Airtac PLF L-Shaped Female Thread Adapter PLF401
The AirTAC Airtac PLF L-Shaped Female Thread Adapter PLF401 is a genuine female elbow for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeFemale elbow
- SeriesPLF
- 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 PLF L-Shaped Female Thread Adapter PLF401
The PLF401 is an AirTAC PLF series female elbow, a one-touch fitting that joins Dia 4 mm soft nylon or polyurethane tubing to a 1/8 in PT female port at a 90 degree angle. Push the tube home and the internal chuck grips it against the stainless spring gasket for a hold under both pressure and vacuum; press the POM release ring and the tube slides straight back out for rework.
It runs on the resin fitting profile: 0 to 1.0 MPa working pressure, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure and -20 to +70 C. The body is PBT with a brass stud section, and the female thread arrives from AirTAC with sealant already applied, so the joint is ready to make up on the port without extra tape or compound.
Airtac PLF L-Shaped Female Thread Adapter PLF401 Technical Specifications
| Model | Airtac PLF L-Shaped Female Thread Adapter PLF401 |
|---|---|
| Type | Female elbow |
| Series | PLF |
| 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 PLF L-Shaped Female Thread Adapter PLF401
| PLF | Female elbow. |
|---|---|
| 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 PLF L-Shaped Female Thread Adapter PLF401 Is Used
Compact pick-and-place gripper supply
On a small gripper head, the 1/8 in female port on a compact valve sits at an awkward angle; the PLF elbow turns a 4 mm polyurethane drop line through 90 degrees so the tube leaves parallel to the arm instead of pressing sideways on the port.
Vacuum cup lines on PCB handling
The -750 mmHg (10 Torr) vacuum rating lets this elbow sit between a compact ejector and the suction cup holder on a PCB transfer head, where the 4 mm tube run has to bend sharply around the holder body.
Pressure switch signal take-off in a control cabinet
Machine signal lines often use 4 mm tubing against a pressure switch with a 1/8 in stud inside the cabinet; the female elbow makes that joint at a right angle without the tube fouling the cabinet wall or neighbouring terminals.
Is the Airtac PLF L-Shaped Female Thread Adapter PLF401 the Right Part?
PLF401 sits at the very bottom of the PLF tube ladder - Dia 4 is the smallest tubing size this female elbow is made in, and the 3.2 mm size is reserved for the PC and PL mini series only. The step up in bore is PLF601 (Dia 6), which buys you more flow area on the same port. On the thread side, the next port size up is the 1/4 in PLF402.
Match the 1/8 in female thread to a male stud on the valve, cylinder or switch you are feeding, and remember tube OD must match exactly - this fitting grips 4 mm tube and will not seal on a 6 mm line. If you need to pass through a panel instead of landing on a port, the PM bulkhead or PLM bulkhead elbow is the right shape, not this one.
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 PLF L-Shaped Female Thread Adapter PLF401 FAQ
It joins Dia 4 mm tubing to a 1/8 in PT female thread. Working pressure is 0 to 1.0 MPa (0 to 10 kgf/cm2), negative pressure is -750 mmHg (10 Torr), proof pressure is 1.5 MPa and the service temperature range is -20 to +70 C. Use soft nylon or polyurethane tube; other ODs will not lock.
No. AirTAC ships this threaded fitting with sealant already applied to the thread, so it seals on the male stud as delivered. (M5 sizes in the range use a sealing gasket instead - that is why they look different.) Keep the pre-applied sealant intact when you disassemble and refit, and top up only if it has been fully wiped off.
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Standard parts are processed and dispatched in 3-5 business days.
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