Airtac PEW T-Type Side Reducing Tee Fitting PEW12-8
The AirTAC Airtac PEW T-Type Side Reducing Tee Fitting PEW12-8 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
- 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 PEW12-8
The PEW is AirTAC's different diameter union Y, a tube-to-tube fitting with no thread at all. PEW12-8 takes a Dia 12 mm run and splits it into two Dia 8 mm legs at a Y angle, so one large-bore trunk line can feed two smaller legs without an extra tee and a separate reducer. Because the bodies are moulded PBT with a brass-free construction on this family, the whole junction stays compact and light.
Push each tube home and the internal chuck grips its OD; press the POM release ring toward the body and the tube slides free. This is the standard resin one-touch profile: 0-1.0 MPa working pressure, 1.5 MPa proof pressure, -750 mmHg vacuum and -20 to +70 C. It suits soft nylon or polyurethane tube, and a stainless spring gasket plus NBR O-ring do the sealing at each port.
Airtac PEW T-Type Side Reducing Tee Fitting PEW12-8 Technical Specifications
| Model | Airtac PEW T-Type Side Reducing Tee Fitting PEW12-8 |
|---|---|
| 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 PEW12-8
| 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 PEW12-8 Is Used
CNC mist and cooling air feed
A 12 mm trunk drop on a machining centre splits into two 8 mm legs feeding mist-lubrication nozzles on the spindle and the way covers, all from one union Y.
Packaging vacuum line
On a carton-tucking conveyor, a Dia 12 suction run divides into two Dia 8 legs serving neighbouring vacuum cups, and the -750 mmHg rating keeps the joints tight under continuous vacuum.
Twin clamp cylinder feed
A pallet clamping fixture takes one 12 mm supply drop and branches it with this Y to two 8 mm cylinder feed lines, saving a tee plus a separate reducer in the fixture base.
Is the Airtac PEW T-Type Side Reducing Tee Fitting PEW12-8 the Right Part?
Sizing both ways: on the small side, PEW12-8 sits at Dia 8, so you can step that leg down to Dia 6 (PEW12-6) or up to Dia 10 (PEW12-10) - the smaller you go, the more the branch restricts flow to a low-consumption actuator, the larger the more it preserves for a hungry one. On the large side, Dia 12 is the top of the range; there is no Dia 16 step above it anywhere in this catalogue.
Tube OD must match exactly: this body will not hold 12.7 mm (1/2 inch) hose in its Dia 12 port. Where the branch must pass through a sheet-metal wall, use a PM bulkhead union instead; where it must turn at a port, the PV union elbow or a PL male elbow is the better 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 PEW T-Type Side Reducing Tee Fitting PEW12-8 FAQ
It is a Dia 12 mm by Dia 8 mm different diameter union Y with no thread. 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. It is intended for soft nylon or polyurethane tube and seals with a stainless spring gasket and NBR O-ring at each port.
No. The chuck and gasket are sized to grip a true 12 mm and 8 mm OD. A 1/2 inch hose measures 12.7 mm and a 5/16 inch tube measures 7.94 mm, so neither seats correctly and both will leak or blow off under pressure. Match the tube OD to the fitting size exactly, and if your circuit is built on inch tube, AirTAC publishes a separate N-series imperial fitting range for that.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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