Airtac PYW Y-Type Reducing Tee Fitting PYW8-6D
The AirTAC Airtac PYW Y-Type Reducing Tee Fitting PYW8-6D is a genuine different diameter union y for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeDifferent diameter union Y
- SeriesPYW
- 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 PYW Y-Type Reducing Tee Fitting PYW8-6D
The PYW8-6D is an AirTAC different diameter union Y, a three-way tube-to-tube fitting with no thread. A Dia 8 run enters one leg and leaves through two Dia 6 branch legs, so one supply line can be split into two smaller circuits at a single push-in point. Both diameters are fixed by the ordering code; there is no thread to seal, so the whole connection is made with tubing alone.
Push the soft nylon or polyurethane tube into each port until it bottoms: the internal chuck grips the tube wall and the NBR O-ring seals it. Pressing the release ring with a fingertip frees the tube again. This is the resin one-touch profile, not the metal line: 0 to 1.0 MPa (0 to 10 kgf/cm2) working pressure, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure and -20 to +70 C. Because this is a D-suffix part on the PYW series, the black finish covers the body itself, not just the release button.
Airtac PYW Y-Type Reducing Tee Fitting PYW8-6D Technical Specifications
| Model | Airtac PYW Y-Type Reducing Tee Fitting PYW8-6D |
|---|---|
| Type | Different diameter union Y |
| Series | PYW |
| 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 PYW Y-Type Reducing Tee Fitting PYW8-6D
| PYW | Different diameter union Y. |
|---|---|
| 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 PYW Y-Type Reducing Tee Fitting PYW8-6D Is Used
Pick-and-place gripper supply
A Dia 8 feed drops from the robot arm's manifold and splits into two Dia 6 lines feeding twin gripper cylinders, using one fitting instead of a tee plus a reducer.
Packaging line ejectors
On a carton packaging conveyor, a single Dia 8 branch from the machine's air dresser is divided into two Dia 6 drops for the small pusher cylinders that reject faulty packs.
PCB blow-off station
At an electronics plant's board-cleaning station, one Dia 8 feed from the air knife header splits through this Y into two Dia 6 nozzle lines, with the vacuum rating of -750 mmHg covering the suction side of the same circuit.
Is the Airtac PYW Y-Type Reducing Tee Fitting PYW8-6D the Right Part?
Step down to PYW6-4 when the trunk is Dia 6 and the branches are Dia 4, the usual choice for small pilot lines. Step up to PYW10-8 to branch a Dia 10 trunk into Dia 8 legs. Each step up in branch bore raises what both legs can pass together, so size the branch from the two consumers it feeds, not from the trunk alone. Remember the branches are always the smaller bore: capacity on this part is set by the Dia 6 legs, not the Dia 8 inlet.
Tube OD must match exactly. A Dia 6 port will not seal on 1/4 in (6.35 mm) tube, and forcing it in damages the chuck. If you need a threaded branch instead of a tube branch, a PEB male branch tee is the right shape; if you need two equal-size legs, the plain PY union Y covers that.
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 PYW Y-Type Reducing Tee Fitting PYW8-6D FAQ
It is an AirTAC different diameter union Y joining Dia 8 tubing to two Dia 6 branch legs, with no thread. Working pressure is 0 to 1.0 MPa (0 to 10 kgf/cm2), it holds -750 mmHg (10 Torr) vacuum, proof pressure is 1.5 MPa, and the temperature range is -20 to +70 C. It takes soft nylon or polyurethane tube only.
Usually yes, because two Dia 6 bores together present more cross-section than a single Dia 6, but the Dia 8 inlet is not unlimited either. Size the branches from what the two downstream consumers actually draw. Also note the vacuum figure means the same Y can serve suction pick circuits, not just pressure lines.
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