The AirTAC Airtac PHF Tandem Toggle Joint PHF801 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 AirTAC PHF801 is a universal female elbow one-touch fitting: Dia 8 mm soft nylon or polyurethane tube on one leg, a 1/8 inch PT female thread on the other. The universal joint lets you clock the threaded leg independently of the tube leg, so the elbow can meet a port at the angle the machine demands instead of the angle the pipework dictates.
Installation is a push: seat the tube fully into the chuck and the stainless spring gasket plus NBR O-ring grip and seal it; press the POM release ring to free it. This is the resin/brass profile, not the metal line: 0 to 1.0 MPa working pressure, -20 to +70 C, grey PBT body with aluminium-alloy guide.
| Model | Airtac PHF Tandem Toggle Joint PHF801 |
|---|---|
| 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. |
Tool-changer pot clamp cylinders sit behind sheet-metal shrouds on machining centres; a female elbow lets the pre-tapped 1/8in port face up while the Dia 8 tube routes down along the saddle, clear of the tool path.
On rotary indexing tables the air feed turns with the table, so the elbow's universal joint absorbs the clocking error between the fixed pipework axis and the rotating cylinder port without side-loading the seal.
Dough-divider ram cylinders are washed down nightly and packed tight under the hopper; a swivelling female elbow at the port lets the fitter aim the Dia 8 tube away from the flour chute and strip it for cleaning.
Step down to PHF601 (Dia 6, same 1/8 inch thread) for lighter lines feeding solenoid valves or small grippers; the bore drops but the port thread stays the same. Dia 8 is the ceiling on the PHF 1/8 inch row - there is no Dia 10 or 12 on this thread. To carry more air you move up to PHF1002, which keeps the female-elbow shape but steps the port to 1/4 inch. Also consider the PHF female thread where the port is already tapped female and a male-stud elbow like the PL would need a nipple to bridge it.
Tube OD must match exactly: the chuck in this fitting is cut for Dia 8 only, so a 5/16 inch or Dia 6 tube will neither seal nor release correctly. Match the 1/8 PT taper to a tapped PT port; do not substitute a parallel G port without a sealing washer arrangement.
Quick checklist
This is the resin/brass one-touch profile: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. The part joins Dia 8 mm soft nylon or polyurethane tube to a 1/8 inch PT female thread. Tube is the standard connection; colour is grey as standard, and capacity scales with the 8 mm bore rather than any published flow figure.
No. AirTAC's one-touch chucks are machined for one tube OD each, and this fitting takes Dia 8 only - a sleeve does not restore the seal or the release action. Use PHF601 for Dia 6 on the same 1/8 inch thread, or move to a Dia 10 female elbow on a 1/4 inch port. Note that Dia 8 is the largest tube offered on PHF with a 1/8 inch thread.
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