Airtac PZ Cross Fitting PZ12
The AirTAC Airtac PZ Cross Fitting PZ12 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 PZ12
The PZ12 is an AirTAC PZ union cross: a four-way, tube-to-tube one-touch fitting that joins four Dia 12 mm soft nylon or polyurethane tubes at a single symmetric point. There is no threaded port on this part - every leg is a push-in socket. Press each tube home and the internal chuck grips it; press the release ring at that leg and the tube frees again, leg by leg.
It runs on the resin and brass one-touch spec profile: 0 to 1.0 MPa (0-10 kgf/cm2) working pressure, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure, and -20 to +70 C. The body is PBT with POM release buttons and chucks, an aluminium-alloy guide, a stainless spring gasket and an NBR O-ring at each of the four legs.
Airtac PZ Cross Fitting PZ12 Technical Specifications
| Model | Airtac PZ Cross Fitting PZ12 |
|---|---|
| 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 PZ12
| 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 PZ12 Is Used
Wide palletising conveyor air drops
A 12 mm trunk line running down a palletising conveyor frame can tee off to lifters at three stations plus a blanking leg in one PZ12, instead of stacking three tees that add joints and leak paths.
Four-clamp stamping fixture
On a press-shop stamping fixture, four pneumatic swing clamps fed from one 12 mm drop can share a single PZ12 mounted inside the fixture body, keeping each clamp leg the same bore as the supply.
Vacuum hold-down on a CNC router bed
A vacuum hold-down manifold on a CNC router table can pull four suction zones from one 12 mm line through a PZ12, which is rated down to -750 mmHg so it holds under continuous vacuum duty.
Is the Airtac PZ Cross Fitting PZ12 the Right Part?
Step down from PZ12 to PZ10 and every leg drops to Dia 10 mm - still a main-line size, but with noticeably more restriction per leg on long runs, which matters when one cross feeds four downstream cylinders. PZ12 is the top of this range: AirTAC publishes no Dia 16 tube size, so there is no larger union cross to step up to within this catalogue. If your trunk is bigger than 12 mm, you are on the wrong family and should look at hard-piped distribution instead.
Because PZ12 has no thread, it cannot be bolted through a panel - that is the job of the PM bulkhead union or the PZB threaded cross, which does exist in Dia 12 behind a 1/2" PT port. Whichever shape you choose, tube OD must match exactly: a Dia 12 socket will not seal or hold 1/2" (12.7 mm) tube, even though the numbers look close.
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 PZ12 FAQ
PZ12 is a four-way union cross for Dia 12 mm soft nylon or polyurethane tube on all four legs, with no thread. Working pressure is 0 to 1.0 MPa (0-10 kgf/cm2), vacuum is -750 mmHg (10 Torr), proof pressure is 1.5 MPa and the temperature range is -20 to +70 C. The body is PBT with POM release buttons and NBR O-rings per leg.
No. The PZ series is a same-size cross - all four legs of the PZ12 take Dia 12 mm tube only. To step a branch down to a smaller tube, run Dia 12 to a PG different-diameter straight union or a PKG reducer triple branch. If you need a threaded take-off at the cross instead of a fourth tube, the PZB threaded cross in Dia 12 with a 1/2" PT port is the matching part.
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