Airtac PKG Reducing Five-Way Fitting PKG10-8D
The AirTAC Airtac PKG Reducing Five-Way Fitting PKG10-8D 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 PKG10-8D
The PKG10-8D is an AirTAC reducer triple branch union from the resin one-touch range. It joins a Dia 10 mm tube run to Dia 8 mm tube at a three-way branch, so one 10 mm supply header can feed three separate 8 mm take-offs without any adaptor fittings. The trailing D in the code is the colour option: the body comes in black instead of the standard grey, which is handy when you colour-code circuits on a machine. Push each tube home and the internal chuck grips its outer diameter; press the release ring to let go. Being a pure union, there is no port thread at all, so no thread sealant and no port pitch to match - only tube bore matters.
This is the resin/brass spec profile, not the metal one: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa and a service temperature of -20 to +70 C. Internals are a POM release button and chuck, a stainless spring gasket and an NBR O-ring. Use soft nylon or polyurethane tube only, and insert each end until it bottoms out - a partially seated tube is the most common cause of a one-touch leak.
Airtac PKG Reducing Five-Way Fitting PKG10-8D Technical Specifications
| Model | Airtac PKG Reducing Five-Way Fitting PKG10-8D |
|---|---|
| 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 PKG10-8D
| 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 PKG10-8D Is Used
Packaging carousel vacuum distribution
A rotary filling or cartoning carousel often runs a Dia 10 nylon header around the frame, with each station needing its own ejector line. This union taps three Dia 8 legs off that header in one part, replacing two reducers and a tee.
Robot gripper air drops in an automotive cell
On a spot-weld or assembly robot, a Dia 10 drop from the valve block can feed three Dia 8 lines to parallel grippers and a clamping cylinder, keeping the harness on the arm short and tidy.
Test bench actuator split in electronics assembly
A bench-mounted PCB press or test station fed by one 10 mm line can split to three 8 mm actuator circuits - press cylinder, ejector pins and a part-clamp - with a single black-bodied union at the manifold plate.
Is the Airtac PKG Reducing Five-Way Fitting PKG10-8D the Right Part?
The 10-to-8 step sits near the top of the resin reducer ladder: Dia 12 is the largest tube size in the wider one-touch family, while Dia 8 and below cover most actuator and sensor work. If your branch needs a port thread as well as a size change, the threaded PKD line is the natural companion - PKD10-803 steps a Dia 10 branch down to Dia 8 on a 3/8" thread, and PKD8-602 steps Dia 8 down to Dia 6 on a 1/4" thread. Use those when you land on a manifold; use this PKG when you are joining tube to tube mid-run.
Tube OD must match exactly on every leg. The Dia 10 side will not hold a 12 mm or a 10.5 mm tube and the Dia 8 legs will not hold 1/4" or 6 mm tube, even though the numbers look close. If your supply is already 8 mm, you do not need a reducer at all - look at the PE union tee instead and keep the PKG for genuine 10-to-8 transitions.
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 PKG10-8D FAQ
It is a resin one-touch reducer triple branch union for Dia 10 mm tube on the supply side and Dia 8 mm tube on the three branches, in the black D colour option. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), it holds vacuum to -750 mmHg (10 Torr), proof pressure is 1.5 MPa and the service temperature range is -20 to +70 C. Soft nylon or polyurethane tube only.
No. The gripping chuck is machined for one tube outer diameter and seals on it, so each leg must be fed with exactly its coded size - Dia 10 tube on the large side and Dia 8 tube on the three branch legs. An 8 mm tube pushed into the Dia 10 port will slide straight out or leak under pressure. If both sides of your joint are 8 mm, order a plain PE union tee rather than this reducer.
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