Airtac PC Threaded Straight Connector PC804-S
SUS304 stainless variant (-S)The AirTAC Airtac PC Threaded Straight Connector PC804-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 PC804-S
The PC804-S is the AirTAC PC series male connector in its SUS304 stainless version: a one-touch push-in fitting that joins Dia 8 mm soft nylon or polyurethane tubing to a 1/2in PT male thread. On the PC straight connector the -S suffix changes the body itself to stainless steel 304, and AirTAC states the construction is copper-free, while the release button and chuck stay POM, the guide stays aluminium alloy, the spring gasket is stainless and the O-ring is NBR.
Connection works the same as the standard line: push the Dia 8 tube squarely into the chuck until it seats, and the stainless spring gasket and NBR O-ring grip and seal it; press the release ring to free it. Ratings are unchanged from the standard PC profile - 0 to 1.0 MPa (0 to 10 kgf/cm2) working pressure, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure and -20 to +70 C. The 1/2in PT thread arrives with sealant already applied, so it is ready to thread straight into the port.
Airtac PC Threaded Straight Connector PC804-S Technical Specifications
| Model | Airtac PC Threaded Straight Connector PC804-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 PC804-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 PC804-S Is Used
Electroplating and anodising lines
The copper-free SUS304 body keeps copper ions out of the air supply around plating tanks, where trace copper can contaminate bath chemistry and finish quality on Dia 8 feed lines.
Marine and dockside pneumatics
On fishing vessels and harbour equipment, a stainless straight connector at the solenoid valve or cylinder port resists salt spray far better than a brass body on the same 1/2in thread.
Electronics cleanroom air drops
PCB fabrication and semiconductor tools often specify copper-free wetted parts; this Dia 8 connector feeds machine valves without introducing copper into the process air.
Is the Airtac PC Threaded Straight Connector PC804-S the Right Part?
On the 1/2in thread ladder, the real neighbours are PC604 one size down on Dia 6 tube and PC1004 one size up on Dia 10; a smaller bore is lighter and cheaper on the port, a larger bore suits longer runs with less pressure drop. If the port itself is smaller, the Dia 8 tube is also offered on 3/8in (PC803) and 1/4in (PC802) threads, so match the thread to the mating port rather than the tube. Tube OD must match exactly: a Dia 8 fitting will not grip or seal 1/4in (6.35 mm) imperial hose, and the N-series imperial catalogue is a separate range.
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 PC804-S FAQ
It is a one-touch male connector joining Dia 8 mm tubing to a 1/2in PT male thread. Working pressure 0 to 1.0 MPa (0 to 10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, temperature -20 to +70 C. Applicable tubing is soft nylon or polyurethane. The body is stainless steel 304 and copper-free; the release button and chuck are POM, the guide is aluminium alloy, the spring gasket is stainless and the O-ring is NBR.
No. AirTAC keeps every rating identical to the standard PC series - the -S suffix changes the body material to SUS304 and makes the construction copper-free, not the operating envelope. AirTAC also publishes no surface finish, passivation or corrosion-class figures for the stainless line, and the dimension tables match the standard part, so it drops into the same mounting as a plain PC804.
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