Airtac PYB Y-Type Threaded Tee Fitting PYB603-S
SUS304 stainless variant (-S)The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB603-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 PYB603-S
The PYB603-S is AirTAC's branch Y one-touch fitting with a male stud: a 3/8in PT thread on one side and two Dia 6 mm tube ports angled off the stem in a Y, so a single supply port can feed two tube runs without an extra tee block. To connect, you push the soft nylon or polyurethane tube straight into the port until it bottoms; the internal chuck grips the tube wall and the stainless spring gasket plus NBR O-ring seal it. Pressing the POM release ring frees the tube again.
The -S suffix means this is the SUS304 variant, and on the PYB family that specifically means the threaded STUD is stainless steel 304 while the body remains PBT - so it suits corrosive or wash-down spots at the port interface without changing the fitting's shape. Ratings are identical to the standard resin line: 0-1.0 MPa working pressure, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure, and -20 to +70 C. The thread arrives with sealant applied; no additional sealing tape is needed on assembly.
Airtac PYB Y-Type Threaded Tee Fitting PYB603-S Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB603-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 PYB603-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 PYB603-S Is Used
Plating line air distribution
The SUS304 stud resists acid mist at the solenoid port of a plating or surface-treatment line, while the Y splits one 3/8in outlet into two Dia 6 tube runs serving rinse-air nozzles on either side of the tank.
Pick-and-place suction circuit
On a small robotic pick-and-place cell, the Y branch feeds two Dia 6 suction-cup lines from a single valve port, halving the number of outlets needed on the manifold and keeping vacuum at the cups within the -750 mmHg rating.
Brewery wash-down panel
On a brewery or dairy CIP skid, the stainless stud at the 3/8in port stands up to daily hose-down, and the Y angles two Dia 6 lines into the pneumatic actuator circuits of butterfly valves without extra junction fittings.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB603-S the Right Part?
On the PYB ladder this Dia 6 x 3/8in combination sits mid-range. One step down in thread, the PYB602 (1/4in) also accepts Dia 6 tube if your valve or manifold port is smaller. Stepping UP is where the Y series gets interesting: the 1/2in PYB size does not accept Dia 6 at all - it starts at Dia 8 - so moving to a 1/2in port means jumping to PYB804 and tubing up as well. Match the thread to the port first, then confirm the tube: a Dia 6 port will not reliably hold 1/4in (6.35 mm) tube, even though the sizes look close.
If the two branches need to point at 90 degrees instead of a Y angle, the PEB branch tee (PEB603-S in this size) is the alternative shape. If you need to pass the connection through a panel or guard plate rather than branch off it, look at the PM bulkhead family 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 PYB603-S FAQ
It is a branch Y one-touch fitting with a 3/8in PT male stud and two Dia 6 mm tube ports, in the SUS304 -S variant. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), vacuum capability is -750 mmHg (10 Torr), proof pressure is 1.5 MPa, and the operating temperature range is -20 to +70 C. It is intended for soft nylon or polyurethane tubing only, and the thread is PT.
No. On the PYB family the -S means the threaded stud is SUS304 while the body stays PBT, so the external dimensions and every pressure and temperature figure match the standard PYB603. AirTAC publishes no separate rating for the stainless variant, so you can size the circuit exactly as you would the grey version.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard parts are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC One-Touch Fittings
Request a Quote for Airtac PYB Y-Type Threaded Tee Fitting PYB603-S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.