Airtac PZ Cross Fitting PZ8
The AirTAC Airtac PZ Cross Fitting PZ8 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 PZ8
The PZ8 is an AirTAC PZ cross, a four-port tube-to-tube union that joins four lengths of Dia 8 mm soft nylon or polyurethane tubing at a single push-in junction. There is no threaded port: all four legs are identical tube sockets, so the cross can feed air in any direction the piping needs. Push each tube home and the internal chuck grips the OD; press the POM release ring toward the body and the same chuck lets go.
This is the resin and brass one-touch family, not the metal BPC line. Rated working pressure is 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, and it also holds -750 mmHg (10 Torr) on vacuum circuits, over a temperature span of -20 to +70 C. The body uses a POM release button and chuck, an aluminium-alloy guide, a stainless spring gasket and an NBR O-ring. The standard colour is grey; the D suffix version in this series is black.
Airtac PZ Cross Fitting PZ8 Technical Specifications
| Model | Airtac PZ Cross Fitting PZ8 |
|---|---|
| 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 PZ8
| 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 PZ8 Is Used
Junction block on a packaging machine manifold
Splitting one Dia 8 supply drop from an FRL into two actuator feeds plus a purge line, all at one push-in point that can be rebuilt by hand during changeover.
Air distribution on a conveyor divert station
Feeding the divert cylinder, the product-detect blow-off and the rail clamp from a single 8 mm cross tucked under the side rail, keeping hose runs short and equal in length.
Vacuum channel on a lab sample-handling rig
The -750 mmHg (10 Torr) rating lets the PZ8 act as a four-way node on a low-vacuum pick-and-place circuit where a suction cup line branches to a venturi and a gauge.
Is the Airtac PZ Cross Fitting PZ8 the Right Part?
PZ8 sits mid-ladder: PZ6 steps down to 6 mm tube for lighter pilot lines, and PZ10 steps up to 10 mm where a downstream cylinder or valve draws noticeably more air. Because flow capacity follows the bore, moving from 8 mm to 10 mm buys headroom on longer runs, while 6 mm keeps the junction compact on signal and pilot duty. AirTAC publishes flow for these fittings only as a characteristic curve, so size by tube bore and connected device rather than by a quoted flow figure.
Tube OD must match exactly - a Dia 8 socket will not seal on 1/4 in (6.35 mm) hose. If the branch instead has to land on a threaded port, the PZB threaded cross is the shape to look at; if a panel wall separates the circuits, consider a PM bulkhead union rather than forcing this cross into the role.
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 PZ8 FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, negative pressure -750 mmHg (10 Torr), temperature -20 to +70 C. The part accepts four lengths of Dia 8 mm soft nylon or polyurethane tube; there is no threaded port. It belongs to the resin/brass one-touch family and is supplied grey as standard.
No. Every socket on a PZ cross is cut for one tube OD, so a PZ8 grips only Dia 8 mm tube on all four legs - a common trap because 1/4 in hose looks close but is 6.35 mm. If your circuit needs different diameters meeting at a junction, look at the different-diameter shapes AirTAC makes, such as the PZG cross, instead of forcing an adaptor onto this part.
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Covers non-human-caused product damage.
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Most inquiries answered within 7-8 hours.
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