Airtac PLL L-Type Extended Thread Connector PLL402D
The AirTAC Airtac PLL L-Type Extended Thread Connector PLL402D 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 PLL402D
The PLL402D is an AirTAC PLL extended male elbow, the one-touch fitting with a longer threaded nose than the standard PL elbow. This SKU joins Dia 4 mm soft nylon or polyurethane tubing to a 1/4in PT male thread, with the D suffix specifying the black body colour. You push the tube straight in: it slides past the POM release button, the stainless spring gasket seats it, and the internal chuck grips the tube wall. Pressing the release ring frees the tube again without tools.
This is the resin one-touch profile: working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and a temperature range of -20 to +70 C. The pressure-bearing stack is a POM release button and chuck, an aluminium-alloy guide, a stainless spring gasket and an NBR O-ring, on a black PBT body with a brass stud. The 1/4in PT thread arrives with sealant already applied, so no extra tape or compound is needed at assembly.
Airtac PLL L-Type Extended Thread Connector PLL402D Technical Specifications
| Model | Airtac PLL L-Type Extended Thread Connector PLL402D |
|---|---|
| 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 PLL402D
| 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 PLL402D Is Used
Miniature gripper feed on a pick-and-place head
A small pneumatic gripper mounted on a PCB handling head is fed by 4 mm polyurethane tube from a 1/4in PT port on the valve manifold. The elbow turns the run 90 degrees into the gripper body, and the extended nose keeps the fitting clear of the gripper's own housing screws.
Instrument panel supply on lab and coating equipment
Bench-top coating and test rigs often carry 1/4in PT threaded ports on the rear panel while the actuator or ejector inside needs a light 4 mm line. The PLL402D bridges that mismatch at the panel, with the pre-applied thread sealant making the port connection a single wrench tighten.
Small actuator behind packaging machine guarding
On packaging machines with dark frames, a jet or counter actuator sits behind sheet-metal guarding with its port facing sideways. The extended male nose reaches through the guard slot to the port, and the black PBT body blends into the machine's painted structure.
Is the Airtac PLL L-Type Extended Thread Connector PLL402D the Right Part?
Dia 4 mm is the smallest tube bore the PLL ladder carries, so there is no step down; the 3.2 mm size belongs only to the PC and PL mini series and is not offered on PLL. The next size up is Dia 6 on the same 1/4in thread, ordered as PLL602, and it buys you a stiffer line with more effective bore for runs feeding larger small actuators. On the thread axis, a 1/8in version of this exact part exists as PLL401, but there is no 3/8in variant for Dia 4 tube, so 1/4in is the largest port this bore can serve. Whichever you pick, tube OD must match the fitting exactly: a Dia 4 chuck will not hold 6.35 mm imperial tube.
Choose PLL over PL when the port sits recessed or the elbow body must clear surrounding metal; the extended nose lets the pre-sealed thread engage fully before the body fouls. If the line has to pass through a panel wall instead of ending at one, the PLM bulkhead male elbow is the shape you need, 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 PLL L-Type Extended Thread Connector PLL402D FAQ
Working pressure is 0-1.0 MPa (0-10 kgf/cm2), negative pressure goes to -750 mmHg (10 Torr), proof pressure is 1.5 MPa, and the temperature range is -20 to +70 C. The fitting accepts Dia 4 mm soft nylon or polyurethane tubing and has a 1/4in PT male thread on a black PBT body with a brass stud. It is part of the resin one-touch line, not the 0.9 MPa metal BPC line.
No. The thread size and the tube size are independent; the code PLL402D reads as Dia 4 tube and 02 (1/4in) thread. The chuck grips exactly Dia 4.0 mm tube, while 1/4in tubing measures about 6.35 mm OD and will neither insert nor seal. If you need 6 mm metric tube on this thread, order the PLL602 instead.
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