Airtac PZB Cross Threaded Fitting PZB803
The AirTAC Airtac PZB Cross Threaded Fitting PZB803 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 PZB803
The PZB803 is an AirTAC PZB threaded cross: a four-way node that turns one 3/8in PT port into three one-touch outlets, each gripping an 8mm outer diameter tube. Push the tube in and the internal chuck jaws lock onto its surface; press the release ring and it slides straight back out. No tools, no ferrules, no re-taping between tube swaps.
This is the resin one-touch profile, not the metal line: working pressure 0-1.0 MPa, proof pressure 1.5 MPa, vacuum down to -750 mmHg, and a service window of -20 to +70 C with soft nylon or polyurethane tubing. The body is PBT over a brass stud, the release button is POM, and the seal is an NBR O-ring. The PT thread arrives pre-coated with sealant, so on a 3/8in port you can usually fit and seal it without extra paste or tape.
Airtac PZB Cross Threaded Fitting PZB803 Technical Specifications
| Model | Airtac PZB Cross Threaded Fitting PZB803 |
|---|---|
| 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 PZB803
| 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 PZB803 Is Used
Multi-gripper pick head on a gantry
A Cartesian pick-and-place head carrying three pneumatic grippers can take a single 3/8in drop hose from the valve manifold and split it at the tool plate with the PZB803, keeping the wrist light and the tubing run to each gripper short and equal in length.
Bottle rinser blow-off header
On a rotary bottle-rinsing or drying station, one threaded port on the rotating header can feed four Dia 8 air-jet nozzles around the carousel through a PZB803, so nozzles are spaced evenly and any one jet is released in seconds when it blocks.
Control cabinet purge distribution
Where a filtered instrument-air drop enters an electrical cabinet, a 3/8in bulk bulkhead port can branch to a cabinet purge, a panel-cooling vortex tube and a small air knife at once via the PZB803, all on one tube size for tidy spares.
Is the Airtac PZB Cross Threaded Fitting PZB803 the Right Part?
On the PZB ladder at 3/8in thread, the neighbouring sizes are PZB603 one step down (Dia 6) and PZB1003 one step up (Dia 10), with PZB1203 also offered at Dia 12. Stepping down trims the bore and suits shorter branch runs and lighter actuators; stepping up buys you more capacity for longer lines. Worth knowing: the 1/4in version of this cross tops out at Dia 10, so if your design feeds three 12mm tubes it must be a 3/8in or 1/2in PZB. PZB has no M5 variant and no Dia 4 version at all.
The 8mm tube bore must be matched exactly - a Dia 8 chuck will not seal on 5/16in or 10mm tube. If your port is 1/4in PT, move to PZB802 instead of adapting the thread. And if you only need two branches rather than three, the PED male run tee or PEB male branch tee is the simpler, smaller answer.
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 PZB803 FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, vacuum capability -750 mmHg (10 Torr), operating temperature -20 to +70 C. It accepts Dia 8mm outer diameter soft nylon or polyurethane tube on all three outlets and has a 3/8in PT male thread with sealant pre-applied. Body PBT over a brass stud, POM release button and chuck, aluminium-alloy guide, stainless spring gasket, NBR O-ring.
Yes. A spare outlet can be closed with an AirTAC PP plug-in plug in Dia 8, leaving the cross as a tee, or you can use the same port later without disturbing the other two tube connections. What you cannot do is force the wrong tube in - the chuck is sized for exactly 8mm outer diameter and will not hold 6mm or 10mm tube reliably, so any plug or tube swap must match the Dia 8 bore.
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