Airtac PKD Reducing Thread 5-Way Fitting PKD8-602D-S
SUS304 stainless variant (-S)The AirTAC Airtac PKD Reducing Thread 5-Way Fitting PKD8-602D-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 PKD8-602D-S
The PKD8-602D-S is an AirTAC male reducer triple branch, the only shape in the PKD family: a single 1/4in PT male stud that splits one Dia 8 supply run into three Dia 6 one-touch outlets. Push each soft nylon or polyurethane tube into its port and the internal chuck grips it; press the POM release ring to let it go. Because it is a reducer, the three branch ports are one tube size smaller than the main bore, so a manifold line can be tapped down without adding a separate reducing union.
The -S suffix fits a SUS304 stainless stud to this part; the body and housing remain glass-reinforced PBT, so it is best read as a corrosion-resistant threaded interface rather than a solid stainless fitting. The D suffix makes the body black instead of the standard grey. Ratings follow the standard resin profile: 0-1.0 MPa working, 1.5 MPa proof, -750 mmHg vacuum and -20 to +70 C. Note that AirTAC lists exactly three PKD reducers in the whole catalogue, so this Dia 8 to Dia 6, 1/4in version is one of a very short ladder.
Airtac PKD Reducing Thread 5-Way Fitting PKD8-602D-S Technical Specifications
| Model | Airtac PKD Reducing Thread 5-Way Fitting PKD8-602D-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 PKD8-602D-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 PKD8-602D-S Is Used
Rotary indexing table on a packaging machine
Tap one 1/4in PT port on the rotary table's air distributor and split a Dia 8 feed into three Dia 6 lines running the vacuum cups and clamp cylinders around the index, with the reducer doing the size step in a single part.
Pick-and-place gripper manifold on an electronics assembly robot
Where the EOAT harness carries one 1/4in PT drop from the robot arm, the PKD8-602D-S branches it into three Dia 6 runs feeding the gripper jaws, sensing block and blow-off nozzle without extra unions.
Washdown bracket feed on a bottling line rinser
The SUS304 stud resists corrosion on the wet side of a bottle rinser where the fitting threads into a sprayed stainless manifold, while the black PBT housing keeps the three Dia 6 nozzle feeds light and sealed.
Is the Airtac PKD Reducing Thread 5-Way Fitting PKD8-602D-S the Right Part?
Step down and this becomes PKD6-401, a Dia 6 to Dia 4 reducer on a 1/8in PT stud for light instrument and sensor lines. Step up and the next part is PKD10-803, Dia 10 to Dia 8 on a 3/8in stud for larger cylinder feeds. There is nothing between or beyond those two - PKD does not come in Dia 12 or in M5, so if you need a bigger split the PED male run tee family takes over. Match the 1/4in stud to a PT-taped 1/4in port; the thread arrives with sealant applied.
Check both tube diameters before ordering: every port on this fitting is size-exact, so a Dia 6 outlet will not grip 1/4in (6.35 mm) imperial tube and the Dia 8 inlet will not hold Dia 10. If you need to feed lines of mixed sizes from one thread, a PG different-diameter union plus this reducer is the cleaner route than forcing a wrong-size tube home.
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 PKD8-602D-S FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. The part joins a Dia 8 mm supply tube to three Dia 6 mm branch tubes on a 1/4in PT male stud, and the -S stainless variant carries exactly the same ratings as the standard grey version.
No. On the PKD family the -S option replaces the threaded stud with SUS304 stainless steel; the body, branch housings and release rings remain POM and PBT as on the standard part. AirTAC does not re-rate the stainless variant either, so pressure, vacuum and temperature figures are unchanged. If you need an all-metal high-temperature part, the BPM metal bulkhead line is a different family with its own 0.9 MPa / 150 C profile.
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