Airtac PYB Y-Type Threaded Tee Fitting PYB1203
The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB1203 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 PYB1203
The PYB1203 is an AirTAC PYB branch Y one-touch fitting: a 3/8 in male PT thread on one side and two Dia 12 mm tube ports on the other, arranged at a shallow Y angle instead of a sharp 90-degree tee. That angled geometry lets both branch legs leave the port in the same general direction, which is often the difference between a clean tube run and a tube that has to be bent hard against a guard or manifold wall.
Connection is push-to-connect: square-cut the tube, push it fully into the port until it bottoms, and the stainless spring gasket and chuck inside grip the OD to seal and hold. Pressing the POM release ring toward the body frees the collet so the tube can be pulled out for rework. This belongs to the resin and brass one-touch family: 0 to 1.0 MPa working pressure, -750 mmHg vacuum, 1.5 MPa proof pressure, -20 to +70 C, for soft nylon or polyurethane tube. The body is PBT with a brass stud, and the male thread arrives pre-coated with sealant so no thread tape is needed at assembly.
Airtac PYB Y-Type Threaded Tee Fitting PYB1203 Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB1203 |
|---|---|
| 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 PYB1203
| 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 PYB1203 Is Used
Twin cylinder feed from one drop
On a press or forming fixture, a single 3/8 in drop from the air manifold can split at the PYB1203 to feed two Dia 12 lines running to opposing clamp cylinders, with both branches leaving toward the same side of the fixture instead of fighting each other at a tee.
Packaging machine branch takeoff
In a cartoning or filling line, the main Dia 12 header often needs a leg peeled off to a small gripper or reject actuator. The Y branches the line without adding a separate tee and elbow, keeping the tube route around moving guarding shorter and tidier.
Splitting supply at a rotary indexer
Where a rotary indexing table rotates one side while its clamp circuit acts on the other, one 3/8 in port feeding two Dia 12 legs through this Y keeps both circuits on a single threaded connection to the fixed manifold, cutting assembly points and leak paths.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB1203 the Right Part?
Dia 12 mm is the top of the PYB ladder on a 3/8 in thread - this prefix in this thread supports Dia 6, 8, 10 and 12 only, so there is no larger step up. The nearest neighbour down is the PYB1003: same 3/8 in port, Dia 10 tube, and if your machine is sized around 10 mm tubing that is the one to order. The 12 mm bore gives the highest capacity of the group; capacity on these fittings follows the tube bore, so step down only if the downstream cylinders can accept the reduced flow. On the thread side, both PYB1202 (1/4 in) and PYB1204 (1/2 in) exist and both accept Dia 12 tube, so match the fitting to the port you actually have rather than adapting with bushings.
Tube OD must match exactly. A Dia 12 fitting will not seal or hold on 1/2 in (12.7 mm) imperial tube or on any other size - the chuck and gasket are cut for 12 mm and nothing else.
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 PYB1203 FAQ
It is a PYB branch Y one-touch fitting with two Dia 12 mm tube ports and a 3/8 in PT male thread. Working pressure 0 to 1.0 MPa (0 to 10 kgf/cm2), negative pressure down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C, for soft nylon or polyurethane tube. Body PBT with brass stud, POM release button and chuck, stainless spring gasket, NBR O-ring.
Yes, both tube ports on the PYB1203 are cut for Dia 12 mm tube - the two branches are always the same size as each other, and there is no mixed-size version in this range. The 3/8 in male thread already carries factory-applied sealant, so hand-tighten plus a modest wrench finish is enough; do not add PTFE tape on top, as doubling the sealant can push the coating into the air path.
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