Airtac PLL L-Type Extended Thread Connector PLL402
The AirTAC Airtac PLL L-Type Extended Thread Connector PLL402 is a genuine extended male elbow for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeExtended male elbow
- SeriesPLL
- 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 PLL L-Type Extended Thread Connector PLL402
The AirTAC PLL402 is a PLL series extended male elbow from AirTAC's resin one-touch range. It joins Dia 4 mm soft nylon or polyurethane tubing to a 1/4" PT male thread at 90 degrees, and the extended male section carries more thread engagement than the standard PL elbow - useful on ports where the sealant land sits deep in the boss or behind a raised boss face.
Like every resin P-series fitting, it is rated 0-1.0 MPa working pressure, 1.5 MPa proof pressure, -20 to +70 C, and holds vacuum to -750 mmHg (10 Torr). To connect, push the 4 mm tube into the chuck until it stops; the stainless spring gasket and POM chuck grip it against the PBT body. Press the release ring to free it. The 1/4" thread arrives with sealant already applied, so it seals straight into the port. A -D suffix version is available with a black body if the standard grey does not match your panel.
Airtac PLL L-Type Extended Thread Connector PLL402 Technical Specifications
| Model | Airtac PLL L-Type Extended Thread Connector PLL402 |
|---|---|
| Type | Extended male elbow |
| Series | PLL |
| 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 PLL L-Type Extended Thread Connector PLL402
| PLL | Extended male 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 PLL L-Type Extended Thread Connector PLL402 Is Used
PCB depanner pick heads
Small vacuum and eject cylinders on a PCB depanning head typically run Dia 4 mm PU tubing. The PLL402's extended 1/4" thread reaches a recessed port on the gantry casting while the elbow turns the line down along the arm.
Labeler applicator air feed
Pneumatic label applicator pads and blow-off nozzles feed from compact Dia 4 mm lines. An extended male elbow at the valve manifold's 1/4" outlet gets the small tube exiting cleanly sideways instead of fouling adjacent valve bodies.
Pin marker in a tight guard
Pneumatic pin markers and small clamps mounted inside machine guards often have their cylinder port facing a wall. This elbow's extended thread seats properly in the tapped port while swinging the 4 mm hose parallel to the guard face.
Is the Airtac PLL L-Type Extended Thread Connector PLL402 the Right Part?
Dia 4 is the smallest tube bore the PLL series is made in, so there is no size below it; the next step up is Dia 6 (PLL602), which adds flow capacity for short cylinder feeds at the cost of a bulkier elbow body. On thread, this SKU sits at the top of the Dia 4 ladder: at 4 mm the PLL is offered only in M5 and 1/4" - the 3/8" and 1/2" elbows begin at Dia 6 and Dia 10 respectively. So if your port is M5x0.8, the M5 version of this same elbow is the correct partner part.
Match the 1/4" thread to a tapped PT port and do not step down adapters to make a 4 mm fitting take larger tube - the chuck is sized for exactly Dia 4 mm OD and will not hold 1/4" or 5/32" tubing. If the fitting has to pass through a sheet-metal wall instead of screwing onto a port, the PLM bulkhead male elbow is the shape for that job.
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 PLL L-Type Extended Thread Connector PLL402 FAQ
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. Size: Dia 4 mm tube OD on the chuck side, 1/4" PT male thread on the port side, 90-degree extended male elbow. Applicable tubing is soft nylon or polyurethane. Thread sealant is pre-applied at the factory.
No. The thread size and the tube size are independent. The chuck on this fitting grips only Dia 4 mm OD tubing - a 4 mm fitting will not seal or hold 1/4" (6.35 mm) hose. Keep the thread for the port and order the tube size that matches your hose OD exactly; if your hose is 6 mm, use the PLL602 instead.
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