Airtac PYB Y-Type Threaded Tee Fitting PYB1003D-S
SUS304 stainless variant (-S)The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB1003D-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 PYB1003D-S
The PYB1003D-S is an AirTAC PYB branch Y, a one-touch fitting that divides the flow from a single 3/8in PT male port into two Dia 10 mm tube legs set at a Y angle. Push each tube into its chuck until it bottoms and the stainless spring gasket plus NBR O-ring lock it against the port; press the POM release ring to free it again.
This is the resin one-touch profile, not the metal BP line: 0 to 1.0 MPa working pressure, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure, -20 to +70 C. The -S suffix fits a SUS304 stud in place of the standard brass one while the body stays PBT, and the D suffix makes the whole body black, not just the button. Ratings and dimensions are identical to the grey brass-stud version, so it simply drops into the same hole.
Airtac PYB Y-Type Threaded Tee Fitting PYB1003D-S Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB1003D-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 PYB1003D-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 PYB1003D-S Is Used
Carton sealer vacuum branch
On a packaging machine, split the 3/8in supply at the frame to feed a vacuum generator on one 10mm leg and its blow-off nozzle on the other, keeping the two runs balanced.
Twin air jets on a weaving loom
A loom's weft insertion needs two matched jets from one drop line; the Y shape feeds both 10mm jet tubes off a single 3/8in port without an extra tee body.
Plating line rinse station
Where splash and rinse water attack brass fastenings around the pneumatic manifold, the SUS304 stud holds up while the PBT body stays inert to the mist.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB1003D-S the Right Part?
On the PYB ladder this Dia 10 / 3/8in SKU sits between the PYB803 (Dia 8) below and the PYB1203 (Dia 12) above. Stepping to Dia 8 raises air velocity for shorter actuator runs; Dia 12 cuts pressure drop on longer feeds. On the thread side, the PYB1002 (1/4in) and PYB1004 (1/2in) both exist for this tube size, so match the stud to the port rather than adapting with bushings. If the two legs need different bores, a PYW different diameter union Y is the purpose-built part.
The tube seat is cut for exactly 10 mm outside diameter soft nylon or polyurethane. A 10 mm one-touch chuck will not reliably grip 3/8in (9.5 mm) hose, and the Y angle also reduces side load on the studs compared with a tee, which matters on vibrating machines.
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 PYB1003D-S FAQ
Working pressure 0 to 1.0 MPa (0 to 10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. It accepts Dia 10 mm soft nylon or polyurethane tube on both Y legs and has a 3/8in PT male thread. The stud is SUS304 and the body is PBT in black (D suffix); AirTAC ships threaded studs with sealant already applied, so no additional tape is normally needed.
No. The 3/8in refers to the PT thread only; the tube seat is machined for exactly 10 mm outside diameter tubing. A 3/8in hose (about 9.5 mm OD) will slide in but the chuck cannot grip it safely under pressure - stay with true 10 mm tube. The -S suffix also changes only the stud material to SUS304; pressure, temperature and dimensions match the standard PYB1003 exactly.
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