Airtac PG Reducing Union PG10-8D
The AirTAC Airtac PG Reducing Union PG10-8D 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 PG10-8D
The PG10-8D is an AirTAC PG different diameter straight union, a one-touch reducer that joins Dia 10 mm soft nylon or polyurethane tube on one side to Dia 8 mm tube on the other, in a single inline body. Push the tube home and the internal chuck grips its wall; press the POM release ring and the tube frees again, so a branch can be re-routed without cutting hose.
This belongs to AirTAC's resin one-touch profile, not the metal line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa and a temperature range of -20 to +70 C. The D suffix on PG changes the whole body to black, not just the button as on PC and POC, which is worth knowing when you are matching visible pipework on a machine front.
Airtac PG Reducing Union PG10-8D Technical Specifications
| Model | Airtac PG Reducing Union PG10-8D |
|---|---|
| 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 PG10-8D
| 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 PG10-8D Is Used
Pick-and-place gripper feed
A 10 mm supply line from the valve manifold steps down to an 8 mm drop feeding a pneumatic gripper on a pick-and-place unit, all in one straight joint without an adapter stack.
Packaging carousel trunk-to-branch
On a rotary packaging carousel, 10 mm air trunking around the frame reduces to 8 mm branches at each sealing head, and the black body keeps the pipework visually consistent on exposed frames.
Conveyor blow-off step-down
A 10 mm line from the filter-regulator drops to 8 mm at the blow-off nozzle array along a conveyor, where the smaller bore suits the nozzle port and shortens the fitting stack.
Is the Airtac PG Reducing Union PG10-8D the Right Part?
Sizing runs in single-millimetre steps on this reducer ladder. One step down is PG8-6, which steps Dia 8 tube to Dia 6 where you are feeding smaller actuators; one step up is PG12-8, which takes a Dia 12 trunk down to the same Dia 8 branch. Staying at 10 to 8 is the middle choice when a 10 mm distribution line drops to the 8 mm size most mid-size cylinders and valves use.
Tube OD must match the chuck exactly. The Dia 10 end will not hold 3/8 inch tube (9.5 mm OD) even though it is close, and the Dia 8 end will not take 1/4 inch tube. If you also need a branch or an angle at the step, the PEG or PEW different diameter tee and the PV union elbow are the shapes to look at instead of a straight union.
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 PG10-8D FAQ
The PG10-8D is a different diameter straight union joining Dia 10 mm tube to Dia 8 mm tube, with no threaded port. It carries the resin one-touch ratings: working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa and operating temperature -20 to +70 C, for soft nylon or polyurethane tube.
No. A one-touch chuck is machined for one exact tube OD, so the Dia 10 side accepts only 10 mm OD tube and the Dia 8 side only 8 mm OD tube. A 9.5 mm (3/8 inch) tube will not seal reliably; pick the correct size from the PG ladder rather than forcing a near 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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