Airtac PEG T-Type Concentric Reducing Tee Fitting PEG10-8D
The AirTAC Airtac PEG T-Type Concentric Reducing Tee Fitting PEG10-8D 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 PEG10-8D
The PEG10-8D is an AirTAC different diameter union tee, a three-way tube-to-tube fitting with no thread at all. The two collinear run ports accept Dia 10 mm soft nylon or polyurethane tubing and the side branch accepts Dia 8 mm, letting one supply line feed a smaller actuator circuit without an extra adapter. Connection is the standard one-touch action: push each tube fully home and the internal chuck grips its own port's OD; press the release ring to free it again.
This part belongs to the resin and brass one-touch profile, not the metal BPC line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and a service temperature of -20 to +70 C. The trailing D orders the version in black. Unlike the PC and POC connectors, where the D suffix changes only the release button, on the PEG family it changes the body colour, so the whole tee reads black on the machine.
Airtac PEG T-Type Concentric Reducing Tee Fitting PEG10-8D Technical Specifications
| Model | Airtac PEG T-Type Concentric Reducing Tee Fitting PEG10-8D |
|---|---|
| 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 PEG10-8D
| 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 PEG10-8D Is Used
Packaging machine feeder drop
On a carton-wrapping line, a 10 mm trunk line runs along the frame while the individual gripper cylinders draw only what an 8 mm branch supplies. This tee makes that step-down in a single push-fit joint, with no threaded adapter to leak or loosen under vibration.
Vacuum sheet-handling circuit
A pick-and-place head lifting carton blanks or plastic sheets runs on vacuum as well as blow-off air. The fitting is rated to -750 mmHg (10 Torr), so the same Dia 10 to Dia 8 branch can serve the suction cups without a separate vacuum-rated hardware set.
Dark-chassis pneumatic manifold
In semiconductor and electronics equipment built around black anodised frames, grey fittings visually break up an otherwise dark plumbing run. Ordering the D version gives a black body and chuck assembly that blends into the manifold panel instead of standing out.
Is the Airtac PEG T-Type Concentric Reducing Tee Fitting PEG10-8D the Right Part?
Size both ports before ordering, because the code reads run-then-branch: PEG10-8D is Dia 10 in line with a Dia 8 tee-off, and the reverse is a different part. If all three legs were the same diameter you would step to the plain PE union tee instead, PE10 for a 10 mm circuit or PE8 for 8 mm, and if you need a straight reduction rather than a branch the PG different diameter straight line (for example PG8-4) is the sibling shape. The union tee ladder runs from Dia 4 up to Dia 12, so this sits one step below the largest tube in the family.
Tube OD must match each port exactly. The Dia 8 branch port will not seal 1/4 in (6.35 mm) hose even though the difference looks trivial on a ruler, and stretching an undersized tube over the chuck destroys the grip. Match the port with a genuine Dia 8 soft nylon or PU tube and the joint holds both pressure and vacuum.
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 PEG10-8D FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and a temperature range of -20 to +70 C. The fitting is a three-port union tee with two Dia 10 mm run ports and one Dia 8 mm branch port, in the black D-colour version, for soft nylon or polyurethane tubing. It carries no thread: both sides connect tube to tube.
No. Each port grips only the tubing OD it was built for, so the Dia 10 run ports take 10 mm tube and the Dia 8 branch takes 8 mm tube. If your circuit uses one diameter throughout, order the same-size PE union tee in that diameter instead; the PEG range exists precisely to change between two sizes at a branch.
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