Airtac PEG T-Type Concentric Reducing Tee Fitting PEG6-4D
The AirTAC Airtac PEG T-Type Concentric Reducing Tee Fitting PEG6-4D 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 PEG6-4D
The PEG6-4D is an AirTAC different diameter union tee, a tube-to-tube fitting with no thread at all. One port takes Dia 6 tubing and the reducing tee steps down to Dia 4 tubing, so a single supply trunk can feed two smaller lines with one push-in part. The D suffix means the body is moulded in black rather than the standard grey.
It uses the resin one-touch construction: push the soft nylon or polyurethane tube home and the internal chuck grips the OD, backed by a stainless spring gasket; press the release ring to free it. This resin profile is rated 0 to 1.0 MPa working pressure, -750 mmHg vacuum, 1.5 MPa proof pressure and -20 to +70 C. Because there is no threaded port, nothing here needs sealant - the fitting simply splices into the tubing run.
Airtac PEG T-Type Concentric Reducing Tee Fitting PEG6-4D Technical Specifications
| Model | Airtac PEG T-Type Concentric Reducing Tee Fitting PEG6-4D |
|---|---|
| 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 PEG6-4D
| 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 PEG6-4D Is Used
Laboratory autosampler actuation
A Dia 6 supply line from the lab-air regulator tees down to two Dia 4 feeds driving the pipette lift and probe clamp cylinders, all spliced behind a compact instrument enclosure.
Carton sealing jaw circuit
On a packaging machine, the Dia 6 trunk serving the sealing station branches through this tee into a pair of Dia 4 lines feeding the small twin cylinders that clamp the flap.
Distribution block pickup points
Mounted directly on a machine's air distribution rail, the tee turns one Dia 6 outlet into two Dia 4 pigtails for sensors, air jets or a miniature gripper.
Is the Airtac PEG T-Type Concentric Reducing Tee Fitting PEG6-4D the Right Part?
PEG6-4D is a mid-ladder reduction. If your trunk is Dia 8 and you still need Dia 4 branches, the PG8-4 straight reducer handles that run, or step the trunk down first and tee after. If no reduction is needed, the equal-bore PE6 union tee joins three Dia 6 lines instead - reducing where it is not needed only adds a choke point.
Tube size must match exactly on both diameters. The Dia 6 port will not hold 1/4 inch tube, which measures 6.35 mm OD and seats poorly in a 6 mm chuck - a slow leak that is hard to trace on a running machine. Only soft nylon and polyurethane tube should be used; rigid nylon or metal tube will not seal in the chuck.
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 PEG6-4D FAQ
It is a black resin different diameter union tee with no thread, joining Dia 6 and Dia 4 tubing. Working pressure is 0 to 1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, and temperature range -20 to +70 C. It accepts soft nylon or polyurethane tube only.
No. 1/4 inch tubing has a 6.35 mm OD, while the Dia 6 chuck is sized for exactly 6.00 mm. The grip will feel loose and the seal will weep under pressure. Match tube OD exactly on both sides, and stick to soft nylon or polyurethane - the POM chuck and stainless spring gasket cannot seal on rigid tube.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard parts are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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