Airtac PLL L-Type Extended Thread Connector PLL401
The AirTAC Airtac PLL L-Type Extended Thread Connector PLL401 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 PLL401
The AirTAC PLL401 is an extended male elbow from the resin one-touch range: a Dia 4 mm tube socket set at 90 degrees to a 1/8in PT male thread on a lengthened brass stud. To make a joint, push the soft nylon or polyurethane tube straight into the socket until it bottoms out - the stainless toothed chuck grips the tube wall and the NBR O-ring seals it. Pressing the POM release ring toward the body frees the chuck so the tube slides out again, no tools needed on the tube side.
This is the standard resin/brass spec profile: working pressure 0-1.0 MPa, vacuum to -750 mmHg, proof pressure 1.5 MPa, and a temperature window of -20 to +70 C. The 1/8in stud arrives with sealant already on the thread and the body is PBT over a brass stud. The extended neck is the point of this prefix: the threaded portion stands clear of the elbow body, so a spanner can turn the thread without fouling the fitting behind it and the elbow can be clocked to the angle you want before final tightening.
Airtac PLL L-Type Extended Thread Connector PLL401 Technical Specifications
| Model | Airtac PLL L-Type Extended Thread Connector PLL401 |
|---|---|
| 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 PLL401
| 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 PLL401 Is Used
Cylinder port inside a packaging guard
On a carton-sealing machine, the small bore cylinders that drive the crimp jaw sit close to the frame. A PLL401 at the 1/8in port turns the 4mm speed-control line 90 degrees and the extended stud keeps it clear of the switch bracket bolted alongside.
Manifold block on a lab bench rig
A compact aluminium manifold feeding a benchtop fluid-handling station has closely pitched 1/8in ports. The lengthened PLL401 stud seats through the surrounding block face so the spanner lands on bare thread, not on the fitting next door.
Miniature vacuum ejector feed on a pick-and-place arm
The 4mm supply line to a compact ejector on a PCB handling gantry must turn at the arm pivot. Rated to -750 mmHg vacuum, this elbow carries the suction line at the port without adding the bulk a straight connector plus separate elbow would.
Is the Airtac PLL L-Type Extended Thread Connector PLL401 the Right Part?
Dia 4 is the smallest tube size the PLL ladder offers - there is no 3.2 mm variant on this prefix, only on the PC and PL mini series - so the only step available is up to PLL601 (Dia 6, same 1/8in thread), which buys you a stiffer tube wall and more flow area for lines feeding a larger actuator. On the thread side you can drop to the M5 version PLL40M5 for small valve and manifold ports, or step up to PLL402 for a 1/4in port. Confirm the port before ordering: this catalogue documents PT thread only.
Choose this shape over the straight PC connector when the tube has to leave a port at 90 degrees, and over the standard PL male elbow when the port is recessed or surrounded by hardware - the longer stud is what makes the difference there. If the fitting has to pass through a panel, the bulkhead-style PLM is the right body, not this one. And match tube OD exactly: a Dia 4 socket will not seal on 5/32in or 1/4in tube.
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 PLL401 FAQ
The PLL401 is a one-touch extended male elbow joining Dia 4 mm soft nylon or polyurethane tube to a 1/8in PT male thread. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), it tolerates vacuum down to -750 mmHg, proof pressure is 1.5 MPa, and the working temperature range is -20 to +70 C. The thread arrives pre-coated with sealant and the standard body colour is grey; the D suffix changes the body to black on this series.
No. The chuck and O-ring are sized to one tube OD and nothing else - this socket holds 4 mm tube only, and 5/32 inch (3.97 mm nominal) or 1/4 inch tube will not seat or seal. If your run is genuinely imperial tube, you need a different catalogue, not a near-size here. Within this range, the correct neighbours are PLL40M5 (M5 thread) and PLL402 (1/4in thread) on the same 4mm bore.
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