Airtac PZG Cross Reducing Fitting PZG8-6
The AirTAC Airtac PZG Cross Reducing Fitting PZG8-6 is a genuine different diameter cross for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeDifferent diameter cross
- SeriesPZG
- 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 PZG Cross Reducing Fitting PZG8-6
The PZG8-6 is an AirTAC PZG different diameter cross, a four-way tube-to-tube fitting that joins Dia 8 mm and Dia 6 mm soft tubing at a single junction with no threaded port anywhere on the body. Push each tube into its socket and the internal stainless spring gasket and chuck grip the outer wall; press the release ring and the tube frees again. It is the only different-diameter cross shape in the resin one-touch range.
This part belongs to the resin and brass spec profile, not the metal BP line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and a temperature window of -20 to +70 C. The body is PBT with a brass stud, the release button and chuck are POM, and the O-ring that does the actual sealing is NBR. Standard colour is grey; the D-suffix version changes the body to black.
Airtac PZG Cross Reducing Fitting PZG8-6 Technical Specifications
| Model | Airtac PZG Cross Reducing Fitting PZG8-6 |
|---|---|
| Type | Different diameter cross |
| Series | PZG |
| 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 PZG Cross Reducing Fitting PZG8-6
| PZG | Different diameter 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 PZG Cross Reducing Fitting PZG8-6 Is Used
Rotary indexing table cylinder feed
A Dia 8 trunk from the FRL meets the indexing table column; the PZG8-6 splits it into three Dia 6 drops feeding the clamp, lift and stopper cylinders without threaded junctions.
Conveyor stopper and kick cylinder cluster
Packaging line conveyors often mount two stoppers and a kick cylinder at one station. The cross lets one Dia 8 line feed all three Dia 6 actuators at a single push-in point beside the side rail.
Pick-and-place gantry air distribution
On a small Cartesian pick-and-place unit, the vertical axis carries Dia 6 tube to the gripper while the supply runs in Dia 8 along the beam. The cross at the beam end steps the feed down where the tubing changes size.
Is the Airtac PZG Cross Reducing Fitting PZG8-6 the Right Part?
Size ladder check: one step down is PZG6-4, which suits instrument-grade Dia 4 sensing lines; one step up is PZG10-8, which keeps a full Dia 10 trunk and branches to Dia 8. Moving from the 8-6 to the 10-8 roughly halves the pressure drop per metre of trunk because the bore grows with the tube OD, so it matters on long runs from a remote FRL. Remember the OD rule: a Dia 6 socket will not grip nominal 1/4 in (6.35 mm) tube, even though the numbers look close.
Pick a cross over a tee when two branches leave the same point in different planes, such as opposite sides of a machine column. If you need a threaded leg instead of four tube tails, that is PZB territory; if the branch is a single one, look at PE or PY. Only soft nylon or polyurethane tube is held by the chuck - metal tube will not 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 PZG Cross Reducing Fitting PZG8-6 FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum capability -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. The fitting joins Dia 8 mm tube on the larger side to Dia 6 mm tube on the smaller side at a four-way junction, and it accepts soft nylon or polyurethane tubing only.
Yes. The chuck and spring gasket grip the outer diameter, so each of the four sockets accepts either soft nylon or polyurethane independently - for example Dia 8 nylon on the supply legs and Dia 6 polyurethane on the actuator drops. The only hard rule is that the tube OD must equal the socket size exactly, and both tube materials must stay within the -20 to +70 C window, which is the fitting envelope here since nylon and PU tubing often have their own lower temperature ceilings.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard parts are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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