Airtac PC Threaded Straight Connector PC1203-S
SUS304 stainless variant (-S)The AirTAC Airtac PC Threaded Straight Connector PC1203-S is a genuine male connector for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeMale connector
- SeriesPC
- 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 PC Threaded Straight Connector PC1203-S
The PC1203-S is the stainless-steel version of AirTAC's PC male connector, joining Dia 12 mm soft nylon or polyurethane tubing to a 3/8 in PT male thread. Push the tube into the collet until it bottoms out and the stainless spring gasket and chuck grip it under any pressure; press the POM release ring to free it again. The thread arrives pre-coated with sealant, so it goes onto the port without extra tape or paste.
On the PC series the -S suffix is the strongest version AirTAC offers: the body itself is machined from SUS304 and the whole connector is copper-free, not just the stud as on the stainless elbows and tees. The release button and chuck stay POM, the guide is aluminium alloy and the O-ring is NBR. Ratings are identical to the brass-bodied PC1203 - 0 to 1.0 MPa working, 1.5 MPa proof, -20 to +70 C and -750 mmHg vacuum - because stainless changes the material, not the pressure envelope.
Airtac PC Threaded Straight Connector PC1203-S Technical Specifications
| Model | Airtac PC Threaded Straight Connector PC1203-S |
|---|---|
| Type | Male connector |
| Series | PC |
| 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 PC Threaded Straight Connector PC1203-S
| PC | Male connector. |
|---|---|
| 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 PC Threaded Straight Connector PC1203-S Is Used
Copper-free airline at plating and process benches
On electroplating, etching and rinse stations, dissolved copper can contaminate bath chemistry and trigger rejects. The PC1203-S copper-free SUS304 body lets you run a Dia 12 supply line straight into a 3/8 in threaded drop without introducing brass into the wet zone.
Wash-down actuation on food packaging conveyors
Packaging lines that are hosed down daily corrode standard brass fittings at the thread shoulder first. This stainless connector feeds Dia 12 tubing to conveyor gate and reject cylinders, and its POM release button stays operable with wet or gloved hands.
Manifold supply on clamp and press fixtures
Fixture builders spec 3/8 in ports on valve manifolds for clamp circuits that cycle all shift. The PC1203-S plugs a 12 mm trunk line directly onto that port, and because the thread arrives with sealant applied, a fixture rebuild needs no taping and leaves no PTFE shreds in the manifold.
Is the Airtac PC Threaded Straight Connector PC1203-S the Right Part?
On a 3/8 in PC thread, Dia 12 is the largest tube made, so PC1003 (Dia 10) is the only step down within this thread; it suits lighter cylinders and shorter runs where a 12 mm bore is more airline than the actuator needs. If the port itself is smaller, PC1202 takes the same Dia 12 tube onto a 1/4 in thread, and PC1204 opens the same tube onto 1/2 in when you want the port, not the fitting, to be the flow limit. Tube OD must match exactly - a Dia 12 collet will not seal on 1/2 in or 10 mm tubing.
Choose this stainless PC over the standard brass one when the line lives in a wet, corrosive or contamination-sensitive zone and the circuit runs 12 mm main-size tubing. For elbows, tees or branch shapes in stainless, remember those families keep a PBT body and only the stud is SUS304 - the PC1203-S is one of the few one-touch parts with a solid stainless 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 PC Threaded Straight Connector PC1203-S FAQ
It is a stainless one-touch male connector joining Dia 12 mm tubing to a 3/8 in PT male thread. Working pressure 0 to 1.0 MPa (0 to 10 kgf/cm2), negative pressure down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. The body is SUS304 and copper-free; tubing must be soft nylon or polyurethane of exactly 12 mm OD.
No. AirTAC rates the stainless variant exactly the same as the brass-bodied original: 0 to 1.0 MPa working, 1.5 MPa proof, -20 to +70 C. What you gain is a SUS304, copper-free body for corrosive and wash-down environments. Also note the metal BP-series parts have different ratings (0.9 MPa, up to 150 C) - the PC1203-S belongs to the resin-and-stainless line, not that one.
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