Airtac PL L Connector PL401-S
SUS304 stainless variant (-S)The AirTAC Airtac PL L Connector PL401-S is a genuine male elbow for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeMale elbow
- SeriesPL
- 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 PL L Connector PL401-S
PL401-S is the AirTAC PL male elbow in the SUS304 option: a one-touch push-in fitting that joins Dia 4 mm soft nylon or polyurethane tube to a 1/8 in PT male thread turned through 90 degrees. Push the tube home and the stainless spring gasket plus chuck grip it against vibration; press the POM release ring and the tube frees straight out. The male thread arrives with sealant already applied, so the elbow can be wound straight into a prepared port without extra tape or compound.
This is the resin-line pressure profile, not the metal one: 0 to 1.0 MPa working, 1.5 MPa proof, -20 to +70 C, and it holds -750 mmHg vacuum. On the PL series with an -S suffix the body stays PBT and only the threaded stud is SUS304, so the dimensions are identical to the standard grey PL401. The stainless is there to stop the stud corroding in wet or chemically aggressive plant air.
Airtac PL L Connector PL401-S Technical Specifications
| Model | Airtac PL L Connector PL401-S |
|---|---|
| Type | Male elbow |
| Series | PL |
| Connection | Push-in one-touch |
| Body material | Stainless steel 304 (-S variant) |
| 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. Stainless (-S): SUS304 in place of brass - a solid SUS304 body on the PC and POC straight connectors, and a PBT body with a SUS304 stud on the elbow, tee and branch shapes. Working pressure, proof pressure and temperature are unchanged from the standard version. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac PL L Connector PL401-S
| PL | 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. |
| -S | Stainless-steel body. |
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 PL L Connector PL401-S Is Used
Cylinder port turn inside a tight guard
On a compact packaging machine, the 90 degree PL stud lets 4 mm PU tube exit a small cylinder port sideways instead of straight out, clearing the guard sheet without a kink.
Plating and rinse-line air feeds
In an electroplating shop, the SUS304 stud shrugs off acidic mist that pits a plain brass stud, keeping the Dia 4 pilot line to a rinse-station valve working.
Pick-and-place gripper plumbing
On a SCARA robot gripper, a short 4 mm nylon run through this elbow stays inside the arm profile, and the release ring lets technicians swap grippers without cutting tube.
Is the Airtac PL L Connector PL401-S the Right Part?
Dia 4 is the smallest tube in the PL 1/8 in ladder - there is no step down on this thread. Step up to PL601-S for Dia 6 tube and you gain bore, letting the same elbow feed actuators that draw more air without a bottleneck at the joint. If the port is tapped M5x0.8 instead, PL40M5-S covers the same Dia 4 tube on a smaller stud.
Match the male thread to the port first: this stud is 1/8 in PT tapered, suited to 1/8 in ports on valves, cylinders and manifold blocks. The elbow shape is the point of the part - it turns the tube run 90 degrees at the port, shortening the run inside a tight guard. Tube OD must match exactly: a Dia 4 fitting will not seal on 6 mm tube, however close it looks.
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 PL L Connector PL401-S FAQ
It is a one-touch male elbow for Dia 4 mm tube on a 1/8 in PT male stud. Working pressure is 0 to 1.0 MPa (0 to 10 kgf/cm2), proof pressure 1.5 MPa, and it withstands -750 mmHg (10 Torr) vacuum. Working temperature is -20 to +70 C with soft nylon or polyurethane tube. On the -S variant the stud is SUS304; the elbow body remains PBT.
No. AirTAC's -S option on the PL series puts SUS304 on the threaded stud only - the body stays PBT, so dimensions and every pressure figure match the standard PL401 exactly. That makes it a direct swap wherever a corroding stud, not the body, is the failure point. If you need a fully stainless body, the PC-S and POC-S straight connectors are the series to look at.
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