Airtac PZG Cross Reducing Fitting PZG6-4D
The AirTAC Airtac PZG Cross Reducing Fitting PZG6-4D 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 PZG6-4D
The PZG6-4D is an AirTAC different diameter cross from the resin one-touch union range. Its main run is Dia 6 mm tube and all three branch ports take Dia 4 mm tube, so a single 6 mm feed can be split four ways without any threaded adapter in between. The D suffix means the PBT body is moulded in black instead of the standard grey.
Connection is the usual one-touch action: push the soft nylon or polyurethane tube straight into each port until it bottoms out, and the stainless spring gasket plus POM chuck grip it on the OD; press the release ring and the tube slides free again. This is the resin spec profile, not the metal BP line: 0 to 1.0 MPa working pressure, -750 mmHg vacuum capability, 1.5 MPa proof pressure and a -20 to +70 C operating window, sealed by NBR O-rings at every port.
Airtac PZG Cross Reducing Fitting PZG6-4D Technical Specifications
| Model | Airtac PZG Cross Reducing Fitting PZG6-4D |
|---|---|
| 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 PZG6-4D
| 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 PZG6-4D Is Used
Pick-and-place head air distribution
On a compact electronics pick-and-place head, one Dia 6 feed from the swing cylinder circuit can be split into three Dia 4 drop lines feeding small gripper jets, all at the head with no loose couplings to shake loose.
Lab dispenser air jets
A benchtop liquid-dispensing or labelling rig can take its Dia 6 supply and branch it three ways to Dia 4 actuator lines on the dispense, wipe and eject stations using one cross instead of a nest of tees.
Control cabinet cylinder feed
Inside a compact machine control cabinet, a Dia 6 output from the valve manifold block feeds three Dia 4 cylinder circuits through this cross, keeping the routing to a single four-way junction.
Is the Airtac PZG Cross Reducing Fitting PZG6-4D the Right Part?
Dia 4 is the smallest tube size AirTAC makes in this range, so PZG6-4 is already the bottom step of the different-diameter cross ladder; there is no smaller reduction below it. The next step up is PZG8-6, which turns the logic around and feeds three Dia 6 branches from a Dia 8 run - pick that if your main line is 8 mm. If you only need two branches rather than three, a PEG or PEW different diameter tee in 6-4 does the same job with one port fewer. Note that port sizes are exact: a Dia 4 port will not hold 5/32 inch (4 mm nominal but metric-exact only in name) substitutes or 1/8 inch tube, and the Dia 6 run will not seal on 1/4 inch (6.35 mm) tubing despite the near match.
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 PZG6-4D FAQ
It is a different diameter cross joining Dia 6 mm main-run tube to three Dia 4 mm branch ports, with no thread - it is a pure tube-to-tube union. Working pressure is 0 to 1.0 MPa (0 to 10 kgf/cm2), it also handles -750 mmHg (10 Torr) vacuum, proof pressure is 1.5 MPa, and the temperature range is -20 to +70 C. The body is black PBT (D suffix) with POM chucks, aluminium-alloy guides, stainless spring gaskets and NBR O-rings.
Use soft nylon or polyurethane tubing only; harder materials will not seal on the chuck gasket. Do not substitute 1/4 inch (6.35 mm) tube in the Dia 6 run - the 0.35 mm oversize stops the tube seating on the spring gasket and the joint will leak or blow off under pressure. Match the stated diameters exactly on all four ports.
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