Airtac PLF L-Shaped Female Thread Adapter PLF402D
The AirTAC Airtac PLF L-Shaped Female Thread Adapter PLF402D 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 PLF402D
The PLF402D is an AirTAC PLF female elbow from the resin one-touch range. It connects a Dia 4 mm tube to a 1/4 inch female PT thread at a fixed 90 degrees. To make the joint you simply push the soft nylon or polyurethane tube straight into the chuck; an internal stainless spring gasket and POM chuck grip the tube wall, and pressing the POM release button frees it again for rework. The elbow body turns the air path, so the tube leaves sideways instead of straight off the port.
This is the resin profile, not the metal BPC line: working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, vacuum down to -750 mmHg, and a temperature window of -20 to +70 C. On PLF the trailing D means the body itself is moulded in black rather than the standard grey, a useful visual tag on machines where grey fittings would be lost against the frame. Like every threaded part here, the 1/4 inch port arrives with sealant already applied, and the release button, chuck and guide are POM and aluminium alloy over a brass stud.
Airtac PLF L-Shaped Female Thread Adapter PLF402D Technical Specifications
| Model | Airtac PLF L-Shaped Female Thread Adapter PLF402D |
|---|---|
| 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 PLF402D
| 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 PLF402D Is Used
Pick-and-place cylinder port
On a compact pick-and-place gantry, the double-acting cylinder port often sits hard against a bracket. A PLF402D threads onto the port and turns the Dia 4 mm signal line sideways, clearing the housing where a straight fitting would foul.
Air preparation stack takeoff
A 1/4 inch female outlet on a filter-regulator unit is a natural landing for this elbow. The pre-applied thread sealant seats against the regulator face while the Dia 4 mm tube runs off to a downstream pilot valve or gauge.
Vacuum ejector pilot line
Rated to -750 mmHg, the PLF402D can carry the vacuum side of a small ejector on a robotic palletiser, letting the Dia 4 mm tube turn cleanly into the ejector's female threaded connection without adding a separate elbow union.
Is the Airtac PLF L-Shaped Female Thread Adapter PLF402D the Right Part?
Dia 4 mm is the smallest tube bore AirTAC makes in this one-touch range, so there is no size below it; the step up is Dia 6 on the same 1/4 inch thread, which roughly increases the bore area and suits actuators that need more volume per stroke. On the thread axis, 1/8 inch sits one step down for compact valve outlets and 3/8 inch one step up for larger cylinder ports in the same ladder. Keep the tube OD exact: a Dia 4 fitting will not seal on 1/4 inch (6.35 mm) tube, even though the two numbers look close.
Choose a female elbow over the PL male elbow when the mating part is a stud or pipe rather than a port face, and over the PEB branch tee when you only need a turn, not a split. If the fitting must pass through a panel, the PMF bulkhead female elbow is the shape you want instead.
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 PLF402D FAQ
It is a PLF female elbow joining Dia 4 mm tube to a 1/4 inch female PT thread, with a black (D suffix) body. Working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, negative pressure -750 mmHg (10 Torr), temperature -20 to +70 C. Tubing must be soft nylon or polyurethane.
No. AirTAC ships threaded one-touch fittings with sealant already applied to the PT thread, so the PLF402D should seal as delivered. Only the M5 sizes in this catalogue use a sealing gasket instead. Avoid stacking extra tape, which can distort the seal or carry debris into the circuit.
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