Airtac PZ Cross Fitting PZ4
The AirTAC Airtac PZ Cross Fitting PZ4 is a genuine cross for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeCross
- SeriesPZ
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- Temperature-20 to +70 °C
- 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 PZ Cross Fitting PZ4
The PZ4 is an AirTAC PZ union cross, a tube-to-tube fitting with four push-in ports at 90 degrees to each other, all accepting Dia 4 mm soft nylon or polyurethane tubing. Push each tube firmly into its port and the internal stainless spring gasket and chuck grip it against the POM seal; to release, press the tube toward the body and hold the release ring down, then pull the tube free. Because it is a union, there is no threaded port at all - all four legs are tube connections, so it sits anywhere in a tubing run rather than on a valve or cylinder port.
It belongs to AirTAC's resin one-touch profile: working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure down to -750 mmHg (10 Torr), proof pressure 1.5 MPa and a temperature range of -20 to +70 C. The body is grey as standard (the D suffix orders black and on this series changes the body itself), and wetted parts are POM, aluminium alloy, stainless spring gasket and NBR O-rings. The -750 mmHg vacuum rating means the same cross can also serve suction and ejector lines, not just pressure circuits.
Airtac PZ Cross Fitting PZ4 Technical Specifications
| Model | Airtac PZ Cross Fitting PZ4 |
|---|---|
| Type | Cross |
| Series | PZ |
| Connection | Push-in one-touch |
| Working pressure | 0 - 1.0 MPa (0 - 10 kgf/cm2) |
|---|---|
| Negative pressure | -750 mmHg (10 Torr) |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Applicable tubing | Soft nylon or polyurethane tube |
| Thread standard | PT (Rc tapered) unless the code says otherwise |
POM release button and chuck, aluminium-alloy guide, stainless spring gasket, NBR O-ring; body brass or PBT depending on the part. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac PZ Cross Fitting PZ4
| PZ | Cross. |
|---|---|
| 4 / 6 / 8 / 10 / 12 | Tube outside diameter in mm (3.2 mm exists on the mini series). |
| M5 / 01 / 02 / 03 / 04 | Thread: M5x0.8, 1/8", 1/4", 3/8", 1/2" (M3 on the mini series). |
| D | Black. Blank = grey. |
Fitting & Sealing Notes
- check Cut the tube square and clean before pushing it home, or the seal will leak.
- check Push until it stops, then pull back to check the chuck has gripped.
- check To release, press the collet ring fully in and pull the tube out.
- check Threaded parts arrive with sealant on the thread; M5 sizes use a sealing gasket.
- check Match the tube OD exactly - a 6 mm fitting will not hold 1/4" tube.
Where the Airtac PZ Cross Fitting PZ4 Is Used
Pilot signal distribution on a bench rig
Feed one 4 mm signal line into the PZ4 and branch it simultaneously to four solenoid pilot ports on a laboratory test manifold, keeping all connections reversible between experiment runs.
Four-cup suction head on a pick-and-place
On a small electronics pick-and-place head, route the ejector's vacuum line to four mini suction cups through one Dia 4 cross; the -750 mmHg negative pressure rating covers the vacuum side as well as the blow-off side.
Air knife jets on a bottling line
Split a single Dia 4 mm supply into four short jet tubes aimed at bottle necks ahead of a filling station, using the cross as a compact node tucked behind the conveyor guard.
Is the Airtac PZ Cross Fitting PZ4 the Right Part?
Dia 4 is the smallest cross in the PZ ladder - there is nothing below it. The next size up is PZ6 for Dia 6 mm tube, which gives you a larger bore and more flow capacity per leg where the circuit can afford the space and the tubing cost. If you need to step between sizes inside a cross, do not adapt with extra reducers: AirTAC makes the PZG different-diameter cross for exactly that job, and a single correct part beats a chain of adapters.
Check the tube before anything else: the OD must match Dia 4 exactly (a 5/32 inch tube will not seal here) and the material must be soft nylon or polyurethane - semi-rigid nylon will not seat on the chuck. Remember the -20 to +70 C window is often set by the tubing, not the fitting, so confirm the tube's own rating if the line runs hot.
Quick checklist
- ✓ Tube outside diameter matches exactly
- ✓ Thread size and standard match the port
- ✓ Working pressure within 0 - 1.0 MPa (0 - 10 kgf/cm2)
- ✓ Temperature within -20 to +70 °C
Airtac PZ Cross Fitting PZ4 FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. All four ports accept Dia 4 mm soft nylon or polyurethane tubing, and the fitting is a tube-to-tube union with no threaded port.
No. The chuck and spring gasket are dimensioned for Dia 4 mm outside diameter only, and 5/32 inch (4.0 mm nominal but a different actual OD) will not clamp reliably. The tube must also be soft nylon or polyurethane; rigid or semi-rigid tubing cannot deform enough to seal. To release a tube, push it inward, press the release ring and pull it out.
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Covers non-human-caused product damage.
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Standard parts are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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