Airtac PZ Cross Fitting PZ12D
The AirTAC Airtac PZ Cross Fitting PZ12D 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 PZ12D
The PZ12D is an AirTAC PZ cross, a four-way one-touch union that joins four Dia 12 tubes at right angles in a single plane with no threaded port at all. Push each tube home into its socket and the internal chuck grips it; press the release ring to free it again. Because it is tube-to-tube, there is no PT thread and no sealant joint to make - the whole junction lives and dies on the tube seal alone.
This is a resin-line part, not the metal BPC family: working pressure 0-1.0 MPa, vacuum down to -750 mmHg, proof pressure 1.5 MPa, and a temperature window of -20 to +70 C. The body is PBT with a POM release ring and chuck, aluminium-alloy guide, stainless spring gasket and NBR O-rings. The D suffix makes this body black rather than the standard grey - on PZ the colour code changes the body itself, unlike PC and POC where it only changes the release button. Soft nylon or polyurethane tubing only.
Airtac PZ Cross Fitting PZ12D Technical Specifications
| Model | Airtac PZ Cross Fitting PZ12D |
|---|---|
| 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 PZ12D
| 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 PZ12D Is Used
Distribution node on a packaging machine frame
A Dia 12 main run arrives at the frame and four Dia 12 branches leave at 90 degrees to feed downstream valves. One PZ12D replaces four tees and a coupling, cutting four push-in joints down to four sockets in a single black body that disappears against painted machine panelling.
Air jet array for chip and dust blow-off
On a machining cell, a Dia 12 feed split four ways can run short polyurethane legs to four nozzles clearing chips from a fixture. The cross keeps all four take-offs in one rigid node on the machine column, and the 0-1.0 MPa rating covers typical blow-off circuits with margin.
Conveyor section changeover junction
Modular conveyors are reconfigured often, so a four-way union lets a supply line feed two upstream and two downstream sections and be unclipped in seconds using the release ring - no thread tape, no spanner, no loose fittings to lose during a line change.
Is the Airtac PZ Cross Fitting PZ12D the Right Part?
Dia 12 is the top of the PZ ladder. Step down to PZ10D for a Dia 10 line and you gain a more compact node and slightly better flow headroom on longer runs; there is no larger union cross in this catalogue - a Dia 16 tube does not exist here - so if your line is bigger than Dia 12 you need a different family, not a bigger PZ. Remember that tube OD must match exactly: a Dia 12 socket will not hold 10 mm or 1/2 inch tube properly, and a 12 mm tube will not seal in a Dia 10 cross.
If your four legs are not all the same diameter, the PZG different-diameter cross is the correct part instead - PZ12D assumes four equal Dia 12 ways. To pass the junction through a panel or enclosure wall, look at the PM bulkhead union rather than trying to make a cross do a panel job.
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 PZ12D FAQ
The PZ12D is an AirTAC PZ union cross for four Dia 12 tubes, tube-to-tube with no threaded port. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and operating temperature -20 to +70 C. It suits soft nylon or polyurethane tubing of exactly 12 mm OD, and the D suffix means a black body instead of grey.
No. All four ways of the PZ12D take Dia 12 tube only, and the chuck will not seal on a different OD. To step diameters inside a cross, AirTAC makes the PZG different-diameter cross, which is the correct part for mixed-size networks. Alternatively put a PG straight reducer in the run first, then feed the PZ12D four equal ways.
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