Airtac PKD Reducing Thread 5-Way Fitting PKD10-803D-S
SUS304 stainless variant (-S)The AirTAC Airtac PKD Reducing Thread 5-Way Fitting PKD10-803D-S is a genuine male reducer triple branch for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeMale reducer triple branch
- SeriesPKD
- 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 PKD Reducing Thread 5-Way Fitting PKD10-803D-S
The AirTAC PKD10-803D-S is a male reducer triple branch in the resin one-touch family, and it is the largest of the three PKD sizes AirTAC builds. The male stud carries a 3/8in PT thread, two main ports accept Dia 10 mm soft nylon or polyurethane tube, and the centre branch drops to Dia 8 mm. Push the tube in and the stainless spring gasket plus chuck grip it for a sealed joint; press the POM release ring and the tube frees again. The trailing -S fits a SUS304 stainless stud into the assembly, while the body stays PBT and the D suffix gives it a black finish rather than the standard grey.
This part runs on the resin one-touch profile: 0 to 1.0 MPa working pressure (0 to 10 kgf/cm2), -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure and -20 to +70 C. The threaded stud arrives with sealant already applied, so no additional tape or paste is needed at the port. Do not use it as a high-temperature fitting; that role belongs to the separate metal BP family, which is rated lower on pressure but up to 150 C.
Airtac PKD Reducing Thread 5-Way Fitting PKD10-803D-S Technical Specifications
| Model | Airtac PKD Reducing Thread 5-Way Fitting PKD10-803D-S |
|---|---|
| Type | Male reducer triple branch |
| Series | PKD |
| 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 PKD Reducing Thread 5-Way Fitting PKD10-803D-S
| PKD | Male reducer triple branch. |
|---|---|
| 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 PKD Reducing Thread 5-Way Fitting PKD10-803D-S Is Used
Plastics extrusion cooling drop
A Dia 10 trunk feeding cooling-air nozzles on an extruder line branches down to Dia 8 lines running to individual air knives, all from one 3/8in threaded outlet on the manifold.
Weld-shop clamp cylinder header
In an automotive body shop, the Dia 10 supply header drops through the PKD branch to Dia 8 tube feeding weld-gun clamp cylinders, with the SUS304 stud standing up to corrosive welding fume better than bare brass.
Rotary packaging table feed
A rotary indexing table on a food-packaging machine takes Dia 10 air in through its centre and branches to Dia 8 lines serving vacuum ejectors and reject-blow nozzles around the dial.
Is the Airtac PKD Reducing Thread 5-Way Fitting PKD10-803D-S the Right Part?
AirTAC makes exactly three PKD parts - PKD6-401, PKD8-602 and this PKD10-803 - so the sizing ladder is short. Step down to PKD8-602 for a Dia 8 main run with a Dia 6 branch on a 1/4in thread; there is nothing larger, so if your trunk line exceeds Dia 10 you need a different family. Check your port with a thread gauge before ordering: 3/8in PT is the only stud option here, and the branch port takes Dia 8 tube only, never Dia 10.
Tube OD must match exactly - a Dia 10 port will not seal on 3/8in (10 mm nominal but differently toleranced) or 12 mm tube. If you need a plain equal tee instead of a reducer branch, the PED male run tee covers a far wider size range. Remember the release ring needs a fingertip of clearance, so leave access space around the two Dia 10 ports.
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 PKD Reducing Thread 5-Way Fitting PKD10-803D-S FAQ
Working pressure 0 to 1.0 MPa (0 to 10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. The fitting joins two Dia 10 mm main tube ports and one Dia 8 mm branch port to a 3/8in PT male stud. The -S variant adds a SUS304 stainless stud to a PBT body in black; every pressure, vacuum and temperature figure is identical to the grey standard version.
No. On the PKD family the -S option changes only the stud to SUS304 stainless steel; the body remains PBT, the release button and chuck stay POM, the guide stays aluminium alloy and the O-ring stays NBR. AirTAC publishes no corrosion class, passivation or certification for this variant, and the ratings and dimensions are unchanged, so you can swap it for a standard PKD10-803 without redesigning the port.
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