
The AirTAC Airtac PC Threaded Straight Connector PC402 is a genuine male connector for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
The PC402 is an AirTAC PC series one-touch male connector, a brass push-in fitting that joins Dia 4 mm soft nylon or polyurethane tubing to a 1/4 in PT male thread. Push the tube straight home and the internal chuck grips it while the stainless spring gasket and NBR O-ring make the seal; press the POM release ring and the tube pulls straight out for rework. The threaded stud arrives with sealant already applied, so it screws onto the port without extra tape or paste.
This is the resin/brass spec profile, not the metal BPC line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg, proof pressure 1.5 MPa and a temperature window of -20 to +70 C. The plain code means the grey body; on the PC series a D suffix changes only the release button colour to black, not the brass body itself.
| Model | Airtac PC Threaded Straight Connector PC402 |
|---|---|
| Type | Male connector |
| Series | PC |
| 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.
| PC | Male connector. |
|---|---|
| 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 1/4 in manifold outlet feeding Dia 4 mm lines to small parallel grippers is exactly the ladder this connector sits on - the fine bore keeps runs tidy inside the moving head without throttling a light-grip actuator.
Benchtop analysers and sample-handling modules run small pilot cylinders off 1/4 in ports. The PC402 seals down to -750 mmHg vacuum, so it also suits suction lines that draw small vials or wafers into position.
Short kick-off and product-guide cylinders at a sorting gate typically hang off 1/4 in valve outlets. The release ring lets a technician swap a damaged 4 mm tube at changeover in seconds, without tools.
Dia 4 mm is the smallest tube bore the standard PC range takes - the 3.2 mm size belongs only to the separate PC-M mini series - so the step up from here is the PC602 at Dia 6 mm, which raises flow capacity because capacity follows the tube bore, not the fitting. On the thread side you can drop to the PC401 with a 1/8 in stud or step down to M5 with the PC4M5, which seals with a gasket instead of thread sealant; there is no PC403, because 3/8 in PC connectors begin at Dia 6 mm. Match the stud to the port you actually have - 1/4 in PT is the common outlet on solenoid valve manifolds - and remember the tube OD must match exactly: this fitting will not grip 1/4 in (6.35 mm) imperial tube or a 6 mm line.
Quick checklist
Working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, temperature range -20 to +70 C. The fitting takes Dia 4 mm soft nylon or polyurethane tube on a 1/4 in PT male thread, with a POM release button, stainless spring gasket and NBR O-ring in a brass body.
On the PC series the Dia 4 mm bore pairs only with M5, 1/8 in and 1/4 in threads; 3/8 in and 1/2 in PC connectors start at Dia 6 mm. The thread standard is PT throughout this catalogue - AirTAC publishes no G or NPT code, so fit an adapter if your port differs.
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