Airtac PYW Y-Type Reducing Tee Fitting PYW10-8D
The AirTAC Airtac PYW Y-Type Reducing Tee Fitting PYW10-8D 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 PYW10-8D
The PYW10-8D is an AirTAC different diameter union Y, an all-tube fitting that splits one 10 mm line into two push-in ports: the stem accepts Dia 10 soft nylon or polyurethane tube and the two branch legs accept Dia 8. Push the tube home and the internal chuck grips it; press the release ring to free it. Because it is a Y rather than a 90-degree tee, the split is angled, so the two downstream legs sit closer together and route more cleanly inside a machine frame.
This is the resin one-touch profile, not the metal BP line: 0-1.0 MPa working pressure, -750 mmHg vacuum, 1.5 MPa proof pressure and -20 to +70 C. The D suffix makes the whole body black, not just the button - on union-series parts like this the colour change runs through the body, whereas on PC and POC straight connectors it affects only the release button. There is no threaded port anywhere on this part, so no thread sealant or M5 gasket is involved at all.
Airtac PYW Y-Type Reducing Tee Fitting PYW10-8D Technical Specifications
| Model | Airtac PYW Y-Type Reducing Tee Fitting PYW10-8D |
|---|---|
| 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 PYW10-8D
| 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 PYW10-8D Is Used
Vacuum pick-and-place split
A 10 mm vacuum line from the ejector can split into two 8 mm legs feeding a pair of suction cups, keeping both cup lines the same length from one Y instead of adding a reducer plus a tee.
Fume-cabinet purge branch
Laboratory enclosure builders use the Dia 10 stem off the main purge header and the Dia 8 legs to feed two smaller curtain-air nozzles inside a chemical hood, where the -20 to +70 C resin rating covers the ambient range.
Packaging gripper feed
On a cartoning machine, the 10 mm manifold drop runs to the Y and the two 8 mm legs feed parallel gripper cylinders on the same station, trimming the fitting count and the number of joints that can leak inside the guard.
Is the Airtac PYW Y-Type Reducing Tee Fitting PYW10-8D the Right Part?
On the PYW ladder the neighbours are PYW8-6 below, which steps 8 mm down to 6 mm for lighter branches such as sensor air or small cups, and PYW12-10 above, which takes a 12 mm main feed down to 10 mm. Moving down saves panel space and suits shorter runs; moving up gives you a stiffer leg with more capacity for longer or hung loads. If your split needs a 90-degree branch instead of an angled one, the PEG or PEW different-diameter tee is the shape to compare, not the Y.
Tube OD must match each port exactly: the Dia 8 legs will not hold 1/4 in (6.35 mm) tube and the Dia 10 stem will not hold 3/8 in. If you find yourself pushing hard, the size is wrong - a correct one-touch joint seats by hand.
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 PYW10-8D FAQ
It is a different diameter union Y joining Dia 10 tube to two Dia 8 ports, with no threaded port. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), vacuum is -750 mmHg (10 Torr), proof pressure is 1.5 MPa and the temperature range is -20 to +70 C. Soft nylon or polyurethane tubing only. It uses the resin one-touch profile with a POM chuck and button, aluminium-alloy guide, stainless spring gasket and NBR O-ring; the D suffix gives the black body.
No. Each port is bored and chucked for exactly one tube OD, so the Dia 10 stem takes only 10 mm tube and each Dia 8 leg takes only 8 mm. That is the point of the different-diameter design: the fitting itself enforces the correct tube on the correct leg, so a misrouted line simply will not seat rather than leaking later. To release, hold the collar of that port down and pull the tube straight out - no tools, and AirTAC publishes no limit on how many times you may release it.
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