Airtac PY Y-Type Tee Connector PY8D
The AirTAC Airtac PY Y-Type Tee Connector PY8D 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 PY8D
The AirTAC PY8D is a union Y from the resin one-touch family: a three-way fitting that splits a single Dia 8 mm supply line into two equal 8 mm branch lines without any threaded port in between. Push the soft nylon or polyurethane tube into each port and the internal chuck grips the tube wall; press the POM release ring toward the body and the tube slides straight back out. Both legs take the same size, so the Y divides one feed into two rather than mixing two different bores.
This PY8D carries the D suffix, and on the PY series that means the body itself is moulded in black, not just the release button - useful when a dark fitting disappears against black machine guarding or when grey stock is kept for a different circuit. It shares the resin spec profile: 0 to 1.0 MPa working pressure, proof pressure 1.5 MPa, and a vacuum rating of -750 mmHg, so the same part can sit on a suction branch as happily as on a pressure feed. Working temperature is -20 to +70 C; at higher process temperatures the limit becomes the tubing, not the fitting body.
Airtac PY Y-Type Tee Connector PY8D Technical Specifications
| Model | Airtac PY Y-Type Tee Connector PY8D |
|---|---|
| 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 PY8D
| 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 PY8D Is Used
Vacuum sheet handling on a pick-and-place gantry
The -750 mmHg rating lets a PY8D split one vacuum generator feed out to two suction cups on a small sheet lifter, with both legs staying Dia 8 so cup response stays balanced.
Twin air jets on an electronics test bench
A single Dia 8 bench drop feeding two nozzles over a PCB fixture: the black body sits unobtrusively against dark bench framing, and both branches release with one push for fixture changes.
Branch feed on a packaging machine infeed
One supply line split to a small kiss-stamping cylinder and an air-blast on a carton infeed conveyor, both legs Dia 8 nylon tube routed around guarding without extra junction blocks.
Is the Airtac PY Y-Type Tee Connector PY8D the Right Part?
Step down to PY6 when the branch feeds small cylinders or low-flow jets and you want to keep the loop compact; step up to PY10 when two Dia 10 legs have to carry a compressor feed split across a machine. Each step changes the bore, and since AirTAC publishes flow for these parts only as a characteristic curve, size by what the tube must feed, not by a catalogue flow number. There is no thread side to match here - the whole part is tube-to-tube, so the only match that matters is exact: a Dia 8 port will not hold 1/4 inch (6.35 mm) tube, and forcing a near-size tube in is the usual cause of a slow leak on a Y junction. If you need the two branches to be different sizes, that is a PYW different diameter union Y, not this part. All ports take soft nylon or polyurethane tube only.
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 PY8D FAQ
The PY8D is a Dia 8 mm union Y in black (D suffix). It is a tube-to-tube part with no thread. Resin one-touch profile: working pressure 0 to 1.0 MPa (0 to 10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, temperature -20 to +70 C. Applicable tubing is soft nylon or polyurethane; the POM release button and chuck, aluminium-alloy guide, stainless spring gasket and NBR O-ring do the gripping and sealing.
No. Both legs of this union Y are Dia 8, so it splits one 8 mm line into two 8 mm branches. If you need to step a branch down - say an 8 mm supply feeding a 6 mm actuator line - AirTAC makes the PYW different diameter union Y for exactly that job. Also remember tube OD must match the fitting size exactly; a Dia 8 port will not grip 1/4 inch tube, even though the difference is only a couple of millimetres.
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