Airtac PEW T-Type Side Reducing Tee Fitting PEW6-4
The AirTAC Airtac PEW T-Type Side Reducing Tee Fitting PEW6-4 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
- SeriesPEW
- 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 PEW T-Type Side Reducing Tee Fitting PEW6-4
The PEW6-4 is an AirTAC different diameter union Y from the resin one-touch fitting line. It accepts a single Dia 6 mm supply tube at the stem and releases it as two Dia 4 mm branches, all in one moulded body with no thread involved. Press each tube home and the internal chuck grips it; press the release ring toward the fitting and the tube slides straight back out.
This is the resin/brass spec profile: working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa (a 50 percent margin over the working maximum), usable to -750 mmHg (10 Torr) on vacuum, and a temperature window of -20 to +70 C. It suits soft nylon or polyurethane tubing. The POM chuck and release parts run against an NBR O-ring over a stainless spring gasket. Standard body colour is grey; the D suffix changes the body itself to black on this series, which is useful when matching dark machine enclosures.
Airtac PEW T-Type Side Reducing Tee Fitting PEW6-4 Technical Specifications
| Model | Airtac PEW T-Type Side Reducing Tee Fitting PEW6-4 |
|---|---|
| Type | Different diameter tee |
| Series | PEW |
| 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 PEW T-Type Side Reducing Tee Fitting PEW6-4
| PEW | 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 PEW T-Type Side Reducing Tee Fitting PEW6-4 Is Used
Dual mini-cylinders on an SMT jig
A Dia 6 line from the valve manifold drops to two Dia 4 branches feeding paired 10 mm bore clamping cylinders on a PCB hold-down fixture, with the Y saving a separate tee and extra push-in joints.
Analyser sampling and calibration air
Benchtop gas analysers and calibration rigs often mix a Dia 6 bulk supply with Dia 4 lines to sensors and purge nozzles; the Y gives two small-bore take-offs from one trunk without brazed or barbed splices.
Carton taping head on a packaging line
On a case sealer, the Dia 6 main run along the frame splits to Dia 4 lines serving the tape-tension cylinder and the pattern blast nozzle, keeping small-bore tubing inside the moving head guard.
Is the Airtac PEW T-Type Side Reducing Tee Fitting PEW6-4 the Right Part?
PEW6-4 sits at the bottom of the different-diameter Y ladder: there is no smaller reducer Y below Dia 6 to Dia 4, so if your branch tubes are already 4 mm this is your entry part. The next step up is PEW8-6, which steps an Dia 8 trunk down to Dia 6 branches - the crossover buys roughly 60 percent more branch area per leg but needs more room behind the panel. If both sides of the joint are the same size, skip the reducer and use a plain PE union tee or PY union Y instead; AirTAC publishes no functional difference between the different-diameter tee shapes beyond the sizing, so choose by geometry alone.
One hard rule: tube OD must match exactly. A Dia 6 port will not seal on 1/4 in (6.35 mm) hose, and a Dia 4 branch will not hold 5/32 in tube. If the machine side is imperial, this fitting is not the answer.
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 PEW T-Type Side Reducing Tee Fitting PEW6-4 FAQ
It is a Dia 6 mm to Dia 4 mm different diameter union Y in the resin one-touch series. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), negative pressure is -750 mmHg (10 Torr), proof pressure is 1.5 MPa, and the temperature range is -20 to +70 C with soft nylon or polyurethane tubing.
No. The Dia 6 bore is 6.00 mm and the Dia 4 bore is 4.00 mm; the chuck is sized for the exact metric OD and will not seal or retain fractional tube. If your tubing is 1/4 in, this fitting is not suitable - match the tube OD to the code exactly on both legs.
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