Airtac PYB Y-Type Threaded Tee Fitting PYB402D
The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB402D 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 PYB402D
The PYB402D is an AirTAC PYB branch Y, a one-touch fitting that takes a single 1/4in PT male thread and splits the flow into two Dia 4 mm tube legs set at a Y angle. Push each tube into its socket until it seats and the stainless spring gasket and chuck grip the OD; press the POM release ring and the tube slides straight back out. No tools, no ferrules, no re-taping.
This is the resin and brass one-touch profile: 0 to 1.0 MPa (0 to 10 kgf/cm2) working pressure, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure and -20 to +70 C. The body is PBT on a brass stud, with an aluminium-alloy guide, NBR O-ring and POM button, and the 1/4in thread arrives with sealant already applied. The D suffix turns this version black - on PYB that means the body colour as well as the button, not just the button as on PC and POC.
Airtac PYB Y-Type Threaded Tee Fitting PYB402D Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB402D |
|---|---|
| Type | Branch Y |
| Series | PYB |
| Connection | Push-in one-touch |
| 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. 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 PYB402D
| 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. |
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 PYB402D Is Used
Benchtop analytical instrument vacuum lines
With a -750 mmHg (10 Torr) vacuum rating, this Y splits a single 1/4in port on a lab pump or manifold into two 4 mm sample or purge lines on a compact analytical bench setup.
Twin mini-gripper feed on a pick head
A single valve output on a small-parts pick-and-place head can branch through the PYB402D to feed two 4 mm lines out to a pair of compact grippers without adding a second valve port.
PCB blow-off jet pair from one solenoid
On a printed-circuit-board cleaning station, the branch Y divides one solenoid discharge into two 4 mm air jets aimed at the board, keeping the plumbing behind the panel short and black-matched to dark enclosures.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB402D the Right Part?
Dia 4 is the smallest tube size the PYB ladder offers, so there is nothing below it; the step up is Dia 6 as PYB602D, which gives a larger bore for circuits where pressure drop through the branch matters more than the slim 4 mm footprint. On the thread side, 1/4in is actually the largest port ever paired with Dia 4 tube on this series - the 3/8in and 1/2in PYB parts only start at Dia 6 and Dia 8 respectively. If you want a smaller thread with the same 4 mm tube, PYB401D in 1/8in exists. Whichever you pick, the tube OD must match exactly: a Dia 4 socket will not seal on 5/32in or 1/4in tube, only on soft nylon or polyurethane of exactly 4 mm.
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 PYB402D FAQ
It is a PYB branch Y one-touch fitting with two Dia 4 mm tube outlets on a 1/4in PT male thread, finished in black (D suffix). Working pressure is 0 to 1.0 MPa (0 to 10 kgf/cm2), vacuum capability is -750 mmHg (10 Torr), proof pressure is 1.5 MPa and the temperature range is -20 to +70 C. It accepts soft nylon or polyurethane tube of exactly 4 mm OD.
On this series it does. AirTAC states that on PC and POC straight connectors the D option changes only the release button, but on most other families - PYB included - the D suffix changes the body colour as well. So the PYB402D arrives black on both the button and the body, which matters if you are matching dark machine enclosures or panels.
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