Airtac PYB Y-Type Threaded Tee Fitting PYB1203D-S
SUS304 stainless variant (-S)The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB1203D-S 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 PYB1203D-S
The PYB1203D-S is AirTAC's branch Y one-touch fitting from the PYB threaded series: a male 3/8in PT stud on one end and two Dia 12 mm tube outlets spread at a Y angle, so a single threaded port can feed two air lines at once. Push each tube home and the POM chuck inside grips its OD; the stainless spring gasket seats on the tube, and pressing the release ring frees the tube again without tools.
This is the resin/brass spec profile: 0-1.0 MPa working pressure, 1.5 MPa proof, -750 mmHg vacuum and -20 to +70 C with soft nylon or polyurethane tubing. The PT taper thread arrives pre-coated with sealant. On this -S variant the male stud is SUS304 for corrosion resistance while the body stays PBT, moulded in black because of the D suffix; every pressure and temperature figure matches the grey standard part exactly.
Airtac PYB Y-Type Threaded Tee Fitting PYB1203D-S Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB1203D-S |
|---|---|
| Type | Branch Y |
| Series | PYB |
| Connection | Push-in one-touch |
| Body material | Stainless steel 304 (-S variant) |
| 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. Stainless (-S): SUS304 in place of brass - a solid SUS304 body on the PC and POC straight connectors, and a PBT body with a SUS304 stud on the elbow, tee and branch shapes. Working pressure, proof pressure and temperature are unchanged from the standard version. 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 PYB1203D-S
| 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. |
| -S | Stainless-steel body. |
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 PYB1203D-S Is Used
Valve manifold branching
On a palletizer's 3/8in valve manifold outlet, one PYB1203D-S splits the supply into two Dia 12 cylinder lines without adding a separate tee block.
Dark-guarded machine interiors
Inside black-guarded CNC and packaging machine frames, the D-suffix body blends into the machine's dark styling where a standard grey fitting would stand out.
Vacuum pick-and-place
A venturi ejector on a carton-erector can feed two Dia 12 suction-cup lines from one port; the fitting is vacuum-rated to -750 mmHg, so it holds under ejector vacuum.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB1203D-S the Right Part?
Within the PYB 3/8in ladder, Dia 12 is the largest tube offered, so the only step down is the PYB1003, which drops to Dia 10 tubing: same thread, a smaller bore that routes through tighter spaces but moves less air through the Y. If the port rather than the tube is the constraint, the PYB1204 keeps the 12 mm tube and steps the stud up to 1/2in PT for larger manifolds.
Match the tube OD exactly - a Dia 12 Y will not grip 1/2in hose, and there is no reducer in this shape. If you need a 90-degree run branch instead of a Y split, compare the PED male run tee before ordering.
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 PYB1203D-S FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg, proof pressure 1.5 MPa, and a temperature range of -20 to +70 C. It takes Dia 12 mm soft nylon or polyurethane tube on a 3/8in PT male thread, in the SUS304-stud black-body variant.
No. On PYB-series -S parts only the male stud is SUS304; the body remains PBT with a POM chuck and NBR O-ring, exactly as the standard fitting. Ratings, dimensions and the tube/thread ladder are unchanged, and AirTAC publishes no certification for the stainless variant.
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