Airtac PLL L-Type Extended Thread Connector PLL4M5
The AirTAC Airtac PLL L-Type Extended Thread Connector PLL4M5 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 PLL4M5
The PLL4M5 is an AirTAC PLL extended male elbow, a one-touch fitting that joins Dia 4 mm soft nylon or polyurethane tubing to an M5x0.8 male thread at a right angle. The extended nose is the whole point of this shape: the thread sits further out from the elbow body, so a spanner or finger has room to turn the fitting even when the port is buried beside a valve block or inside a machine guard.
Connection is a single push. Seat the tube fully home and the stainless spring gasket plus chuck assembly grips it against the aluminium-alloy guide; press the POM release ring to free it again. This is the resin/brass profile, rated 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg, proof pressure 1.5 MPa and -20 to +70 C. Because M5 is below the PT range, AirTAC supplies this size with a sealing gasket on the thread instead of pre-applied sealant, so no tape is needed and the port thread is not contaminated by paste.
Airtac PLL L-Type Extended Thread Connector PLL4M5 Technical Specifications
| Model | Airtac PLL L-Type Extended Thread Connector PLL4M5 |
|---|---|
| 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 PLL4M5
| 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 PLL4M5 Is Used
Mini gripper cylinder ports
Small-bore pneumatic grippers and slave cylinders often carry M5 side ports recessed between body faces. The extended PLL4M5 nose keeps the elbow clear of the housing so the Dia 4 line can drop away vertically without fouling adjacent fittings.
Compact dosing and analysis modules
Laboratory fluid handling and analytical instrument air circuits use M5 valve ports where Dia 4 polyurethane tubing carries purge or actuation air. The elbow turns the run at the port itself, and the gasket-sealed M5 thread avoids loose sealant particles near sensitive components.
Pilot lines on compact valve manifolds
Where a pilot signal has to leave an M5 port on a tightly packed valve island, a straight connector often cannot be turned or removed. The extended elbow gives the wrench clearance and directs the Dia 4 tube along the manifold edge.
Is the Airtac PLL L-Type Extended Thread Connector PLL4M5 the Right Part?
Dia 4 is the smallest tube the PLL series offers on any thread, and with M5 the only step up is Dia 6 (PLL6M5). Stepping to Dia 6 doubles the bore area, so if a small cylinder is running slow on long tubing, the fix may be the next size rather than more pressure. If you want to keep Dia 4 tubing but need a more common port, PLL401 fits the same tube onto a 1/8 in PT thread. Remember the tube must match exactly: this fitting holds genuine Dia 4 mm metric tube only, never 1/4 in (6.35 mm) imperial line.
Choose the extended PLL nose over the plain PL when the port sits in a recess, tight against a manifold wall, or next to a neighbouring fitting that blocks a short elbow. On the M5 size the sealing gasket does the job that thread sealant does on the 1/8 in and larger versions, so do not add PTFE tape.
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 PLL4M5 FAQ
It is an AirTAC PLL extended male elbow one-touch fitting with Dia 4 mm tube connection and an M5x0.8 male thread (gasket sealed). Working pressure is 0-1.0 MPa (0-10 kgf/cm2), vacuum capability is -750 mmHg (10 Torr), proof pressure is 1.5 MPa, and the working temperature range is -20 to +70 C. It suits soft nylon or polyurethane tubing. The standard colour is grey; a D suffix changes the release button to black on this series.
No tape is needed. On the M5x0.8 size AirTAC uses a sealing gasket rather than the pre-applied thread sealant found on the 1/8 in and larger PT threads in this catalogue. The gasket seats against the port face to seal, so adding PTFE tape or paste risks distorting the small thread and could push debris into the circuit. Thread the fitting in by hand firm with a light spanner turn on the extended nose and check for leaks under pressure.
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