The AirTAC Airtac PHF Tandem Toggle Joint PHF6M5D 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 PHF6M5D is an AirTAC PHF universal female elbow in the black D colour option. On PHF parts the D suffix changes the whole body colour, not just the release button. One side takes Dia 6 mm soft nylon or polyurethane tube; the other carries an M5x0.8 female thread that swivels on the elbow axis, so the fitting can be screwed in first and the tube leg swung to whatever angle the routing needs.
This is a resin one-touch part: working pressure 0-1.0 MPa, vacuum to -750 mmHg, proof pressure 1.5 MPa, temperature -20 to +70 C. To connect, push the tube straight home and the stainless spring gasket and chuck grip it; press the release ring to free it. Unlike the larger PT threads in this catalogue, the M5 size does not arrive with thread sealant - it seals through a dedicated sealing gasket, so no tape or paste belongs on it.
| Model | Airtac PHF Tandem Toggle Joint PHF6M5D |
|---|---|
| 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. |
Compact valve manifolds on small automation cells commonly carry M5 ports. This elbow screws straight in with its gasket seal and the swivel lets the 6 mm drop leg to the actuator run cleanly down the side of the manifold.
On a small two-finger gripper or guided cylinder tucked behind a machine guard, thread access is often tighter than tube access. Fit the female thread first, then swing the tube leg clear of the guard before pushing the 6 mm tube home.
Rated to -750 mmHg, this elbow suits the short 6 mm vacuum line from a suction cup to an M5 port on an electronics benchtop placement or test head, where the swivel absorbs alignment error between the cup bracket and the valve.
Within the PHF M5 row the ladder has only two rungs: Dia 4 and Dia 6. This part is the top of that ladder, so the only smaller sibling is the PHF4M5 for 4 mm tube. To go above Dia 6 you change thread, not tube: the next step is PHF601, a 1/8 in female elbow. Choose M5 when the valve or manifold port is already tapped M5 - adapters just add a leak path.
A universal female elbow earns its place when a rigid fixed-angle elbow would leave the tube leg pointing the wrong way after the thread is tightened. Remember tube OD must match exactly: a Dia 6 chuck will not hold 1/4 in (6.35 mm) tube even though the sizes look close.
Quick checklist
AirTAC PHF universal female elbow, Dia 6 mm tube one-touch connection with an M5x0.8 female swivel thread, black body. Working pressure 0-1.0 MPa, negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. Tube must be soft nylon or polyurethane of exactly 6 mm OD.
No. M5 sizes in this series seal through a sealing gasket, not through tape on the thread. Wrapped tape can preload the joint and hold the sealing face slightly open, causing a leak. Hand-tighten the M5 seat so the gasket compresses evenly, and rely on the swivel action rather than the thread to set the tube direction.
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