
The AirTAC Airtac PCF Female Thread Straight Fitting PCF803 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 AirTAC PCF803 is a one-touch female connector from the PC family: an internal 3/8" PT thread on one side and a Dia 8 mm push-in socket on the other. Because the thread is female, it screws onto an existing male stud or nipple instead of adding one, which is useful when a machine port already carries the male thread you need.
Connection takes a second: push the 8 mm soft nylon or polyurethane tube straight into the chuck and it grips for a seal; press the POM release ring and the tube slides free. This resin and brass profile is rated 0-1.0 MPa working pressure, 1.5 MPa proof, and -20 to +70 C, with an NBR O-ring and stainless spring gasket doing the sealing. The thread ships pre-coated with sealant, so no tape or dope is needed at install.
| Model | Airtac PCF Female Thread Straight Fitting PCF803 |
|---|---|
| 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. |
A 3/8" female outlet on a solenoid valve manifold accepts the PCF803 directly, sending Dia 8 nylon line to a downstream actuator without adding a male adapter.
Mould cooling and ejection circuits on injection machines often carry male threaded take-off points; the female 3/8" thread connects cleanly and the push-in end feeds 8 mm PU hose to clamps.
Along a bottling conveyor, compressed-air drop legs terminated in male threads take the PCF803 to hand off Dia 8 tubing to grippers and reject-blow-off nozzles.
On the 3/8" female ladder, Dia 8 sits between Dia 6 below and Dia 10 above. Stepping to Dia 6 buys nothing on a 3/8" port - the bore is the bottleneck - while Dia 10 raises flow capacity through a bigger tube bore if your circuit can take it. On the tube side, the same Dia 8 socket is also offered in 1/4" (PCF802) and 1/2" (PCF804) female threads, so match the port, not the tube.
If the fitting must pass through a panel, use a PMF bulkhead female connector instead; if the tube has to turn 90 degrees at the port, the PLF female elbow is the shape for the job. And always match tube OD exactly: a Dia 8 PCF will not seal on 5/16" (8 mm nominal) tube with wall variations outside its grip range, and it will never hold 1/4" tube.
Quick checklist
It is a one-touch female connector with a Dia 8 mm tube socket and a 3/8" PT internal thread. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), and proof pressure 1.5 MPa. Operating temperature is -20 to +70 C. Tubing must be soft nylon or polyurethane in Dia 8 OD exactly.
No. AirTAC ships threaded one-touch parts with sealant already applied to the thread, so the 3/8" PT female end can be screwed straight onto a male port. On M5 sizes a sealing gasket is used instead of sealant, but that does not apply at 3/8".
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