Airtac PYB Y-Type Threaded Tee Fitting PYB803D
The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB803D 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 PYB803D
The PYB803D is an AirTAC PYB branch Y, a one-touch fitting that divides a single 3/8in PT male thread into two Dia 8 tube legs set at a Y angle. Push each tube home and the internal chuck grips its OD to seal; press the release ring and the tube slides straight back out. Because the split happens at the fitting, one valve port or drop leg can feed two circuits without a separate tee and extra nipple.
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 with soft nylon or polyurethane tubing. The D suffix on the PYB range changes the body colour to black, unlike on the PC and POC straights where it alters only the release button, so the whole fitting reads black on the machine.
Airtac PYB Y-Type Threaded Tee Fitting PYB803D Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB803D |
|---|---|
| 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 PYB803D
| 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 PYB803D Is Used
Twin blow-off on a bottling line
One 3/8in drop leg feeding two Dia 8 blow-off nozzles that clear labels or droplets from bottles ahead of the filler, split at the Y instead of a tee and nipple stack.
Control panel branch to two actuators
A single solenoid valve output in a machine control cabinet split into two Dia 8 runs serving a clamp and an ejector cylinder, keeping the plumbing to one port.
Dual suction cups on a pick head
An end-of-arm pick head where one valve port feeds two Dia 8 suction cup lines through the Y, so both cups release together with the same valve.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB803D the Right Part?
Step down to PYB603 for a Dia 6 branch feeding lighter loads such as small air jets or indicator cylinders, or up to PYB1003 when the two legs carry Dia 10 lines to bigger actuators; the bore either side of Dia 8 is what changes the air you can move per leg. On the thread side, the same Dia 8 Y is also made as PYB802 for a 1/4in port and PYB804 for a 1/2in port, so match the port first and the tube second. Both Y legs take Dia 8 only - tubing OD must match exactly, and a 1/4in (6.35 mm) tube will not seat in a Dia 8 chuck.
If the two legs need different diameters, this is the wrong part: the PYW different-diameter union Y handles a step between tube sizes without a thread. For hiding the branch inside a panel, a PM bulkhead union with two Ys is the tidier build.
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 PYB803D FAQ
Working pressure is 0 to 1.0 MPa (0 to 10 kgf/cm2), vacuum down to -750 mmHg (10 Torr), and proof pressure 1.5 MPa. Temperature range is -20 to +70 C. The fitting joins Dia 8 OD tubing on both Y legs to a 3/8in PT male thread, and suits soft nylon or polyurethane tube. These are the standard resin and brass one-touch figures; the D suffix changes colour only, never the rating.
The PYB803D divides one supply into two equal Dia 8 branches; its chucks are sized for Dia 8 and nothing else. If the downstream circuits run smaller tube, fit Dia 8 reducers or use the PYW different-diameter union Y, which steps between two tube sizes at the branch point. Do not try to force a 6 mm or 1/4in tube into a Dia 8 chuck - it will not seal. The 3/8in thread arrives with sealant already applied, so it threads straight into a PT port.
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