Airtac PYB Y-Type Threaded Tee Fitting PYB1204D
The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB1204D is a genuine branch y for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeBranch Y
- SeriesPYB
- 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 PYB Y-Type Threaded Tee Fitting PYB1204D
The AirTAC PYB1204D is a branch Y one-touch fitting: a Dia 12 mm tube pushes straight into the stem, while a 1/2 in PT male thread screws into the port. From that single port the airflow splits into two angled outlets instead of the 90 degree legs of a run tee, which is handy when two lines must leave the same supply point without a hard corner. Inside, a POM chuck with a stainless spring gasket grips the tube the moment it bottoms out; press the release ring and the tube frees again.
This is the resin and brass one-touch profile, not the metal BP line: working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, vacuum to -750 mmHg (10 Torr), and a temperature window of -20 to +70 C with soft nylon or polyurethane tubing. The D suffix on a PYB changes the whole body to black, unlike the PC series where it only alters the release button, so the fitting reads as part of a dark machine interior rather than a spare part.
Airtac PYB Y-Type Threaded Tee Fitting PYB1204D Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB1204D |
|---|---|
| Type | Branch Y |
| Series | PYB |
| 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 PYB Y-Type Threaded Tee Fitting PYB1204D
| PYB | Branch 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 PYB Y-Type Threaded Tee Fitting PYB1204D Is Used
Bottling line gripper supply
On a beverage filler, the 1/2 in PT thread lands straight on the valve manifold outlet and the Y splits 12 mm supply to the two gripper cylinders of one station without adding a tee block and a second fitting joint.
Robotic palletiser end-of-arm
A palletiser EOAT needs vacuum-tight, vibration-proof joints in a compact wrist: the angled Y legs route two air lines around the gripper frame, and the black body stays visually unobtrusive against dark tooling.
Semiconductor tool purge distribution
A fab process tool splits one 12 mm nitrogen purge feed into two chamber inlets; the full-bore Dia 12 path keeps purge flow capacity tied to the tubing, and the one-touch seal handles the -750 mmHg vacuum side of the cycle.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB1204D the Right Part?
Dia 12 is the top of the PYB ladder, so there is no larger tube to step up to - this is the fitting when the main supply run is already 12 mm. Step down at the same 1/2 in thread to PYB1004 (Dia 10) when the branch lines are lighter; step the thread instead to PYB1203 (Dia 12, 3/8 in PT) when the port is smaller but the bore must stay full. Both appear in the PYB row of the interface table, so both are real, shippable options.
Match the 1/2 in thread to the port you have: PT is the only standard documented for this catalogue, and the thread arrives with sealant already applied. Tube OD must match exactly - a Dia 12 chuck will not seal on 1/2 in imperial tube at 12.7 mm. If you need the branch to pass through a panel rather than split at a port, the PM bulkhead union is the shape to reach for instead.
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 PYB Y-Type Threaded Tee Fitting PYB1204D FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2); proof pressure 1.5 MPa; negative pressure -750 mmHg (10 Torr); operating temperature -20 to +70 C. The fitting accepts Dia 12 mm soft nylon or polyurethane tube on all three legs and carries a 1/2 in PT male thread on the stem. It is the resin/brass one-touch profile with POM chuck, stainless spring gasket and NBR O-ring, and the D suffix makes the body black.
No. The 1/2 in code on this part refers to the PT thread only; the tube side is Dia 12 mm, which is 12.0 mm, not 12.7 mm. A 1/2 in imperial tube will not seat in the chuck and will leak or blow out under pressure. Cut a metric 12 mm tube to length, push it fully home until it stops, and the spring gasket will grip it. The 1/2 in PT thread ships with sealant applied, so hand-tight plus a light spanner check is normally all it needs.
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