Airtac PH-1 Hex Head Toggle Joint PH401-S
SUS304 stainless variant (-S)The AirTAC Airtac PH-1 Hex Head Toggle Joint PH401-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 PH401-S
The PH401-S is AirTAC's universal male elbow in its smallest tube size: it joins Dia 4 mm soft nylon or polyurethane tubing to a 1/8 in PT male port, and the male thread swivels so the elbow body can be aimed at the tube run after the thread is tightened. To connect, push the tube straight into the chuck until it bottoms out; the stainless spring gasket and chuck grip it under spring load, and pressing the release ring frees it again.
This -S variant carries a SUS304 stainless stud on a PBT body, so the threaded joint itself resists corrosion while the resin one-touch section keeps its light weight and low cost. It runs on the standard resin spec profile: 0 to 1.0 MPa working pressure, -750 mmHg vacuum, 1.5 MPa proof pressure, -20 to +70 C. Do not re-rate it because of the stainless stud - the pressure and temperature figures are identical to the plain PH401.
Airtac PH-1 Hex Head Toggle Joint PH401-S Technical Specifications
| Model | Airtac PH-1 Hex Head Toggle Joint PH401-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 PH401-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 PH401-S Is Used
Analytical sampling lines
Dia 4 polyurethane runs feeding small sample pumps and valves on lab and process-analysis skids, where the SUS304 stud stands up to intermittent condensation at the instrument port.
Washdown-side sensor air
Purge and actuation air on food packaging machines near the wash zone - the swivel male thread lets the elbow clear a guard bracket while the stainless stud resists the wet-port corrosion that grabs plated studs.
Compact jig clamping
Tiny pneumatic clamps on assembly jigs where the 1/8 in PT port points at the fixture wall; the universal elbow turns the tube run away instead of forcing a tight bend in Dia 4 tubing.
Is the Airtac PH-1 Hex Head Toggle Joint PH401-S the Right Part?
Dia 4 is the bottom of the PH 1/8 in ladder, which steps 4, 6, 8 mm - the only step up from here is the PH601-S on Dia 6 tube, which buys you a stiffer line and more effective bore for short actuator feeds. If you want a smaller port on Dia 4 tube, M5 is the other thread this tube size takes on the PH series, and it seals with a gasket rather than pre-applied thread sealant. Where the port faces the wrong way and you would rather swap the fitting than the machine, the PHF female universal elbow is the mating alternative.
Tube OD must match the chuck exactly: a Dia 4 fitting will not seal or hold 5/32 in (4 mm nominal imperial) tube of a different wall, and it will never hold Dia 6. The stainless variant shares the dimension tables of the standard part, so any drawing or manifold cut-out you have for a PH401 carries over unchanged.
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 PH401-S FAQ
It is a SUS304-stud universal male elbow for Dia 4 mm soft nylon or polyurethane tube with a 1/8 in PT male thread. Working pressure 0 to 1.0 MPa (0 to 10 kgf/cm2), negative pressure -750 mmHg, proof pressure 1.5 MPa, operating temperature -20 to +70 C. The stud is SUS304 on a PBT body; all ratings and dimensions match the standard grey PH401.
Yes, AirTAC ships threaded one-touch fittings with sealant already applied to the male thread, so the PH401-S can generally be screwed straight into a PT port without extra tape or paste. On M5 versions of this family a sealing gasket does that job instead. Keep the swivel stud from being over-stressed sideways when tightening, and hold the body while turning the thread rather than wrenching the elbow casting.
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