Airtac PKG Reducing Five-Way Fitting PKG8-6D
The AirTAC Airtac PKG Reducing Five-Way Fitting PKG8-6D is a genuine reducer triple branch union for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeReducer triple branch union
- SeriesPKG
- 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 PKG Reducing Five-Way Fitting PKG8-6D
The PKG8-6D is an AirTAC PKG reducer triple branch union, a tube-to-tube fitting that joins Dia 8mm run tubing to a Dia 6mm branch in a single push-in body. Because there is no threaded port, nothing needs sealant or a gasket: the joint is made entirely by the one-touch chuck, which grips each tube with stainless spring gaskets and NBR O-rings as it seats. To release, press the tube inward first, then depress the POM release ring and the tube frees.
This is the resin and brass one-touch profile, not the metal BP line: 0-1.0 MPa (0-10 kgf/cm2) working pressure, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure and -20 to +70 C temperature, for soft nylon or polyurethane tubing. The D suffix gives the whole body a black finish on this series, unlike PC and POC where D only changes the release button, so a dark machine interior can keep its colour scheme without changing the specification.
Airtac PKG Reducing Five-Way Fitting PKG8-6D Technical Specifications
| Model | Airtac PKG Reducing Five-Way Fitting PKG8-6D |
|---|---|
| Type | Reducer triple branch union |
| Series | PKG |
| 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 PKG Reducing Five-Way Fitting PKG8-6D
| PKG | Reducer triple branch union. |
|---|---|
| 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 PKG Reducing Five-Way Fitting PKG8-6D Is Used
Vacuum generator drop on a pick-and-place head
Run 8mm supply tubing along the gantry beam, then branch down to 6mm at the vacuum ejector so the lighter tube tracks the head without loading the mounting bracket.
Air knife feed on a bottling line
Tap the 8mm main header with a 6mm branch to feed a small air knife that dries bottle necks before labelling, keeping one supply size along the conveyor and one at the nozzle.
Pilot signal tap on a machine control panel
Branch a 6mm pilot line to a directional control valve off an 8mm interlock circuit, letting the big supply size carry the work flow while the signal side stays light and responsive.
Is the Airtac PKG Reducing Five-Way Fitting PKG8-6D the Right Part?
Sizing runs on tube outside diameter, which must match exactly on every leg: an 8mm branch port will not seal 5/16 inch tube, and the 6mm side will not hold 1/4 inch. If 6mm is still too large for the branch, 4mm is the next step down in the range; if the run side can be upsized, 10mm and 12mm are the next Diameters up, trading fitting capacity for stiffer tubing and slower actuation on small cylinders. Stepping down from an 8mm trunk is usually the right call when the branch feeds one 6mm device, because flow capacity follows the smallest bore in the path.
If the branch actually needs to screw into a valve or manifold port instead of meeting another tube, that is a job for a threaded branch tee such as PEB with a matching 1/8 inch or 1/4 inch stud, not this union. Keep the PKG for pure tube-to-tube junctions where three lines converge.
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 PKG Reducing Five-Way Fitting PKG8-6D FAQ
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. It is a reducer triple branch union joining Dia 8mm tube to Dia 6mm tube with no threaded port, in the resin one-touch range for soft nylon or polyurethane tubing. Proof pressure is 1.5 times the working rating.
On this series the D suffix changes the body colour to black; the pressure, vacuum, temperature and tube dimensions are identical to the grey standard version. Fittings arrive with no thread sealant to worry about either, since this is a pure tube-to-tube union with nothing to seal. Just confirm your tubing is soft nylon or polyurethane and cut it square before pushing it home.
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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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