Airtac PY Y-Type Tee Connector PY8
The AirTAC Airtac PY Y-Type Tee Connector PY8 is a genuine union y for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeUnion Y
- SeriesPY
- 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 PY Y-Type Tee Connector PY8
The PY8 is an AirTAC PY union Y, a tube-to-tube one-touch fitting that joins three lengths of Dia 8 mm soft nylon or polyurethane tubing in a Y shape: one straight stem plus two angled branches. Push each tube into its port and the internal stainless spring gasket and chuck grip the OD to seal; press the release ring to free it again. There is no thread on this part, so it sits purely in the tubing run rather than at a port.
This is the resin one-touch profile, not the metal BP line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa and a temperature range of -20 to +70 C. The standard body colour is grey, and a D suffix version is available in black. The angled Y body spreads side load better than a rigid tee when tubing is pulled or vibrated, which is why it is often preferred on moving sub-assemblies.
Airtac PY Y-Type Tee Connector PY8 Technical Specifications
| Model | Airtac PY Y-Type Tee Connector PY8 |
|---|---|
| Type | Union Y |
| Series | PY |
| 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 PY Y-Type Tee Connector PY8
| PY | 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 PY Y-Type Tee Connector PY8 Is Used
Twin cylinder feed on a packaging machine
One 8 mm supply from the manifold splits into two equal branches feeding a pair of small clamp cylinders, so both actuate from a single run instead of two separate lines back to the valve.
Vacuum pick-and-place on a cartoner infeed
The PY8 carries the -750 mmHg vacuum rating, so one 8 mm vacuum line from the ejector can branch to two suction cups on a gantry, with the angled body keeping tube stress low as the head lifts.
Coolant-free air sparge on a plating line
In wash-down prone chemical environments where the resin body is acceptable, a single 8 mm air feed branches to two agitating points over the tank, and the push-in ports allow tubes to be re-routed without tools.
Is the Airtac PY Y-Type Tee Connector PY8 the Right Part?
PY8 sits in the middle of the PY ladder. Step down to PY6 for 6 mm drops to small actuators and pilot lines, or up to PY10 for 10 mm feeds on larger cylinders; the Y angle stays the same, only the bore and the air capacity change. All three ports on PY8 are Dia 8 mm, so it cannot mix sizes - if you need to branch from 8 mm down to 6 mm, the different diameter union Y PYW or a PG straight reducer is the correct part, not this model.
Match the tube, not a nominal equivalent: a true 8 mm OD soft nylon or PU tube seats fully, while a 5/16 inch or 1/4 inch tube will not seal reliably in the same chuck. If the branch needs to turn 90 degrees instead of splitting, the PV8 union elbow is the neighbouring shape to compare.
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 PY Y-Type Tee Connector PY8 FAQ
The PY8 is a one-touch union Y for Dia 8 mm soft nylon or polyurethane tubing on all three ports. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), negative pressure is -750 mmHg (10 Torr) and proof pressure is 1.5 MPa. Temperature range is -20 to +70 C. It is a resin-body tube-to-tube part with no thread, in grey as standard.
No. All three ports of the PY8 grip exactly 8 mm OD tubing, and a Dia 6 tube will not seal in the same chuck. To change diameter at the branch, AirTAC offers the PYW different diameter union Y, or you can put a PG straight reducer on one leg - for example PG8-6 steps a Dia 8 run down to Dia 6 before it reaches the PY.
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