Airtac PH-1 Hex Head Toggle Joint PH401D-S
SUS304 stainless variant (-S)The AirTAC Airtac PH-1 Hex Head Toggle Joint PH401D-S is a genuine universal male elbow for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeUniversal male elbow
- SeriesPH
- 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 PH-1 Hex Head Toggle Joint PH401D-S
The PH401D-S is an AirTAC PH series universal male elbow, joining Dia 4 mm soft nylon or polyurethane tube to a 1/8 in PT male thread. Unlike a fixed PL male elbow, the universal design lets the male thread swivel, so the fitting body can be set to any angle after the thread is tightened. The connection is one-touch: push the tube in and the stainless spring gasket and chuck grip it; press the release ring to free it. The trailing D gives this part a black body, which suits dark machine frames and panels where grey hardware stands out.
The -S suffix places this SKU in AirTAC's SUS304 stainless line, but on the PH family that means the male stud is stainless steel 304 while the elbow body remains PBT, black in this case. Do not expect a solid stainless fitting. Ratings are the standard resin one-touch profile: 0-1.0 MPa working pressure, -750 mmHg vacuum, 1.5 MPa proof pressure, and -20 to +70 C. The stainless stud is specified where the exposed thread sees moisture or wash-down splash that would corrode a plain brass stud.
Airtac PH-1 Hex Head Toggle Joint PH401D-S Technical Specifications
| Model | Airtac PH-1 Hex Head Toggle Joint PH401D-S |
|---|---|
| Type | Universal male elbow |
| Series | PH |
| 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 PH-1 Hex Head Toggle Joint PH401D-S
| PH | Universal male elbow. |
|---|---|
| 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 PH-1 Hex Head Toggle Joint PH401D-S Is Used
Solenoid valve ports on packaging machinery
Packaging machines often mount 1/8 in pilot valves at odd angles inside the frame. The PH401D-S swivels on its PT stud so the 4 mm tube leaves the valve pointing along the hose route instead of into a guard wall.
Wash-down splash zones on seafood processing lines
In coastal and seafood plants, salt spray and brine attack exposed brass threads quickly. The SUS304 stud on this fitting resists that corrosion at the port, while the black PBT body wipes clean during shift-end hose-down.
Small cylinder ports on rotary indexing tables
Dia 4 tubing feeds compact indexing actuators where every millimetre of clearance matters. The elbow shape turns the tube 90 degrees at the cylinder port, and the swivel lets the assembler dial the exit direction to clear the rotating tooling plate.
Is the Airtac PH-1 Hex Head Toggle Joint PH401D-S the Right Part?
Dia 4 is the smallest tube size the PH series offers, so there is no smaller neighbour on this thread ladder; the step up from PH401D-S is PH601 (Dia 6 on the same 1/8 in PT thread), and Dia 8 (PH801) completes the 1/8 in row. Note that Dia 4 on the PH series is only catalogued with M5 or 1/8 in threads, so if your port is 1/4 in you must move up to a Dia 6 tube first. Match the thread to the port: 1/8 in PT suits small valve and cylinder ports, and M5 (PH40M5) suits compact manifold faces. If you need a straight-through connection instead of an angle, look at the PC male connector rather than the PH.
Tube OD must match exactly: a Dia 4 chuck will not seal on 5/32 in or 6 mm tube, even though those sizes look close to the eye. The swivel stud means you can thread the fitting in, then rotate the elbow body to point the tube run wherever the routing needs it, which saves a bend in tight hose layouts.
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 PH-1 Hex Head Toggle Joint PH401D-S FAQ
This is an AirTAC PH universal male elbow taking Dia 4 mm soft nylon or polyurethane tube into a 1/8 in PT male thread. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), it tolerates -750 mmHg (10 Torr) vacuum, proof pressure is 1.5 MPa, and the operating temperature range is -20 to +70 C. The SUS304 stud and black PBT body do not change any of these figures from the standard resin line.
No. On the PH family, the -S variant makes only the male stud SUS304; the elbow body stays PBT, coloured black here because of the D suffix. Pressure, vacuum and temperature ratings are identical to the standard version, so you choose the -S for corrosion resistance at the exposed thread rather than for a different pressure rating.
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