The AirTAC Airtac PHF Tandem Toggle Joint PHF603D-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 PHF603D-S is an AirTAC PHF universal female elbow in the one-touch range: it joins Dia 6 mm soft nylon or polyurethane tubing to a 3/8" PT female thread. The head is free to orientate on the port, so the hose leaves at whatever angle the machine demands instead of whatever angle the casting allows. Push the tube home and the internal chuck grips it; press the release ring and it lets go for rework or re-routing.
The -S suffix fits a SUS304 stainless steel stud under a black PBT body - on this family the body itself stays PBT, so the stainless is concentrated where the fitting meets the port thread, which is where corrosion usually starts. Ratings are the standard resin-line set: 0-1.0 MPa working, 1.5 MPa proof, -20 to +70 C, and usable down to -750 mmHg vacuum. Do not stretch the temperature figure: at the top of the range the tubing, not the fitting, is what gives way first.
| Model | Airtac PHF Tandem Toggle Joint PHF603D-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 bottling conveyor's periodic caustic rinse, a Dia 6 drop to a gripper cylinder sits in damp, splash-prone air. The SUS304 stud at the port thread resists the corrosion that eats plain brass studs, while the PBT body shrugs off the same wash.
A 3/8" PT female port on a C-frame press cylinder often faces the wrong way for a straight run. The PHF603D-S swivels so the Dia 6 hose leaves sideways, clear of the bolster, and the female thread drops straight onto the existing male port stud.
Retrofitting actuators on packaging machines near salt-laden sea air is where plain brass studs pit and seize. A Dia 6 stainless-stud elbow at the valve manifold outlet keeps the threaded joint serviceable for the next strip-down.
Dia 6 is the smallest tube AirTAC makes on the PHF 3/8" row, so there is nothing to step down to at this thread - the next step up is the PHF803 with its wider Dia 8 bore, which moves more air to the same port but needs the matching tube everywhere downstream. If your port is 1/4" rather than 3/8", the PHF602 carries the same Dia 6 tube on the smaller thread. Tube OD must match exactly: a Dia 6 chuck will not seal on 1/4" (6.35 mm) hose. If the thread side needs to be male instead of female, AirTAC's PH male universal elbow covers the same tube ladder.
Choose the PHF shape over the fixed PL elbow when the approach angle is unknown at design time - the swivelling head lets a fitter square the hose up against a guard or manifold face on the bench, then lock the body down in the chosen position.
Quick checklist
This SKU is a PHF universal female elbow for Dia 6 mm tube on a 3/8" PT female thread, with a SUS304 stainless stud and black PBT body. Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. It accepts soft nylon or polyurethane tubing, gripped one-touch by an internal chuck and released by the release ring.
No. On the PHF family the -S variant puts a SUS304 stainless steel stud at the port thread while the elbow body remains black PBT, and the pressure, vacuum and temperature ratings are identical to the standard version. For the straight PC and POC connectors the body itself is 304 stainless, so if your priority is an all-stainless wetted path, that is where to look - this elbow gives you the corrosion-safe thread junction plus the swivelling head instead.
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