
The AirTAC Airtac PCF Female Thread Straight Fitting PCF402 is a genuine female connector for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
The PCF402 is an AirTAC PCF female one-touch connector: a straight fitting whose 1/4in PT female thread screws straight onto a male stud or into a tapped port, while the other end accepts Dia 4 mm soft nylon or polyurethane tube. Press the tube home and the stainless spring gasket and chuck grip it for a pressure-tight seal; press the POM release ring and the tube slides straight back out.
This is the resin/brass one-touch profile, not the metal BPC line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa and a working temperature of -20 to +70 C. The 1/4in thread arrives with sealant already applied on the thread, so it can be fitted as delivered. Standard finish is grey; the D suffix version changes the body colour to black.
| Model | Airtac PCF Female Thread Straight Fitting PCF402 |
|---|---|
| Type | Female connector |
| Series | PCF |
| 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.
| PCF | Female 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. |
The 1/4in PT female thread bolts flat onto a tapped port on the manifold face, so the fitting does not protrude past the plate edge when the 4 mm line runs out to a small gripper cylinder.
Small-bore Dia 4 mm polyurethane tube feeds reagent or purge air to a sample block; the release ring lets a technician swap tubing during changeover without tools or thread sealant.
A fixture builder taps 1/4in PT holes in the fixture base plate and fits PCF402 at each drop point, then runs 4 mm nylon tubing to air-blow-off nozzles and pilot lines.
Dia 4 mm is the smallest tube this series takes, so the only step up is PCF602 at Dia 6 mm, which buys a stiffer bore and more effective flow area for the same thread. On the thread side, the Dia 4 tube is also offered as PCF401 with a 1/8in port; a 3/8in female connector in this series only exists from Dia 6 upward, so do not plan a PCF403.
A female connector is the right answer when the port itself is a tapped hole: the fitting sits flush against the mounting face instead of a male stud standing proud of it, which keeps stack height down inside covers and on crowded manifold plates. Whatever you choose, the tube OD must match exactly - a Dia 4 chuck will not seal on 1/4in (6.35 mm) tube.
Quick checklist
Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. This SKU is the Dia 4 mm tube size with a 1/4in PT female thread, from the resin/brass one-touch family, applicable to soft nylon or polyurethane tubing. Thread standard is PT throughout this catalogue.
No. AirTAC ships threaded one-touch fittings with sealant pre-applied to the thread, so the 1/4in PT female thread can be screwed into a tapped port as delivered. Only the M5 sizes in this range use a sealing gasket instead. Hand-tighten plus a modest turn is normally enough; remember the fitting only accepts genuine Dia 4 mm OD soft nylon or PU tube, not 1/4in ID hose.
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