The AirTAC Airtac PHF Tandem Toggle Joint PHF601D 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 is an AirTAC universal female elbow in the resin one-touch family. It joins a Dia 6 mm soft nylon or polyurethane tube to a 1/8 in PT female thread, turning the air path through 90 degrees. The word universal is the point: the threaded half swivels relative to the elbow body, so you can rotate the fitting until the female port faces exactly the way your hose or adapter needs, then lock it against the mating male thread.
Connection is push-to-connect: push the Dia 6 tube fully home and the internal stainless spring gasket and chuck grip it for pressure-tight service; press the POM release ring to free it. This is the resin spec profile, not the metal BP line: working pressure 0-1.0 MPa, negative pressure to -750 mmHg, proof pressure 1.5 MPa, temperature -20 to +70 C. The body is PBT with a brass stud, and because this is a D-suffix part the whole body is moulded in black rather than the standard grey.
| Model | Airtac PHF Tandem Toggle Joint PHF601D |
|---|---|
| Type | Universal female elbow |
| Series | PHF |
| Connection | Push-in one-touch |
| 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. 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. |
A compact ISO cylinder on a packaging machine sits at an awkward angle behind the guarding. The PHF601D female elbow threads onto the 1/8 in port, then the body swivels so the Dia 6 drop to the valve manifold runs cleanly downward instead of twisting the tube.
Prototype test stands are reconfigured constantly. The one-touch release lets a technician pull the Dia 6 tube in seconds, and the black D-suffix body hides staining from dyes, coolants and process fluids used in fluid-handling benches.
Weldment and assembly jigs often position clamp cylinders where the air port faces into the fixture wall. A 6 mm tube on a swivelling female elbow lets the installer point the connection outward and route tubing along the jig frame without kinking.
On the PHF 1/8 in row the ladder runs Dia 4, 6 and 8 only. Stepping down to PHF401D trades flow capacity for a slimmer profile on light-duty actuators; stepping up to PHF801D gives a wider bore for higher-demand branches. If you need Dia 10 on this shape, a 1/8 in port will not carry it in this series - move to the 3/8 in thread row, where Dia 10 is listed. Match the 1/8 in female thread to the mating male stud: PT threads seal with tape or sealant on the male partner, since this fitting arrives as a plain female port. If your port already has a male thread and no swivel is needed, the fixed PL male elbow is the simpler alternative; use this PHF when orientation after installation matters. And remember tube OD must match exactly - a Dia 6 chuck will not seal on 1/4 in or 8 mm tube.
Quick checklist
Tube size Dia 6 mm, thread 1/8 in PT female, elbow body in black (D suffix). Working pressure 0-1.0 MPa (0-10 kgf/cm2), usable under negative pressure to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. Rated for soft nylon or polyurethane tubing on the resin one-touch profile.
On the PC and POC connectors the D changes only the release button, but on the PHF series it moulds the entire body in black. The dimensions, tube ladder and pressure ratings are identical to the grey PHF601 - it is a colour and appearance option, useful where a uniform dark machine interior is wanted or grey fittings would show grime.
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