The AirTAC Airtac PHF Tandem Toggle Joint PHF803 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 PHF803 is an AirTAC PHF universal female elbow, a one-touch fitting that joins Dia 8 mm soft nylon or polyurethane tube to a 3/8" PT female threaded port. Push the tube straight into the chuck and the stainless spring gasket and grip ring hold it against the POM seal; press the release ring and the tube slides straight back out. The universal joint lets you set the outlet angle after the thread is tightened, so the elbow can be squared up to a wall or guard rather than forced.
This is the resin and brass one-touch profile, not the metal BP line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa and a service temperature of -20 to +70 C. The 3/8" female port arrives with sealant already on the thread, so no extra tape or paste is needed before screwing it onto the mating male stud.
| Model | Airtac PHF Tandem Toggle Joint PHF803 |
|---|---|
| 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. |
On a 3/8" PT outlet of a pneumatic manifold feeding a packaging line, the swivelling female thread lets the elbow sit square to the manifold face before 8 mm tube runs out to the actuators.
A 90-degree exit at the rear port of a guide cylinder inside a confined guarding frame keeps 8 mm tubing clear of the moving slide, and the universal angle compensates for port clocking.
The -750 mmHg vacuum rating suits the suction side of a carton-forming ejector block, where the 3/8" female thread lands on the ejector's male stud and the angled body saves a separate elbow.
On the PHF ladder at 3/8" thread, the made sizes are Dia 6, 8, 10 and 12. One step down, the PHF603 feeds smaller 6 mm actuators; one step up, the PHF1003 carries more flow into 10 mm lines - going up mainly buys bore, so stay at Dia 8 if your tubing and cylinder ports are already 8 mm. The female thread is the other half of the decision: check the male stud on your valve, manifold or cylinder is genuinely 3/8" PT, because a 1/4" stud will not seal into it. Tube OD must match exactly - this fitting grips 8 mm tube only and will not hold 1/4" (6.35 mm) or 10 mm tube.
Choose the PHF shape over a straight PC connector when the tube has to leave a port at 90 degrees and the direction is not fixed at install time. If the port faces you instead of sideways, the PL male elbow family is the alternative; if you need to pass through a panel, look at bulkhead types instead.
Quick checklist
Tube size Dia 8 mm, thread 3/8" PT female. 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. It takes soft nylon or polyurethane tube only, and the 3/8" port ships with thread sealant applied.
Yes. That is what the universal PHF design is for: tighten the 3/8" female thread onto the male stud first, then set the elbow body to the angle you need before pushing the 8 mm tube in. Note the thread standard is PT throughout this catalogue - there is no G or NPT variant of this part.
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