Airtac PG Reducing Union PG12-10
The AirTAC Airtac PG Reducing Union PG12-10 is a genuine different diameter straight for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeDifferent diameter straight
- SeriesPG
- 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 PG Reducing Union PG12-10
The PG12-10 is an AirTAC PG different diameter straight union: a tube-to-tube reducer with no thread at all, stepping a Dia 12 mm line down to a Dia 10 mm line in a single in-line body. Push each tube into its end and the internal chuck grips the OD to seal it; press the release ring and the tube frees again for rework. Because both connections are one-touch, a size change on a machine can be made without cutting, gluing or re-threading anything.
This union belongs to the resin one-touch profile, not the metal BP line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa, temperature -20 to +70 C, for soft nylon or polyurethane tubing. The chuck and release button are POM over an aluminium-alloy guide with a stainless spring gasket and NBR O-ring. Standard colour is grey; a D suffix orders the black body version.
Airtac PG Reducing Union PG12-10 Technical Specifications
| Model | Airtac PG Reducing Union PG12-10 |
|---|---|
| Type | Different diameter straight |
| Series | PG |
| 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 PG Reducing Union PG12-10
| PG | Different diameter straight. |
|---|---|
| 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 PG Reducing Union PG12-10 Is Used
Cartoner vacuum drop-down
On a packaging cartoner, the Dia 12 vacuum trunk from the generator can be reduced in one fitting to the Dia 10 leg feeding the box-pick cups, holding the -750 mmHg vacuum the resin PG line is rated for.
Manifold branch to clamp cylinder
Where a Dia 12 supply rail on a pneumatic press branch needs to shrink to Dia 10 tubing at the clamp cylinder, this straight union does the step without adding an elbow and its extra pressure drop.
Conveyor air-knife feed
A Dia 12 header on a bottle-conveyor air-knife system can drop to Dia 10 drop legs at each nozzle station, with the push-in ends letting a leg be repositioned during changeover.
Is the Airtac PG Reducing Union PG12-10 the Right Part?
Step down one rung to the PG10-8 if the bigger leg of your reducer should be Dia 10 and the smaller Dia 8. There is no larger PG union to step up to: Dia 12 is the biggest tube OD in this catalogue, so PG12-10 is the top of the reducing ladder. If your line is a uniform Dia 12 throughout, use the plain PU straight union instead of a reducer.
Match each end to the tube exactly. The Dia 12 bore will not hold 12 mm rigid pipe or 12.7 mm (1/2 in) hose, and the Dia 10 end rejects 3/8 in hose as well; only soft nylon or PU of the printed OD seals on the chuck. Remember that flow through this reducer is governed by the Dia 10 leg, so size the downstream circuit for that bore, not the larger one.
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 PG Reducing Union PG12-10 FAQ
It is a Dia 12 mm to Dia 10 mm different diameter straight union with no thread. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, vacuum capability -750 mmHg (10 Torr), and temperature range -20 to +70 C. It is for soft nylon or polyurethane tubing only, in the standard grey body.
No. The Dia 12 end grips only soft nylon or PU tube with a true 12 mm OD; 12.7 mm (1/2 in) hose will neither seal nor lock on the chuck. If your circuit runs in inch hose, stay within a one-touch range designed for that tube instead of forcing a metric reducer to match.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
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