Airtac PHF Tandem Toggle Joint PHF401-S
SUS304 stainless variant (-S)The AirTAC Airtac PHF Tandem Toggle Joint PHF401-S is a genuine universal female elbow for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeUniversal female elbow
- SeriesPHF
- 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 PHF Tandem Toggle Joint PHF401-S
The PHF401-S is an AirTAC PHF-series universal female elbow in the resin one-touch family, joining Dia 4 mm soft nylon or polyurethane tube to a 1/8in PT female threaded port. Push the tube into the chuck until it seats, and the stainless spring gasket and NBR O-ring lock in the seal; press the POM release ring and the tube pulls straight back out. The elbow body turns the airline through 90 degrees right at the port, so the tube exits sideways instead of pointing into the machine frame.
The -S suffix puts a SUS304 stud on this elbow while the body stays PBT, and the dimension tables match the standard PHF401 exactly, so it drops into the same tapped hole as the grey version. Ratings are unchanged: 0-1.0 MPa (0-10 kgf/cm2) working pressure, 1.5 MPa proof pressure, -750 mmHg (10 Torr) vacuum, -20 to +70 C. The female thread arrives with sealant already applied, so no PTFE tape is needed at assembly.
Airtac PHF Tandem Toggle Joint PHF401-S Technical Specifications
| Model | Airtac PHF Tandem Toggle Joint PHF401-S |
|---|---|
| Type | Universal female elbow |
| Series | PHF |
| 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 PHF Tandem Toggle Joint PHF401-S
| PHF | Universal female 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 PHF Tandem Toggle Joint PHF401-S Is Used
Dairy filling line rinse zone
On a yoghurt pot filler, the pneumatic drop to each filler head sits in the daily caustic rinse path. The SUS304 stud on the PHF401-S shrugs off wash-down splash where a plain brass stud would dull and pit.
Cylinder hookup inside a robot guard
Feeding the gripper cylinder on a pick-and-place gantry, a straight connector would foul the guard sheet. The PHF401-S turns the 4mm line 90 degrees at the 1/8in port and hugs the casting.
Vacuum tray handling on a bakery depanner
Suction cups lifting baked loaves from tins run on vacuum lines rated to -750 mmHg. The PHF401-S elbows the 4mm vacuum tube down onto the ejector port without kinking the polyurethane run.
Is the Airtac PHF Tandem Toggle Joint PHF401-S the Right Part?
This is the smallest tube size the PHF female elbow offers on a 1/8in thread. One step up is Dia 6 (PHF601-S), which gains bore for shorter fill times on longer runs. Threaded the other way, Dia 4 exists on M5 (PHF4M5-S, gasket-sealed) and 1/8in, but note the 1/4in PHF row starts at Dia 6 - so a 1/4in port with 4mm tube has no single fitting in this ladder; either step the tube to 6mm or bush the port down to 1/8in.
Tube OD must match exactly: a Dia 4 chuck will not grip 3/16in or 1/4in imperial tube. If the port faces a panel wall and you need the fitting to pass through it instead of elbowing off it, compare the PMF bulkhead connector before committing to this shape.
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 PHF Tandem Toggle Joint PHF401-S FAQ
Tube size Dia 4 mm, thread 1/8in PT female. Working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, negative pressure -750 mmHg (10 Torr), operating temperature -20 to +70 C. It takes soft nylon or polyurethane tube only, and construction is a PBT body with SUS304 stud, POM release button and chuck, aluminium-alloy guide, stainless spring gasket and NBR O-ring.
No. On PHF-family parts the stainless variant replaces the stud with SUS304 while the body remains PBT; dimensions, the tube/thread interface and every pressure and temperature rating are identical to the standard grey PHF401. AirTAC publishes no separate stainless rating, so do not expect one - the -S buys corrosion resistance at the stud, nothing else.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard parts are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC One-Touch Fittings
Request a Quote for Airtac PHF Tandem Toggle Joint PHF401-S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.