AirTAC PU One-Touch Straight Union, Ø4-12 mm Tube
Every stocked AirTAC PU on one page: 10 order codes, from $6.86. Pick the tube size and color to see the exact order code and price.
Straight Union
This combination is not a stock order code. Request a quote and we will confirm availability and price.
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC PU
The AirTAC PU is a straight union joining two tubes of the same size. Push the tube in to connect; press the release button and pull to disconnect. It works from vacuum (-750 mmHg) up to 1.0 MPa at -20 to +70 °C with soft nylon or polyurethane tube.
Available for Ø4, Ø6, Ø8, Ø10, Ø12 mm, in gray or black (D).
PU Technical Specifications
| Model | PU |
|---|---|
| Type | Straight Union |
| Operating pressure | 0 – 1.0 MPa (0 – 10 kgf/cm²) |
| Vacuum | -750 mmHg (10 Torr) |
| Proof pressure | 1.5 MPa |
| Ambient and fluid temperature | -20 to +70 °C |
| Tubing | Soft nylon or polyurethane |
|---|---|
| Color | Gray or black (D) |
Source: AirTAC catalog P264-P267 (PU ordering code, specifications and dimensions).
How the PU Order Code Is Built
| PU | One-touch straight union |
|---|---|
| 4 / 6 / 8 / 10 / 12 | Tube O.D. (mm) |
| blank / D | Color: blank = gray; D = black |
All AirTAC PU Order Codes (10)
Each order code links to its own datasheet page. Use Select to load it into the configurator above.
| Order code | Tube O.D. | Color | Type | Price | Select |
|---|---|---|---|---|---|
| PU4 | Ø4 mm | Gray | Straight Union | $6.86 | |
| PU4D | Ø4 mm | Black (D) | Straight Union | $6.86 | |
| PU6 | Ø6 mm | Gray | Straight Union | $6.91 | |
| PU6D | Ø6 mm | Black (D) | Straight Union | $6.91 | |
| PU8 | Ø8 mm | Gray | Straight Union | $7.11 | |
| PU8D | Ø8 mm | Black (D) | Straight Union | $7.11 | |
| PU10 | Ø10 mm | Gray | Straight Union | $7.36 | |
| PU10D | Ø10 mm | Black (D) | Straight Union | $7.36 | |
| PU12 | Ø12 mm | Gray | Straight Union | $7.62 | |
| PU12D | Ø12 mm | Black (D) | Straight Union | $7.62 |
Need a combination that is not listed? Request a quote.
Where the PU Is Used
Air lines
Connects nylon and polyurethane air tube to valves, cylinders and manifolds.
Quick changes
Tube goes in by hand and comes out with the release button, no tools.
Vacuum circuits
Rated down to -750 mmHg as well as up to 1.0 MPa.
Choosing the Right PU Configuration
Choose the tube size: Ø4, Ø6, Ø8, Ø10, Ø12 mm.
Choose the color: gray or black (D). Gray has a gray release button, D a black one.
AirTAC PU FAQ
Soft nylon or polyurethane tube with the matching outside diameter: Ø4, Ø6, Ø8, Ø10, Ø12 mm.
0 to 1.0 MPa, vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa, -20 to +70 °C.
D is the black version (black release button). No letter is gray.
No. You can order a single piece. Orders are processed and handed to the carrier within 3-5 business days.
Buying the PU from AirtacDistr
Genuine AirTAC parts
Every order code on this page is the AirTAC factory part number. Specifications follow the AirTAC Products Catalog 2026A. About us
Ready in 3-5 business days
That is our time to process the order and hand it to the carrier. No minimum order: a single piece can be ordered.
14-day returns, 1-year warranty
Return within 14 days of delivery; the buyer pays return shipping. The warranty covers defects not caused by misuse. Return policy
Engineering help
Send your application details and we will confirm the right order code, usually within 7-8 hours. Ask us
Page data checked against the live catalog on 2026-11-11.
Request a Quote for the PU
Send the order code, quantity and destination. We confirm price, stock and lead time, usually within 7-8 hours.