Airtac PZB Cross Threaded Fitting PZB1203
The AirTAC Airtac PZB Cross Threaded Fitting PZB1203 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 PZB1203
The PZB1203 is an AirTAC PZB threaded cross in the resin one-touch range: a four-way fitting with one 3/8" PT male thread on a Dia 12 mm tube circuit. Push each tube into its chuck and the internal gasket grips it instantly; press the POM release ring and the tube comes free, so a four-branch distribution point can be rebuilt without a spanner. As the largest bore in the PZB ladder, it carries the most air of any cross in the series, suiting it to feed lines rather than small pilot circuits.
It belongs to the resin/brass profile: 0 to 1.0 MPa (0 to 10 kgf/cm2) working pressure, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure and -20 to +70 C on soft nylon or polyurethane tubing. The grey body is PBT with a brass threaded stud, POM release buttons and an NBR O-ring, and the 3/8" thread arrives with sealant already applied, ready to wind into the port.
Airtac PZB Cross Threaded Fitting PZB1203 Technical Specifications
| Model | Airtac PZB Cross Threaded Fitting PZB1203 |
|---|---|
| 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 PZB1203
| 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 PZB1203 Is Used
Palletiser clamp manifold feed
Splitting the supply from a 3/8" valve manifold port into four 12 mm drop lines feeding gripper and clamp cylinders on a palletising cell, with the cross doing the four-way division at the manifold face.
Conveyor air-knife row
Distributing air along a food-grade conveyor where four 12 mm blow-off lines branch from one threaded supply point above the belt; the 1.0 MPa rating and 70 C ceiling fit plant-air duty.
Machine tool coolant-blow header
On a CNC chip-clearing circuit, a single 3/8" port dividing into four 12 mm nozzles around the work area, with the release ring letting operators re-route nozzle lines during changeover.
Is the Airtac PZB Cross Threaded Fitting PZB1203 the Right Part?
On the PZB ladder at 3/8" thread the available tubes are 6, 8, 10 and 12 mm, so this SKU is the top of that row. The step down to PZB1003 halves the bore area and lightens the cross for pilot-air distribution; there is no Dia 16 in this catalogue, so Dia 12 is the largest tube a PZB cross accepts. For thread, the same Dia 12 tube exists on a 1/2" PT stud (PZB1204) where the port is bigger, but note the 1/4" row tops out at Dia 10, so there is no smaller-thread equivalent in this bore.
A cross is the right answer only when four lines genuinely meet at one point - two opposing pairs of branches plus the threaded inlet. If the run only needs three legs, a PEB or PED male tee is cheaper and tidier, and if the branches head off at angles rather than axes, PH or PHF universal elbows swing to the actual route. Match the tube OD exactly: the chuck on this cross holds 12 mm tube and nothing else, so 1/2" (approx 12.7 mm) Imperial tube will not seat or seal.
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 PZB1203 FAQ
Working pressure 0 to 1.0 MPa (0 to 10 kgf/cm2), negative pressure down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and a temperature range of -20 to +70 C. This SKU joins Dia 12 mm soft nylon or polyurethane tube on all four legs and carries a 3/8" PT male thread. AirTAC publishes flow for the PZB series as a characteristic curve only, so no L/min or Cv figure is stated; capacity scales with the 12 mm bore, the largest in this series.
No. The thread code and the tube code describe different things: 03 in PZB1203 is the 3/8" PT male stud, while the 12 is the tube outside diameter, which is 12 mm. The chuck grips only 12 mm metric tube; a 3/8" (9.5 mm) or 1/2" (12.7 mm) Imperial tube will neither seal nor release correctly. Tube OD and fitting size must match exactly on every one-touch connection.
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