The AirTAC Airtac PHF Tandem Toggle Joint PHF601D-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.
The PHF601D-S is an AirTAC PHF universal female elbow, the swivel-jointed version of the female elbow family. It joins a Dia 6 mm soft nylon or polyurethane tube to a 1/8 in PT female port, and the universal joint lets you set the outlet at any angle before locking it down, so the tubing leaves the fitting in the direction the machine needs rather than the direction the port faces. The -S suffix means the stud is SUS304 stainless steel; the elbow body remains PBT, so this is a stainless-stud part, not a solid stainless body. Black body finish comes from the D suffix in the code.
This is the resin/brass spec profile, not the metal BP line: working pressure 0-1.0 MPa, vacuum to -750 mmHg, proof pressure 1.5 MPa, and a temperature window of -20 to +70 C. Internally, the tube pushes past a stainless spring gasket and an NBR O-ring while the POM chuck grips it; pressing the release ring frees the tube again without tools. The 1/8 in female thread arrives with sealant already applied, so no tape or dope is needed on the port.
| Model | Airtac PHF Tandem Toggle Joint PHF601D-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.
| 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. |
A 1/8 in PT female port on the valve stack accepts the PHF601D-S, and the swivel joint lets the 6 mm drop to the glue-laydown cylinder exit downward instead of sideways, clearing the guard rail.
The SUS304 stud and black PBT body suit compact analytical equipment where the 1/8 in port sits at an odd angle and the Dia 6 purge tube must route away from the optics housing.
Aim the female elbow on the 1/8 in cross-port so the 6 mm blow-off tube points at the cutting zone, then orient it once and leave it - no re-bending of rigid nylon to fight the port direction.
Dia 6 sits between two real sizes on this series: step down to PHF401D-S for a Dia 4 tube feeding light actuators and sensors, or up to PHF801D-S for a Dia 8 line with noticeably more bore and flow headroom. Note the PHF ladder caps the 1/8 in thread at Dia 8; if your tube is Dia 10 or Dia 12 you must move to a 1/4 in thread on this series. On the thread side, Dia 6 is also offered with an M5x0.8 port (PHF6M5D-S) for small valve and sensor bodies, and with 1/4 in (PHF602D-S) where the port is larger.
Pick a universal elbow over a fixed PL elbow when the port orientation is awkward or the tubing run needs a specific exit angle in a confined guard or bracket. Match the tube exactly: a Dia 6 chuck will not seal on 1/4 in (6.35 mm) tube, and mixing inch and metric sizes here is the most common cause of a slow weep.
Quick checklist
Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. Size: Dia 6 mm tube on a 1/8 in PT female thread with a universal swivel elbow body in black PBT and an SUS304 stud. Applicable tubing is soft nylon or polyurethane.
No. On PHF-series -S parts the threaded stud is SUS304, while the elbow body stays PBT, which is AirTAC's published construction for this family. Pressure, vacuum and temperature ratings are identical to the standard PHF601D, and the dimensions are unchanged, so it is a direct where a corrosion-resistant stud is wanted.
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