Airtac PCF Female Thread Straight Fitting PCF401
The AirTAC Airtac PCF Female Thread Straight Fitting PCF401 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.
- TypeFemale connector
- SeriesPCF
- 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 PCF Female Thread Straight Fitting PCF401
The PCF401 is an AirTAC PCF female connector from the resin-body one-touch range: it terminates a Dia 4 mm soft nylon or polyurethane tube onto a 1/8in female PT thread. Because the thread is internal, the fitting screws over a male stud or a machine port and the sealing happens inside the nut, so it is the natural pick where the port on the equipment is male rather than tapped female. Push the tube fully home and the stainless spring gasket and chuck grip the OD; press the POM release ring to free it again.
This SKU sits on the resin/brass spec 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 temperature window of -20 to +70 C. The 1/8in thread arrives with sealant applied (only M5 sizes use a sealing gasket instead), and the grey POM body over a brass internal assembly is the standard configuration.
Airtac PCF Female Thread Straight Fitting PCF401 Technical Specifications
| Model | Airtac PCF Female Thread Straight Fitting PCF401 |
|---|---|
| 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.
Model Code: Airtac PCF Female Thread Straight Fitting PCF401
| 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. |
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 PCF Female Thread Straight Fitting PCF401 Is Used
Valve manifold pilot ports
Screws over the male 1/8in pilot port of a directional valve manifold to run a Dia 4 signal line back to a pressure switch, with no stacked adapter nipples in the circuit.
Bench-top lab apparatus
Feeds a 4 mm air line on a small laboratory dispensing or purging rig where the frame studs are male and an internal-thread fitting keeps the assembly flush and compact.
Air-blast nozzles on bottling lines
Connects a Dia 4 tube to the male inlet of an air-jet nozzle used to blow moisture or dust off containers ahead of a labelling head, using only a small signal-grade bore.
Is the Airtac PCF Female Thread Straight Fitting PCF401 the Right Part?
Dia 4 is the smallest tube the PCF ladder offers, so there is no step down - PCF401 is the entry point. Step up to PCF601 (Dia 6 tube) when the line feeds anything beyond a small pilot or signal duty; the larger bore is what moves more air, since AirTAC publishes flow for these parts as a curve rather than a figure. On the thread side, 1/8in (code 01) is the smallest taper option after M5, and the next rung is 1/4in in the PCF402. Whatever you choose, the tube OD must match exactly: a Dia 4 chuck will not seal on 1/4in (6.35 mm) tube, which is a common imperial-to-metric mix-up.
If you actually need to pass the fitting through a panel wall, a PCF female connector is the wrong shape - look at the PMF bulkhead female connector instead, which locks through the plate with a locknut sized to the tube OD (M12x1 at Dia 4).
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 PCF Female Thread Straight Fitting PCF401 FAQ
It is a PCF female one-touch connector for Dia 4 mm tube with a 1/8in female PT thread. Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C, for soft nylon or polyurethane tubing.
The code runs prefix, tube, thread, colour: PCF401 is PCF female connector, tube Dia 4, thread code 01 meaning 1/8in PT, and no suffix meaning the grey body. The next thread step would be 02 for 1/4in (PCF402), and D as a final character would indicate black. Decoding the code first is the fastest way to avoid ordering a fitting that does not match the port.
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