Airtac PZB Cross Threaded Fitting PZB603D
The AirTAC PZB Cross Threaded Fitting PZB603D 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 PZB603D
The PZB603D is an AirTAC PZB one-touch threaded cross in black: a single 3/8 inch PT male thread feeding three Dia 6 mm tube outlets arranged as a cross, so four pneumatic lines meet at one point. Push each soft nylon or polyurethane tube into its port until it bottoms out; the internal chuck grips the tube wall and the stainless spring gasket plus NBR O-ring seal it. Pressing the POM release ring unclamps the tube for rework or re-routing. The male thread arrives with sealant already applied, so the part is ready to wind straight into the port.
This is the resin spec profile, not the metal one: working pressure 0-1.0 MPa, negative pressure to -750 mmHg, proof pressure 1.5 MPa, and a service window of -20 to +70 C. The D suffix makes the PBT body black rather than the standard grey, which helps the cross blend into black control hardware or colour-coded machine sections. Ratings, dimensions and the internal brass stud are identical to the grey PZB603.
Airtac PZB Cross Threaded Fitting PZB603D Technical Specifications
| Model | Airtac PZB Cross Threaded Fitting PZB603D |
|---|---|
| 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 PZB603D
| 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 PZB603D Is Used
Robot gripper air distribution
On an end-of-arm tooling plate, the 3/8 inch feed from the valve block arrives at one point and three Dia 6 lines must leave for suction cups and a small gripper cylinder. The cross makes that split at the wrist without a fabricated manifold block.
Tray denesting machine supply
Packaging machines that separate stacked trays often run three small Dia 6 blow-off or vacuum-assist lines from a shared 3/8 inch drop. A single PZB603D at the drop point replaces three tees and keeps the plumbing stack height low.
Jig and fixture clamping bank
Weldment checking fixtures frequently clamp from one air feed with several compact clamp cylinders plumbed in Dia 6. The cross gives the fixture builder a four-way junction in black PBT that sits neatly against black anodised fixture plates.
Is the Airtac PZB Cross Threaded Fitting PZB603D the Right Part?
On the 3/8 inch row of the PZB ladder, Dia 6 is the smallest tube offered, so there is nothing below it on this thread; the step up is PZB803, which swaps the three legs to Dia 8 mm and gives a noticeably larger bore per leg. If your port is smaller instead, PZB602 on a 1/4 inch thread and PZB601 on a 1/8 inch thread both carry the same Dia 6 tube legs, so you can keep the tube run unchanged and only change the thread. Match the thread to the existing port rather than re-tapping: the PZB line is documented in PT only, and AirTAC publishes no G or NPT code for it. Note also that a cross is only the right shape when three tube branches genuinely leave the same point; with two branches use a tee such as the PEB, and with one a plain PC connector is lighter and cheaper. Whatever you order, the tube OD must match exactly - a Dia 6 port will not hold 1/4 inch tube, which is nominally close but a different size.
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 PZB603D FAQ
It is a resin one-touch threaded cross with three Dia 6 mm tube outlets and one 3/8 inch PT male thread. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), negative pressure goes to -750 mmHg, and proof pressure is 1.5 MPa. Service temperature is -20 to +70 C, and it takes soft nylon or polyurethane tubing only.
No. On the PZB series the D suffix changes the body colour to black; the PBT body, brass stud, pressure and temperature ratings, and every dimension stay the same as the grey part. If appearance does not matter on your machine, the two are functionally interchangeable, and neither version carries a separate flow rating - capacity follows the Dia 6 bore of the three tube legs.
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