Airtac PHV Hand Valve Connector PHV8AD
The AirTAC Airtac PHV Hand Valve Connector PHV8AD is a genuine finger valve (manual shut-off) for shutting compressed air off by hand at the point of use.
- TypeFinger valve (manual shut-off)
- SeriesPHV
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- Temperature-20 to +70 °C
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PHV Hand Valve Connector PHV8AD
The PHV8AD is a manual finger valve, not a speed controller: a quarter-turn of the thumb-sized cap opens or closes the Dia 8mm line completely. This is the A version, which is the 3-port pattern - when you shut the valve, the downstream outlet vents to atmosphere, so trapped air downstream of the valve bleeds off instead of staying locked in the circuit. The D suffix on the order code means the body is the black variant of the standard grey part.
Unlike most parts in AirTAC's flow-control kit, the PHV contains no brass at all, so it is specified for copper-free installations such as electronics assembly, plating shops and certain food and medical processes where copper contamination matters. Air flows tube to tube through a Dia 8mm bore with no threaded port, and the valve is intended for soft nylon or polyurethane tubing within a working band of 0-1.0 MPa and -20 to +70 C.
Airtac PHV Hand Valve Connector PHV8AD Technical Specifications
| Model | Airtac PHV Hand Valve Connector PHV8AD |
|---|---|
| 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.
Model Code: Airtac PHV Hand Valve Connector PHV8AD
| 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. |
Fitting & Sealing Notes
- check Cut the tube square and clean before pushing it home, or the seal will leak.
- check Push until it stops, then pull back to check the chuck has gripped.
- check To release, press the collet ring fully in and pull the tube out.
- check Threaded parts arrive with sealant on the thread; M5 sizes use a sealing gasket.
- check Match the tube OD exactly - a 6 mm fitting will not hold 1/4" tube.
Where the Airtac PHV Hand Valve Connector PHV8AD Is Used
Packaging machine gripper changeover
Mount the PHV8AD in the Dia 8mm supply line feeding a suction or jaw gripper on a carton-packing line. Closing it vents the outlet port, so the gripper depressurises safely before an operator reaches in to change tooling.
Bench pneumatic test rigs
Lab and QC benches running short Dia 8mm nylon lines use the 3-port action to kill and vent a test circuit between cycles, instead of dumping pressure at the regulator every time.
Screen printing and textile heads
Copper-free construction with no brass suits print and textile shops using copper-sensitive inks or processes; the black Dia 8mm body isolates a squeegee or take-off cylinder for service without draining the whole header.
Is the Airtac PHV Hand Valve Connector PHV8AD the Right Part?
Pick the A version (this PHV8AD) when the machine must depressurise downstream when you stop it - a gripper jaw you need to change, a clamp you want to release pressure from, or a branch you want dead but vented. The B version holds the downstream pressure instead, which suits a gauge or a cylinder that must stay charged. Both use the same quarter-turn cap; only the porting differs.
Within the PHV ladder the Dia 8mm bore sits between Dia 6 below and Dia 10 above. Stepping down to Dia 6 gives a smaller finger valve for light lines; stepping up to Dia 10 carries more flow for larger actuators. There is no threaded PHV in this family, so if you need a threaded port you are in the PSL/PTL speed controller families instead - and remember those are throttle valves, not shut-offs, since they leak slightly fully closed. Fit this valve where an operator can reach it easily, because it is deliberately a hand-operated device.
Quick checklist
- ✓ Tube outside diameter matches exactly
- ✓ Thread size and standard match the port
- ✓ Working pressure within 0 - 1.0 MPa (0 - 10 kgf/cm2)
- ✓ Temperature within -20 to +70 °C
Airtac PHV Hand Valve Connector PHV8AD FAQ
Working pressure is 0-1.0 MPa (0-10 kgf/cm2), proof pressure is 1.5 MPa, and vacuum down to -750 mmHg (10 Torr) is allowed. The temperature range is -20 to +70 C. This is the Dia 8mm, 3-port (A type) finger valve in the black D colour, with tube-to-tube Dia 8mm connections and no threaded port. Tubing is soft nylon or polyurethane.
No. A fully closed speed controller in the PSL/PTL families is not a shut-off by design and weeps slightly, but the PHV8AD is a genuine quarter-turn stop valve - the A porting also vents the downstream side to atmosphere when closed, which a speed controller never does. Use the PHV8AD to isolate a circuit leg, and use a PSL or PTL only to set actuator speed.
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