Airtac PL L Connector PL402-S
SUS304 stainless variant (-S)The AirTAC Airtac PL L Connector PL402-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 PL402-S
The PL402-S is an AirTAC PL male elbow one-touch fitting in the stainless-ordered version: Dia 4 mm tubing on a 1/4in PT male thread, set at 90 degrees so the tube leaves the port sideways. Push the soft nylon or polyurethane tube straight into the chuck and it grips immediately; press the POM release ring to let it go. On this PL family the elbow body stays PBT and it is the male STUD that becomes SUS304 - a deliberate distinction, so do not assume a solid stainless part.
Because the -S suffix changes material rather than ratings, the figures are identical to the grey PL402: working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, and a temperature window of -20 to +70 C. The thread ships with sealant applied, so no extra tape is needed on assembly.
Airtac PL L Connector PL402-S Technical Specifications
| Model | Airtac PL L Connector PL402-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 PL402-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 PL402-S Is Used
Packaging machine cylinder ports
On a horizontal-flow-wrapper cross-seal cylinder, the 90-degree elbow points the Dia 4 pilot line along the machine frame instead of out of the guard, and the SUS304 stud shrugs off daily wipe-downs with mild detergents.
Plating line sensor feeds
Beside an electroplating bath, acid mist attacks brass studs on ordinary fittings. The PL402-S keeps the threaded connection stainless on Dia 4 polyurethane lines running to proximity-air actuators and rinse nozzles.
Rotary actuator tie-down points
A compact rotary actuator on a pick-and-place unit often leaves no room for a straight connector; the elbow lets a Dia 4 tube drop vertically into a 1/4in port and clear the rotating body through its full sweep.
Is the Airtac PL L Connector PL402-S the Right Part?
Dia 4 is the smallest tube this fitting takes, so there is no size below it: the only step up on a 1/4in PL thread is Dia 6 (PL602), which gains bore for a modest increase in elbow height. If you need Dia 4 on a smaller port, the same tube drops to a 1/8in thread as PL401. Where the line must pass through a panel instead of entering a component port, the PLM bulkhead male elbow does that job with a locknut.
Match the tube exactly: this is a Dia 4 mm socket and it will not seal on 5/32in or 1/4in imperial tube. The PT male thread is a tapered parallel-sealing type - hand-start it and wrench-tighten; no published torque figure exists, so tighten to a sound seal without over-stressing the PBT body.
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 PL402-S FAQ
It is an AirTAC PL male elbow one-touch fitting for Dia 4 mm soft nylon or polyurethane tube with a 1/4in PT male thread. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), negative pressure is -750 mmHg (10 Torr), proof pressure is 1.5 MPa, and the operating temperature range is -20 to +70 C. The -S version carries a SUS304 stainless stud; all other figures match the standard grey part.
No on both counts. AirTAC does not re-rate stainless variants: the PL402-S uses exactly the 0-1.0 MPa resin-line figures and the same -20 to +70 C window as the plain PL402, and its dimensions match too. The socket accepts Dia 4 mm metric tube only - a 1/4in imperial tube will not grip or seal, so order a fitting from the inch-sized N-series if your tubing is imperial.
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