Airtac PY Y-Type Tee Connector PY4
The AirTAC Airtac PY Y-Type Tee Connector PY4 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 PY4
The AirTAC PY4 is a Dia 4 mm union Y in the resin one-touch range: a three-way tube-to-tube branch that splits a single 4 mm air line into two, with no port thread anywhere on the body. Where a PE tee puts its third leg at 90 degrees, the Y body angles the two branches, so tubing leaves the fitting along natural routes instead of fighting for corner space. Both branches and the leg share the same 4 mm bore, so flow capacity is set by the tube itself.
Connection is one-touch throughout: push the soft nylon or polyurethane tube home and the internal chuck grips it against the stainless spring gasket; press the POM release ring and the tube frees. The resin profile applies - working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa, temperature -20 to +70 C. Standard body colour is grey; the D suffix gives black on this series.
Airtac PY Y-Type Tee Connector PY4 Technical Specifications
| Model | Airtac PY Y-Type Tee Connector PY4 |
|---|---|
| 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 PY4
| 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 PY4 Is Used
Desktop pick-and-place branch
On a compact benchtop pick-and-place unit, the PY4 splits the 4 mm supply from the valve manifold into two legs feeding small parallel grippers, keeping both actuators on one outlet without a threaded tee.
Twin suction-cup vacuum line
For a small EOAT handling cartons with two light suction cups, the Y branches one 4 mm vacuum line into two cup feeds. The -750 mmHg rating covers the vacuum side as well as pressure.
PCB cleaning air-jet pair
On an electronics cleaning station, PY4 takes the 4 mm line from the solenoid valve and feeds two angled air jets aimed at the board, with the Y body following the direction the nozzles already point.
Is the Airtac PY Y-Type Tee Connector PY4 the Right Part?
Dia 4 is the smallest step in the PY ladder - PY4, PY6, PY8, PY10 and PY12 are the sizes made, and the 3.2 mm mini size used on some PC and PL parts does not exist on PY. So PY4 has no smaller sibling; the next size up is PY6, which doubles the bore area and suits slightly hungrier branch loads at the cost of a bulkier body. Step down to PY4 when the run is short and the downstream cylinders or jets are small.
Because this is a union, there is no thread to match - all three ports take 4 mm OD tube and nothing else. A Dia 6 fitting will not hold 4 mm tube and vice versa; the OD must match exactly. If you actually need to break the branch out of a threaded port, use a PEB male branch tee or PYB threaded Y instead, and keep the tube side at 4 mm.
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 PY4 FAQ
PY4 is a Dia 4 mm one-touch union Y with all three ports accepting 4 mm OD soft nylon or polyurethane tube and no threaded port. 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 working temperature range is -20 to +70 C. Standard colour is grey.
No. The chuck and gasket are dimensioned for exactly 4 mm OD tube; a 1/4 inch tube will neither seat in the gasket nor grip reliably, and the joint will leak or blow off under pressure. Use PY6 for 6 mm tube, or a PG6-4 different-diameter straight if you genuinely need to step between the two sizes in one run.
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1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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