The AirTAC Airtac PHF Tandem Toggle Joint PHF802D-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 PHF802D-S is an AirTAC PHF universal female elbow, a one-touch fitting that joins a Dia 8 mm soft nylon or polyurethane tube to a 1/4in PT female thread. Push the tube into the chuck and the stainless spring gasket and POM grab ring hold it under pressure; press the release ring and the tube frees straight out. Because the female outlet swivels, the elbow can be rotated to any angle after the thread is done up, which is what separates PHF from the fixed PL and PLL elbows.
This is the -S stainless variant with the D black body option. On PHF fittings the -S suffix means the threaded STUD is SUS304; the body itself remains PBT, as on the standard part. Ratings are identical to the grey standard line: 0-1.0 MPa (0-10 kgf/cm2) working, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure, -20 to +70 C. The stainless stud is there for the threads, the point where moisture and wash-down chemicals attack first.
A detail the spec table does not show: the 1/4in row of the PHF range exists only in Dia 6, Dia 8 and Dia 10. There is no Dia 4 or Dia 12 PHF female elbow on this thread, so the 802 code sits in the middle of a deliberately short ladder.
| Model | Airtac PHF Tandem Toggle Joint PHF802D-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. |
On a poultry or dairy wash-down frame, splash sits on the threads for hours per shift. The SUS304 stud on the PHF802D-S resists that attack at the joint while the PBT body shrugs off detergents, and the swivelling outlet lets the air line drop vertically away from the cylinder regardless of port clocking.
Electroplating tanks throw acid mist that corrodes brass threads fast. Mounting the PHF802D-S on the hoist lift cylinders puts the stainless stud into the hostile zone and lets the female outlet aim the Dia 8 feed line back toward the dry side of the cell.
A salt-air hatch-lift cylinder on a workboat deck is a classic corrosion point at the port thread. The universal elbow swivels so the tube can route under the coaming without a second elbow, and the 1/4in PT female thread lands directly on the standard male stud of the cylinder port.
On the 1/4in PHF ladder your neighbours are PHF602 (Dia 6 tube) below and PHF1002 (Dia 10 tube) above. Stepping down to 6 mm buys compactness for light actuation lines; stepping up to 10 mm is the usual move when the run is long or the actuator volume is large, since capacity scales with bore, not with the fitting. Keep the tube OD exact: a Dia 8 chuck will not grip 5/16in or any other near-miss tube.
Choose PHF over PL when the port orientation is awkward, because the female outlet pivots after installation. Choose a female thread when the machine already has a male PT stud on the valve or cylinder port, and wind the joint as you would any PT connection. If the fitting has to pass through a panel instead of landing on a port, PMF or PLM are the shapes to look at instead.
Quick checklist
It is an AirTAC PHF universal female elbow for Dia 8 mm tube with a 1/4in PT female thread, black body, SUS304 stud 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, for soft nylon or polyurethane tubing. Thread standard is PT throughout this catalogue.
No, and it matters when you compare brands. On the PHF series the -S option makes the threaded STUD SUS304; the elbow body and chuck housing stay PBT, same as the standard grey part. Pressure, vacuum and temperature ratings are unchanged. If you need a solid stainless body on a straight connector, that is the PC-S or POC-S family, not this elbow.
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