Airtac PYB Y-Type Threaded Tee Fitting PYB803-S
SUS304 stainless variant (-S)The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB803-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 PYB803-S
The AirTAC PYB803-S is a PYB branch Y one-touch fitting: a 3/8in PT male thread feeding two Dia 8mm push-in ports set at a Y angle. Push the soft nylon or polyurethane tube home and the chuck set grips it; press the POM release ring and the spring gasket frees the tube again. The male thread arrives with sealant already applied, so it seals straight into a PT port without extra tape.
The -S suffix puts a SUS304 stud behind the 3/8in thread while the Y body itself remains PBT, so the corrosion benefit sits at the port thread - where wash-down spray or humid air would pit a plain brass stud. Ratings are the standard resin profile, unchanged by the stainless: 0-1.0 MPa working, 1.5 MPa proof, vacuum to -750 mmHg, -20 to +70 C. This is not a solid stainless fitting and must not be re-rated as one.
Airtac PYB Y-Type Threaded Tee Fitting PYB803-S Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB803-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 PYB803-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 PYB803-S Is Used
Bottling line rinse header branch
On a bottling rinse station the 3/8in manifold port splits into two Dia 8 tube runs; the SUS304 stud keeps the threaded joint sound where wash-down spray and humid air would corrode a plain brass thread.
Twin gripper feed on a pick-and-place robot
A single valve outlet on a pick-and-place robot branches through the Y into two Dia 8 runs to the left and right grippers, saving the separate tee a straight connector would have needed.
Glue-lid actuator pair on a carton sealer
On a carton sealer one 3/8in drop feeds the pair of small glue-lid actuators from a single branch point, with the slim Y body clearing the frame rail where a bulkier tee would foul.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB803-S the Right Part?
On the 3/8in rung of the PYB ladder this Dia 8 sits between PYB603 (Dia 6) and PYB1003 (Dia 10). Stepping down trims cost and suits lighter actuators; stepping up cuts pressure drop on longer tube runs. The same Dia 8 bore is also made on PYB801 (1/8in), PYB802 (1/4in) and PYB804 (1/2in), so choose by the port you are threading into, not just the tube. Match the tube OD exactly - a Dia 8 port will not grip 5/16in or 1/4in tube reliably.
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 PYB803-S FAQ
Working pressure is 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa and temperature -20 to +70 C. The fitting has two Dia 8mm push-in ports and a 3/8in PT male thread with a SUS304 stud. It runs on soft nylon or polyurethane tube only.
Dia 8 tube is made on PYB801 (1/8in), PYB802 (1/4in), PYB803 (3/8in) and PYB804 (1/2in), all in PT thread, so the push-in side stays Dia 8 on every one. The ladders differ outside Dia 8: the 1/8in rung supports Dia 4 to 10 while the 1/4in rung supports Dia 4 to 12.
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