Airtac PYB Y-Type Threaded Tee Fitting PYB1204D-S
SUS304 stainless variant (-S)The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB1204D-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 PYB1204D-S
The PYB1204D-S is an AirTAC PYB branch Y one-touch fitting in the black D finish, sized for Dia 12 mm soft nylon or polyurethane tubing with a 1/2 in PT male thread. Where a tee puts both branches at 90 degrees, this Y splits the flow at an included angle, so each tube leg leaves the body with less sharp bending than a hard right-angle branch. To connect, push the tube fully home: the chuck grips the tube wall and the stainless spring gasket seals on the OD, and pressing the release ring lets the tube back out.
This is the resin one-touch profile, not the metal BP line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and a service range of -20 to +70 C. The -S suffix swaps the usual brass stud for SUS304, so the threaded joint suits humid or wash-prone air circuits, while the PBT body, POM release button and NBR O-ring keep every published rating identical to the standard part.
Airtac PYB Y-Type Threaded Tee Fitting PYB1204D-S Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB1204D-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 PYB1204D-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 PYB1204D-S Is Used
Packaging machine twin-cylinder feed
Tap one 1/2 in PT manifold port on a carton-sealing machine and branch it to two Dia 12 lines serving the clamp and pusher cylinders, replacing a tee plus nipple with a single push-fit body.
PCB plating rinse station
The SUS304 stud holds up where humid, chemically-laden air quickly dulls plain brass threads, keeping the branch joint sound on rinse and drying stations fed from a central Dia 12 line.
Textile stenter edge gripper supply
Branch the outlet of a 1/2 in PT solenoid valve on a stenter frame into two Dia 12 legs feeding the fabric-edge grippers on both sides, with the Y angle easing the tube routing.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB1204D-S the Right Part?
PYB1204D-S sits at the top of the 1/2 in PYB ladder: Dia 12 is the largest tube this thread accepts, so there is nothing above it - if your actuator is underserved, the fix is a shorter or larger-bore run elsewhere, not a bigger PYB. The step down is Dia 10 (PYB1004D-S), which drops the bore area the branch must feed and suits lighter-acting grippers. On the thread side, the neighbour below is 3/8 in (PYB1203D-S); both 3/8 and 1/2 in take Dia 12 tube, so match the thread to the drilled port, not to the tubing.
Tube OD must match exactly: a Dia 12 fitting will not seal on 12.7 mm (1/2 in) imperial hose or on Dia 10 tube. If you need a straight pass-through, a 90-degree drop or a reduction, the PU, PL or PKG shapes are the right answers instead of this Y.
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 PYB1204D-S FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. The fitting takes Dia 12 mm soft nylon or polyurethane tube on a 1/2 in PT male thread. The stud is SUS304; the body is PBT with a POM release button and NBR O-ring. Tubing outside Dia 12 - including 12.7 mm imperial hose - will not clamp.
No. The SUS304 stud replaces the brass stud for corrosion resistance, but every published figure stays the same as the standard PYB: 0-1.0 MPa working, 1.5 MPa proof, -20 to +70 C. AirTAC also publishes no separate stainless dimension table, so the PYB1204D-S occupies the same envelope as the grey standard part. Note too that on this series the D suffix colours the body as well as the button, unlike the PC connectors where only the button changes.
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