Airtac PG Reducing Union PG12-10D
The AirTAC Airtac PG Reducing Union PG12-10D 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 PG12-10D
The PG12-10D is an AirTAC PG series different diameter straight union: a tube-to-tube one-touch fitting with no thread at all, joining Dia 12 tubing on one end to Dia 10 tubing on the other. Push each tube home and the internal chuck grips its OD; press the release ring at that end to free it again. Both ends are separate circuits in one body, so each tube must match its own end exactly.
This is the resin profile, not the metal BP line: 0 to 1.0 MPa (0 to 10 kgf/cm2) working pressure, vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and -20 to +70 C with soft nylon or polyurethane tubing. The D suffix makes the whole body black on PG fittings, which helps on dark machine frames where the standard grey stands out.
Airtac PG Reducing Union PG12-10D Technical Specifications
| Model | Airtac PG Reducing Union PG12-10D |
|---|---|
| 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 PG12-10D
| 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 PG12-10D Is Used
Press cylinder drop
Stepping a Dia 12 main air drop down to a Dia 10 feed line running to a pneumatic press or clamping cylinder, where the smaller bore matches the cylinder port.
Packaging machine retrofit
Joining a new Dia 12 distribution run back into the original Dia 10 circuit of a cartoning or wrapping machine without replacing the downstream tubing.
Dark panel builds
The black body suits injection moulding machines and robot cells with dark cabinets and frames, where grey fittings are visually lost during maintenance checks.
Is the Airtac PG Reducing Union PG12-10D the Right Part?
Down one step is PG10-8, which reduces a Dia 10 line to Dia 8; PG12-10D is the largest reduction in the ladder because Dia 12 is the biggest tube this catalogue covers, so no larger pair exists. The step you choose sets your bottleneck: with 12 reducing to 10, the carrying capacity of the run is governed by the 10mm bore downstream, so size the smaller tube for the actuator's demand rather than the main.
Use this straight union when the two runs are collinear, for example stepping a Dia 12 distribution drop down to a Dia 10 branch. If the line has to turn, the PV union elbow or a threaded reducer such as PKD is the better shape. Reminder: a Dia 12 chuck will not hold 10mm tube and a Dia 10 chuck will not hold 12mm, so the sizes cannot be swapped between ends.
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 PG12-10D FAQ
It is a different diameter straight union in the resin one-touch PG series, joining Dia 12 tube to Dia 10 tube with no thread. Working pressure 0 to 1.0 MPa (0 to 10 kgf/cm2), negative pressure to -750 mmHg (10 Torr), proof pressure 1.5 MPa, temperature -20 to +70 C, for soft nylon or polyurethane tubing only. The D suffix gives a black body.
On PG fittings the D suffix changes the body colour to black while pressure, temperature and dimensions stay identical to the grey version. On the PC and POC straight connectors the D only changes the release button, so the black body on this union is actually a more visible difference than on those series.
Authorized Export Seller
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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