Airtac PEG T-Type Concentric Reducing Tee Fitting PEG12-8
The AirTAC Airtac PEG T-Type Concentric Reducing Tee Fitting PEG12-8 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 PEG12-8
The PEG12-8 is an AirTAC PEG different diameter tee, a three-port tube-to-tube fitting with no threaded port at all. The straight run carries Dia 12 mm tubing through both ends, and the 90 degree branch off the side accepts Dia 8 mm tubing, letting you tap a smaller feed line off a larger trunk without a reducer plus a separate tee.
It uses the resin one-touch profile: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum down to -750 mmHg, proof pressure 1.5 MPa and a temperature window of -20 to +70 C, with soft nylon or polyurethane tubing. To make a joint you push the tube straight into the port until it bottoms out; the internal chuck grips the tube wall and the stainless spring gasket plus NBR O-ring carry the seal, and pressing the POM release ring frees the tube again. The grey PBT body is standard, and the D suffix version (PEG12-8D) is black over the whole body, not just the button.
Airtac PEG T-Type Concentric Reducing Tee Fitting PEG12-8 Technical Specifications
| Model | Airtac PEG T-Type Concentric Reducing Tee Fitting PEG12-8 |
|---|---|
| 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 PEG12-8
| 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 PEG12-8 Is Used
Packaging machine clamp feed
On a cartoning or tray-sealing machine, run Dia 12 tube as the main air trunk along the frame and use the PEG12-8 branch to feed a Dia 8 line out to a compact clamping cylinder, all with push-in joints inside tight guarding.
Pneumatic vibrator branch
On a foundry or plastics plant chute served by a 12 mm main, tap an 8 mm drop with the side port to run a rotary piston vibrator or hopper shaker that needs less flow than the trunk carries.
Truck and trailer air accessory take-off
Split a Dia 12 auxiliary line on a commercial vehicle body to feed Dia 8 tubing out to a door actuator or tipper control, where the smaller branch protects the low-flow accessory from oversized supply.
Is the Airtac PEG T-Type Concentric Reducing Tee Fitting PEG12-8 the Right Part?
Step down to PEG10-6 if your trunk is a 10 mm line feeding a 6 mm branch, or step the branch smaller on the same 12 mm trunk with a 12-to-6 version. Dia 12 is the largest tube size in this resin catalogue, so there is nothing above PEG12-8 to size up to. If you actually need the branch to come off a threaded port on a valve or manifold, a PED male run tee is the shape to look at instead, since the PEG has no thread.
Tube OD must match each port exactly: the Dia 8 branch will not grip 10 mm tube and the Dia 12 run will not hold 3/8 inch (9.5 mm) hose, so cut the tube square and confirm the OD marking before insertion.
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 PEG12-8 FAQ
It is a different diameter union tee joining Dia 12 mm tubing on the straight run to Dia 8 mm tubing on the branch, with no thread. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, vacuum rating -750 mmHg (10 Torr) and service temperature -20 to +70 C. It suits soft nylon or polyurethane tube only.
You can, and it is often the cleanest fix on a retrofit, but remember each port grips one exact OD only, so the stub in the branch must itself be genuine Dia 8 tube with its own reducer on the far end. The chuck cannot grip a reducer body, and forcing an undersized or oversized tube into the port is the most common cause of blow-off under pressure.
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Covers non-human-caused product damage.
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Standard parts are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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