Airtac PYB Y-Type Threaded Tee Fitting PYB1003-S
SUS304 stainless variant (-S)The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB1003-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 PYB1003-S
AirTAC calls this prefix the branch Y: a male-threaded tee in a Y shape that takes one supply and forks it into two equal tube legs, all from a single 3/8 in PT male port. Both legs take Dia 10 mm soft nylon or polyurethane tubing. Push the tube home and the internal chuck grips it under spring load; press the release ring and the tube frees again, so branch changes take seconds without tools.
This is the resin one-touch line: 0 to 1.0 MPa working pressure, -750 mmHg vacuum capability, 1.5 MPa proof pressure, and -20 to +70 C service. The -S suffix changes the fastening hardware, not the ratings: the threaded stud is SUS304 stainless steel for corrosion resistance in wash-down and damp plant air, while the body stays PBT and every dimension matches the standard PYB1003 exactly. The male thread arrives with sealant pre-applied, so no extra tape or dope is needed at the port.
Airtac PYB Y-Type Threaded Tee Fitting PYB1003-S Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB1003-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 PYB1003-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 PYB1003-S Is Used
Plating and pickling line branch
Fork one 3/8 in PT drop into two Dia 10 legs agitating rinse tanks in a plating shop, where the SUS304 stud resists the humid, mildly corrosive atmosphere around the bath.
Twin grippers on a packaging machine
A single manifold outlet feeding a pair of Dia 10 suction or clamp cylinders on a carton-packing conveyor, with the Y keeping both legs the same length for balanced response.
Car wash rinse nozzle feed
Splitting the supply to two spray legs in a wash-down bay, where the stainless stud survives constant water splash that would pit a plain brass thread over time.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB1003-S the Right Part?
At the 3/8 in thread position, PYB runs from Dia 6 up to Dia 12, so this SKU sits one step from the top: step down to PYB803 for lighter twin-leg circuits or up to PYB1203 when both legs feed larger actuators. If the port is only 1/4 in PT, the same Dia 10 Y exists as PYB1002. Note the interface table also allows Dia 10 on PYB at M5 and 1/4 in, but not every prefix does, so always check the row for the shape you want.
Match the tube OD exactly: this fitting grips 10 mm tube only. A 3/8 in hose measures about 9.5 mm and will slide in without sealing - the half-millimetre gap stops the chuck from biting. If one leg must feed a smaller device, add a PG reducer union on that leg rather than forcing a mismatched tube.
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 PYB1003-S FAQ
It is a resin-line branch Y with a Dia 10 mm tube bore on both legs and a 3/8 in PT male thread. Working pressure is 0 to 1.0 MPa (0 to 10 kgf/cm2), it holds -750 mmHg (10 Torr) in vacuum service, proof pressure is 1.5 MPa, and the temperature range is -20 to +70 C. The -S suffix fits a SUS304 stud; pressure, temperature and dimensions are identical to the standard PYB1003.
No. The chuck seats only on 10 mm OD tubing; 3/8 in hose at roughly 9.5 mm is loose and 8 mm tube is far too small, so neither will seal. Use PYB803 for 8 mm legs or add a PG8-10 style reducer union on the leg that changes size.
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