
The AirTAC Airtac PZG Cross Reducing Fitting PZG12-10D is a genuine different diameter cross for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
The PZG12-10D is an AirTAC different diameter cross - a four-way tube-to-tube union that joins Dia 12 and Dia 10 soft nylon or polyurethane tubing in a single push-in body. Four legs leave the junction at 90 degrees, so one feed line can be split and turned in two planes without a nest of separate tees and elbows. Push the tube home and the stainless spring gasket and chuck grip the OD; press the POM release ring toward the body and the tube frees again for rework.
This is the 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 service range of -20 to +70 C. The D suffix makes the PBT body black as well as the release button, which suits dark machine frames where a grey part would stand out. Sealing is by NBR O-ring at each chuck, and the 12 mm bore is the largest the one-touch tube ladder offers.
| Model | Airtac PZG Cross Reducing Fitting PZG12-10D |
|---|---|
| Type | Different diameter cross |
| Series | PZG |
| 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.
| PZG | Different diameter cross. |
|---|---|
| 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. |
A Dia 12 trunk from the FRL arriving at a washer-filler conveyor splits here into Dia 10 drops feeding rail clamp and reject-blow cylinders in two directions.
Cross junction on a suction-cup array where the -750 mmHg vacuum rating lets the same push-in body serve ejector feed legs at Dia 12 and cup legs at Dia 10.
Tucked behind the clamp unit of an all-electric press, the black PBT body disappears against dark machine frames while splitting ejector and core-pull air feeds.
PZG12-10 is the top step of the different diameter cross ladder: 12 mm is the biggest tube the series takes, so there is no larger neighbour - the next combination down is PZG10-8, which gives up 2 mm of bore on both axes in exchange for a smaller body and lower-air-demand branches. If your split is all one size, the plain PZ same-diameter cross removes the step entirely; if you need a three-way rather than four-way split, look at PYW instead.
Tubing OD must match exactly on every leg. A Dia 12 port will not grip 1/2 in (12.7 mm) tube and the Dia 10 legs will not accept 3/8 in (9.5 mm), so convert the line before it reaches this fitting, not at it.
Quick checklist
It is a different diameter union cross joining Dia 12 and Dia 10 mm tube with no threaded port. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa and temperature range -20 to +70 C. Tubing is soft nylon or polyurethane, and the D suffix denotes the black body.
No. One-touch chucks are cut for a single metric OD, so the Dia 12 legs grip only 12 mm tubing and the Dia 10 legs only 10 mm; 1/2 in (12.7 mm) and 3/8 in (9.5 mm) tube will neither seal nor release correctly. Use metric tube on both axes, or step to the PZG10-8 lower in the ladder if your branches are already 8 mm.
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