Airtac PEG T-Type Concentric Reducing Tee Fitting PEG12-10D
The AirTAC Airtac PEG T-Type Concentric Reducing Tee Fitting PEG12-10D is a genuine different diameter tee for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeDifferent diameter tee
- SeriesPEG
- 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 PEG T-Type Concentric Reducing Tee Fitting PEG12-10D
The PEG12-10D is an AirTAC PEG different diameter tee in the resin one-touch family, finished in black (the D suffix colours the whole body on this series, not just the button as on PC and POC). It lets one Dia 12 mm main line branch into a Dia 10 mm leg without adapters or threaded intermediates, so a reducing run that would otherwise need a straight tee plus two reducing unions becomes a single push-in part.
Connection is the standard one-touch action: push the tube firmly into the chuck until it bottoms out and the stainless spring gasket and NBR O-ring seal around the OD; press the release ring to free it. This resin profile is rated 0-1.0 MPa working pressure, -750 mmHg vacuum, 1.5 MPa proof, and -20 to +70 C, and takes soft nylon or polyurethane tubing only. It is a tube-to-tube part, so there is no threaded port anywhere on the body.
Airtac PEG T-Type Concentric Reducing Tee Fitting PEG12-10D Technical Specifications
| Model | Airtac PEG T-Type Concentric Reducing Tee Fitting PEG12-10D |
|---|---|
| Type | Different diameter tee |
| Series | PEG |
| 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 PEG T-Type Concentric Reducing Tee Fitting PEG12-10D
| PEG | Different diameter tee. |
|---|---|
| 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 PEG T-Type Concentric Reducing Tee Fitting PEG12-10D Is Used
Manifold drop to cylinder supply
Branch a 12 mm feed coming off a valve manifold down to a 10 mm line supplying a mid-size pneumatic cylinder on a packaging machine, all push-in with no threaded adapter stage.
Colour-coded conveyor air drops
The all-black body suits dark anodised or painted conveyor frames where grey fittings stand out; tee off a 12 mm header to a 10 mm drop feeding blow-off or gate-actuation points.
Control cabinet pneumatic sub-branch
Inside a machine enclosure, split a 12 mm distribution line so a 10 mm branch can reach a secondary valve station or air spring without cutting into the main run.
Is the Airtac PEG T-Type Concentric Reducing Tee Fitting PEG12-10D the Right Part?
On the Dia 12 leg this is the top of the ladder, so there is no larger branch to step to; the next part down is PEG12-8, which branches the same 12 mm main into a Dia 8 leg when the drop feeds a smaller actuator. If both legs of your tee are actually Dia 12, you do not need a reducer at all - the plain PE12 union tee is the correct part and costs less.
One sizing trap worth checking before ordering: Dia 12 is 12 mm OD, not 1/2 inch tubing, which measures 12.7 mm OD and will not seat in the chuck. Match the tube OD exactly, and keep the branch line's flow expectations tied to the 10 mm bore rather than the 12 mm main - the smaller leg is the bottleneck on any tee of this shape.
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 PEG T-Type Concentric Reducing Tee Fitting PEG12-10D FAQ
It is a resin one-touch different diameter tee joining Dia 12 mm main tube to a Dia 10 mm branch, with no threaded port. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and the temperature range is -20 to +70 C. It accepts soft nylon or polyurethane tubing, and the D suffix means the body is black.
No. Dia 12 in the AirTAC code means a 12.0 mm tube OD, while 1/2 inch tubing measures 12.7 mm OD. That 0.7 mm difference is enough that the chuck cannot grip and the O-ring will not seal, so the joint will leak or blow off under pressure. Use true 12 mm OD nylon or polyurethane tube, and if your circuit is genuinely built on inch tube, this metric series is not the right family.
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