The AirTAC Airtac PHV Finger Valve PHV6B is a genuine finger valve (manual shut-off) for shutting compressed air off by hand at the point of use.
The PHV6B is a finger-operated quarter-turn valve, not a speed controller: turn the lever one way and Dia 6mm soft nylon or polyurethane tubing passes through, turn it the other way and flow stops. It is the only part in the AirTAC valve kit you may treat as a true shut-off, because it seals the passage instead of throttling it. The B code means this is a 2-port version, so the downstream line holds its trapped pressure when the valve is closed rather than venting it to atmosphere.
Construction is all plastic and stainless-adjacent metals with no brass anywhere in the body or internals, which suits labs, plating shops and electronics assembly where copper contamination is a concern. It splices directly into a 6mm tube run with no threaded ports, and the smallest PHV in the catalogue starts here at Dia 6, so this is the entry size of the family.
| Model | Airtac PHV Finger Valve PHV6B |
|---|---|
| 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. |
On a glue or reagent dispensing bench running 6mm polyurethane drops, a quarter turn of the PHV6B cuts air to the dispenser head while the operator refills or clears a nozzle, and the copper-free body suits chemically active fume environments.
During squeegee and stencil changes on a bench solder-paste printer, closing the PHV6B in the 6mm supply line to the board-clamp cylinder guarantees the clamp cannot drift while hands are inside the fixture.
A maintenance tech reaching into the vacuum and flap-folding station of a small carton erector shuts the PHV6B feeding the Dia 6mm hold-down circuit first, then bleeds the trapped air through the actuator's flow controller before service.
PHV6B sits at the bottom of the PHV ladder: there is no Dia 4 finger valve, so Dia 6 is the smallest available. Step up one size to the PHV8B for 8mm lines, or keep the 2-port layout and move to PHV6A if your technicians need the downstream air vented at the valve when it is switched off. Because B does not vent, fit a flow controller or exhaust at the actuator to release trapped air before anyone works on the tool.
Place the valve where a hand can reach it without tools - immediately before a bench device, a fixture or a machine sub-circuit - so an operator can isolate air in a second.
Quick checklist
It is a 2-port finger valve for Dia 6mm soft nylon or polyurethane tubing, inline tube-to-tube with no threaded port. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), it tolerates vacuum down to -750 mmHg (10 Torr), proof pressure is 1.5 MPa and the operating temperature range is -20 to +70 C. The B version blocks flow without venting the downstream line, and the construction contains no brass.
Both are Dia 6mm finger valves, but the A version has three ports: when you shut it, the downstream line vents to atmosphere. The 6B has two ports, so downstream pressure stays trapped. Choose the B if trapped pressure is harmless or useful (for example keeping a vacuum cup seated); choose the A if a technician must see the line dump before touching the machine.
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