The AirTAC Airtac PHV Finger Valve PHV6A is a genuine finger valve (manual shut-off) for shutting compressed air off by hand at the point of use.
The PHV6A is a manual finger valve, not a speed controller: a quarter turn of the cap opens or closes the line completely, letting a technician isolate a Dia 6 branch for cylinder swaps, jam clearing ormaintenance without touching the main supply. Because it is the A version, it has three ports - when you shut it, the downstream outlet vents to atmosphere, so the actuator and tubing on the far side dump their trapped air instead of staying charged. That makes it safe to work on a machine section while the circuit upstream stays live.
It connects tube to tube, inline, with no threaded port: push a Dia 6 soft nylon or polyurethane line into each end. Notably, AirTAC specifies the PHV with no brass content at all, so it is the pick for copper-free zones - plating lines, electronics assembly and similar environments where copper contamination is unacceptable. Sealing is by NBR, and the valve holds both pressure and vacuum.
| Model | Airtac PHV Finger Valve PHV6A |
|---|---|
| Type | Finger valve (manual shut-off) |
| Series | PHV |
| Adjustment | Quarter-turn knob |
| Orientation | Inline, tube to tube |
| 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.
| PHV | Finger valve (manual shut-off). |
|---|---|
| 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). |
| A / B | A = 3-port (vents the outlet when shut). B = 2-port. |
| D | Black. Blank = grey. |
A 3-port vented isolation point in front of a Dia 6 feed to a sealing-cylinder station, so the fitter can pull the cylinder without bleeding the whole machine air main.
No brass in the wetted parts, so the PHV6A suits a Dia 6 circuit on a PCB clamping or test fixture where copper particles cannot be tolerated near the product.
An inline quarter-turn cut-off on a Dia 6 bench drop feeding pneumatic jigs or air picks, letting the operator dump the downstream air instantly between parts.
Choose the A port version (this PHV6A) whenever someone will put hands or tools on the downstream side: venting the outlet removes trapped pressure from the cylinder and hose, which a 2-port B version cannot do. If you only need to stop flow and are happy leaving the line charged downstream, the PHV6B is the alternative. On sizing, Dia 6 is the smallest bore the PHV family comes in - there is nothing below it, and the next step up is the PHV8A for Dia 8 lines, which passes proportionally more air on the same quarter-turn action.
Mount it where a finger can reach it during changeover, ideally at the inlet of the zone being serviced. Remember it is an isolating valve only: for setting actuator speed, use a PSL, PSS or PTL series speed controller on the same line, as a fully closed speed controller is not a leak-tight shut-off.
Quick checklist
Working pressure 0-1.0 MPa (0-10 kgf/cm2), usable under vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and an operating temperature range of -20 to +70 C. It is sized for Dia 6 soft nylon or polyurethane tube, connects inline tube to tube with no threaded port, and is the 3-port A version whose outlet vents to atmosphere when shut. The construction contains no brass.
The PHV6A is a shut-off valve: a quarter turn isolates the line and, on this A version, vents the downstream outlet. A speed controller such as the PSL only restricts flow in one direction to set actuator speed, and AirTAC states it leaks slightly when fully closed - it must never be relied on to isolate a circuit. Use the PHV6A to make a line safe and a speed controller to control speed.
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