Airtac PZB Cross Threaded Fitting PZB802
The AirTAC Airtac PZB Cross Threaded Fitting PZB802 is a genuine threaded cross for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeThreaded cross
- SeriesPZB
- 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 PZB Cross Threaded Fitting PZB802
The AirTAC PZB802 is a one-touch threaded cross: a four-way pneumatic junction built around a male 1/4in PT stud, with the remaining legs each taking a push-in tube of Dia 8 mm outside diameter. It belongs to AirTAC's resin one-touch family, so a soft nylon or polyurethane tube simply pushes home until the stainless spring gasket and chuck grip it; pressing the POM release ring lets the tube pull free again, with the NBR O-ring holding the seal the whole time.
The standard resin ratings apply: 0 to 1.0 MPa working pressure, 1.5 MPa proof pressure, -750 mmHg (10 Torr) vacuum and -20 to +70 C. The threaded body is PBT with a brass stud that arrives with sealant already applied, so the stud goes straight into a tapped PT port without extra tape. Two non-obvious points worth knowing: the PZB prefix has no M5 version at all, and on the 1/8in thread the cross is only made in Dia 6 and Dia 8, so this 802 is the largest tube that fits a PZB801. A cross, unlike a tee, feeds a fourth leg, which is exactly what a two-axis branch plus a gauge or blow-off leg demands.
Airtac PZB Cross Threaded Fitting PZB802 Technical Specifications
| Model | Airtac PZB Cross Threaded Fitting PZB802 |
|---|---|
| Type | Threaded cross |
| Series | PZB |
| 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 PZB Cross Threaded Fitting PZB802
| PZB | Threaded 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 PZB Cross Threaded Fitting PZB802 Is Used
Packaging machine air distribution block
Feeding a two-axis cartoner where one 1/4in PT tapping on the manifold must serve bag clamp cylinders, a sealing jaw actuator and a trim blow-off - three 8mm drops taken off one point instead of three tapped ports.
Analyser sampling manifold
Splitting a single 8mm polyurethane line to a sensor, a calibration loop and a purge leg inside a process analyser cabinet, all hung off one threaded bulk port so the panel builder drills one hole, not three.
Workshop jig clamp circuit
A fixture builder running 8mm soft nylon to two swing clamps plus a sight-glass leg on a welding jig, using the cross so the gauge tap sits between the clamps rather than teeing off a cramped corner.
Is the Airtac PZB Cross Threaded Fitting PZB802 the Right Part?
On the 1/4in PT row of the PZB ladder, Dia 8 sits between Dia 6 (PZB602) and Dia 10 (PZB1002). Stepping down to 6 mm suits lighter actuator lines and keeps fitting height down; stepping up to 10 mm buys lower restriction on longer runs to multi-drop manifolds. If your tube is Dia 8 but the port differs, the same bore exists as PZB801 on 1/8in, PZB803 on 3/8in and PZB804 on 1/2in - thread choice changes only how the stud seals, not the tube bore.
Match the stud to the port you actually have: PT taper threads seal on the thread flanks, which is why the sealant pre-coat matters, and re-applying sealant after disassembly is good practice. Remember that tube OD must match exactly - a Dia 8 chuck will not seal or grip 1/4in (6.35 mm) hose, and forcing it in is the most common cause of a one-touch joint weeping under pressure. Where you only need three legs, a PEB or PED branch tee is the leaner part; reach for this cross only when the fourth leg is real.
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 PZB Cross Threaded Fitting PZB802 FAQ
It is a one-touch threaded cross taking Dia 8 mm tube on a 1/4in PT male thread. Working pressure is 0 to 1.0 MPa (0 to 10 kgf/cm2), proof pressure is 1.5 MPa, vacuum capability is -750 mmHg (10 Torr) and the temperature range is -20 to +70 C. Use soft nylon or polyurethane tube only; the body is grey PBT with a brass stud.
Yes. Within the PZB prefix, Dia 8 is offered on 1/8in PT (PZB801), 1/4in (this PZB802), 3/8in (PZB803) and 1/2in (PZB804), so you can keep the tube bore and change only the stud. Note the ladder narrows at the small end: PZB on 1/8in exists only in Dia 6 and Dia 8, and there is no M5 PZB at all - the smallest PZB thread is 1/8in.
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