle different product lines or wonder whether the tubing on your shelf is the right one for the job.
【Evidence】– The numbers behind the tubing
We test this tubing the same way we test everything else – under conditions that mimic real use, not laboratory ideals.
The PU series handles temperatures from -20°C to +60°C. Hardness ratings are 95A for standard PU, with 64D and 60D options available for specific applications. The ester-based formulation provides excellent flexibility and restoring force – important for applications where the tubing is constantly moving.
Bending radii range from 10.0mm for the smallest sizes up to 80.0mm for the largest. That's tight enough for most machine routing requirements, even in compact equipment.
These tubing products are installed in thousands of pneumatic systems worldwide – on packaging lines, assembly stations, robotics cells, textile equipment, and more. They've been proven in the field for years.
Technical Data Table
Video
| Parameter | Metric Sizes | Inch Sizes |
|---|---|---|
| Material | Polyurethane (PU) | Polyurethane (PU) |
| Working Fluid | Air, water, oil, normal solvents | Air, water, oil, normal solvents |
| Temperature Range | -20°C ~ +60°C | -20°C ~ +60°C |
| Hardness | 95A (standard) / 64D / 60D | 95A (standard) |
| I.D. Range | 2.5mm ~ 13.0mm | 2.0mm ~ 9.6mm |
| O.D. Range | 4.0mm ~ 16.0mm | 3.2mm ~ 12.0mm |
| Bending Radius | 10.0mm ~ 80.0mm | 13.0mm ~ 50.0mm |
| Length Options | 100m / 200m reels | 100m / 200m reels |
| Standard Colours | Blue, black, transparent, red | Blue, black, transparent, red |
| Compatible Fittings | Push-in, compression, barbed | Push-in, compression, barbed |
FAQ
1. What is polyurethane pneumatic tubing used for?
It's used to transport compressed air, water, oil, and normal solvents in pneumatic systems. It's especially well-suited for applications where flexibility and kink resistance are important – like moving tools, robotics, and tight machine routing.
2. What's the difference between PU, PA, and PE tubing?
PU (polyurethane) offers the best flexibility and kink resistance. PA (nylon) offers better pressure and temperature resistance. PE (polyethylene) is the budget-friendly option for general air lines.
3. What sizes are available?
Metric sizes from 2.5mm to 13.0mm I.D., and inch sizes from 2.0mm to 9.6mm I.D. O.D. ranges from 3.2mm to 16.0mm depending on the size.
4. What colours can I get?
Standard colours include blue, black, transparent, and red. Custom colours available on request.
5. What's the temperature range?
-20°C to +60°C for all series.
6. Is this tubing compatible with push-in fittings?
Yes. It works with push-in fittings, compression fittings, and standard barbed fittings. No special tools required.
Installation & Maintenance Tips – A few things we've learned from the field
We've been around enough workshops to know that small details make a big difference. Here are a few things worth keeping in mind:
Cut the tube squarely. A clean, perpendicular cut is the difference between a leak-free connection and a slow leak. Use a proper tube cutter – not a pair of side cutters.
Don't over-bend. Every tubing has a minimum bend radius. Going tighter than that causes kinks and premature failure. Check the specification for your specific size.
Keep it away from heat sources. Even though PU tubing handles up to 60°C, prolonged exposure to hot surfaces will shorten its life. Route it away from exhaust manifolds, heaters, and hot pipes.
Use the right fittings. Push-in fittings work best with PU tubing. Make sure the fitting and tubing are compatible before assembly.
Replace damaged tubing promptly. A small crack or abrasion point will grow under pressure. Replace the tubing before it fails completely – it's cheaper than the downtime.
That's about it. A few simple habits and this polyurethane pneumatic tubing will keep performing for years.
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