Airtac PKD Reducing Thread 5-Way Fitting PKD10-803-S
SUS304 stainless variant (-S)The AirTAC Airtac PKD Reducing Thread 5-Way Fitting PKD10-803-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 PKD10-803-S
The AirTAC PKD10-803-S is a male reducer triple branch one-touch fitting: a 3/8in PT male thread on one end and three push-in ports, the main run accepting Dia 10 mm tube while the branch accepts Dia 8 mm tube. Push the tube into the port and the internal chuck grips it for a sealed joint; press the POM release ring and the tube slides straight back out. The thread arrives from AirTAC with sealant already applied, so it goes into a PT port and seals without extra tape.
This -S variant keeps the 1.0 MPa resin-line ratings: 0-1.0 MPa working pressure, 1.5 MPa proof pressure, -750 mmHg vacuum, -20 to +70 C. On the PKD family the stainless applies to the stud, which is SUS304 instead of brass; the shaped body remains PBT with a POM release button, aluminium-alloy guide, stainless spring gasket and NBR O-ring. The stud upgrade resists thread corrosion where the fitting screws into a steel manifold block in damp or wash-prone plant areas.
Airtac PKD Reducing Thread 5-Way Fitting PKD10-803-S Technical Specifications
| Model | Airtac PKD Reducing Thread 5-Way Fitting PKD10-803-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 PKD10-803-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 PKD10-803-S Is Used
Injection moulding machine ejector circuit
A 3/8in threaded outlet on the machine manifold feeds the PKD10-803-S, which runs Dia 10 tube along the main airline while the Dia 8 branch drops air to the ejector cylinder circuit on the moving platen.
CNC fixture clamping distribution
From a 3/8in port on the fixture's air block, the Dia 10 main run continues to a second clamp station while the Dia 8 branch feeds the single swing clamp nearest the thread, keeping one supply point per fixture.
Bottling line reject air blast
Mounted on a 3/8in port beside the conveyor drive, the fitting splits a Dia 10 feed between a Dia 8 line to the reject air nozzle and a Dia 10 run to the next station without a separate tee and reducer.
Is the Airtac PKD Reducing Thread 5-Way Fitting PKD10-803-S the Right Part?
AirTAC makes exactly three PKD part numbers: PKD6-401, PKD8-602 and PKD10-803. The PKD10-803-S is the largest of the set, so there is no size up. Step down to PKD8-602 when the main run is Dia 8 tube with a Dia 6 branch on a 1/4in PT port; PKD10-803-S trades that for a 3/8in port and one extra millimetre of bore on the branch, which matters when a single 3/8in manifold outlet must feed a distribution block and a Dia 8 drop at once. If the branch tube should be the same diameter as the main run, a PEB or PED male tee in Dia 10 is the correct shape instead.
Match the 3/8in PT thread to a 3/8in port, and check that every tube is a true Dia 10 or Dia 8 OD: a Dia 6 tube will not seal in the Dia 8 branch port. AirTAC publishes PT only for this range - no G or NPT ordering code exists.
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 PKD10-803-S FAQ
It joins Dia 10 mm main tube and Dia 8 mm branch tube to a 3/8in PT male thread. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa and temperature -20 to +70 C. The stud is SUS304; the body is PBT with a POM release button, aluminium-alloy guide, stainless spring gasket and NBR O-ring.
No. AirTAC rates the stainless-stud PKD10-803-S identically to the standard brass-stud version, and the dimensions are the same. Only the stud material changes to SUS304. Note also that PKD exists in only three sizes - 6/4, 8/6 and 10/8 - so if you need a different branch ratio, a PEB or PED tee plus a PG union reducer is the alternative route.
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