Airtac PLL L-Type Extended Thread Connector PLL1203D-S
SUS304 stainless variant (-S)The AirTAC Airtac PLL L-Type Extended Thread Connector PLL1203D-S 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 PLL1203D-S
The PLL1203D-S is an AirTAC PLL extended male elbow from the resin one-touch range, joining Dia 12 mm soft nylon or polyurethane tubing to a 3/8 in PT male port at a fixed 90 degrees. The extended shoulder between the thread and the elbow body stands the tube column off from the mounting face, which leaves room for a spanner on the hex and keeps the tubing clear of the panel or casting the fitting screws into. Connection is genuinely one-touch: push the 12 mm tube into the chuck until it bottoms, the stainless spring gasket and collet lock it against the NBR O-ring, and pressing the release ring frees it again.
This is the standard resin/brass pressure profile, not a high-temperature metal part: 0 to 1.0 MPa working, 1.5 MPa proof, -750 mmHg vacuum, -20 to +70 C. Because of the -S suffix, the threaded stud that carries the 3/8 in PT thread is SUS304 stainless steel, while the black PBT body and POM release button remain exactly as the standard PLL1203D. So the metal that meets your port thread resists corrosion, and AirTAC publishes no pressure, temperature or dimensional change for the stainless version - the figures above apply unchanged. The threaded stud arrives with sealant already applied.
Airtac PLL L-Type Extended Thread Connector PLL1203D-S Technical Specifications
| Model | Airtac PLL L-Type Extended Thread Connector PLL1203D-S |
|---|---|
| Type | Extended male elbow |
| Series | PLL |
| 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 PLL L-Type Extended Thread Connector PLL1203D-S
| 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. |
| -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 PLL L-Type Extended Thread Connector PLL1203D-S Is Used
Wash-splashed ports on food-line conveyors
On a packaging conveyor regularly hosed down at the end of a shift, the 3/8 in PT stud is the surface that wets and corrodes first; the SUS304 stud on this elbow keeps the thread engagement sound, with the black PBT body shrugging off splash and detergents.
Dockside and marine actuation
Salt-laden air attacks plated brass threads on quayside cranes, gangway cylinders and hatch actuators. A 12 mm supply line turned 90 degrees into a cylinder port through a stainless stud survives that atmosphere far better at the joint than a plain plated elbow.
Tight-guard cylinder drops on packaging machinery
Inside a machine guard where a straight connector leaves the tube fouling the cylinder nose, the extended elbow drops the 12 mm run vertically and its longer shoulder gives a wrench the access a compact fitting blocks - useful on horizontal cartoner and case-packer cylinders.
Is the Airtac PLL L-Type Extended Thread Connector PLL1203D-S the Right Part?
At 3/8 in PT on the PLL ladder, Dia 12 is the top of the range - there is no larger tube size above it in this catalogue. The only step down at this thread is the PLL1003-S at Dia 10 mm, which halves the cross-sectional area the bore can pass and suits lighter-feeding runs; if your cylinder or valve port is plumbed for 12 mm tubing, stay at Dia 12 and match the tube exactly, because a Dia 12 chuck will not grip 13 mm or any other OD. On the thread side, the same Dia 12 tube also exists as PLL1202 (1/4 in) and PLL1204 (1/2 in), so you can match the port without changing tube size. If you need a straight-through port rather than an elbow, that is the PC shape; if the fitting must pass through a panel wall and be nutted from behind, that is the PMF bulkhead instead.
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 PLL1203D-S FAQ
It is an AirTAC PLL extended male elbow for Dia 12 mm tubing with a 3/8 in PT male thread, SUS304 stainless stud and black PBT body. Ratings (identical to the standard version): working pressure 0 to 1.0 MPa (0 to 10 kgf/cm2), proof pressure 1.5 MPa, negative pressure -750 mmHg (10 Torr), operating temperature -20 to +70 C. Tubing must be soft nylon or polyurethane with a 12 mm OD.
On elbow-type one-touch fittings like the PLL family, AirTAC's stainless option replaces the threaded stud with SUS304 and leaves the body as PBT. The stud is the part exposed to port threads, moisture and wash-down, so that is where corrosion resistance is aimed; the dimension tables and every pressure and temperature figure match the standard PLL1203D exactly, so no re-rating is needed or allowed.
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