Airtac M5PF Flat Head Push Button Mechanical Valve M5PF11006B
Mechanically actuated · no coil, no pilot airThe AirTAC Airtac M5PF Flat Head Push Button Mechanical Valve M5PF11006B is a genuine 5/2-way flat button type control valve. A flush button, hard to operate by accident. It is an external control, direct-acting valve - the spool is moved mechanically, so there is nothing to wire and no pilot line to plumb. Ports are PT1/8 with a 8.0 mm2 (Cv 0.45) effective area.
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Specifications
| Model | M5PF11006B |
|---|---|
| Valve type | 5/2 way, external control, direct acting |
| Actuation | Flat button type |
| Reset | Automatic (spring) restoration |
| Body series | 100 Series, single control |
| Port size | PT1/8 |
| Effective area | 8.0 mm2 (Cv 0.45) |
| Fluid | Air, filtered by a 40 um element |
|---|---|
| Pressure range | 0 - 1.0 MPa (0 - 145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to +70 C |
| Body material | Aluminium alloy |
| Lubrication | Not required |
| Thread standard | PT (Rc tapered) |
| Spool stroke | 2.0-3.3 mm |
| Actuator stroke | 3.8-5.1 mm at the button |
Sliding-column (spool) construction, so operating force is not affected by working pressure - there is no back-pressure effect. Lubrication is not required, but once the valve has been run on lubricated air it must stay on lubricated air; AirTAC suggests ISO VG32 or equivalent. The control set is engineering plastic and must be operated by hand only - never switch it by striking it with a tool. The exhaust outlet sits on top of the body, so a silencer fits directly.
About the M5PF11006B
The M5PF11006B is a 5/2 way, externally controlled, direct acting valve that is thrown entirely by hand - you press a flat button, and there is no coil, no solenoid and no pilot port anywhere on it. The button sits flush with its collar, so a sleeve or elbow brushing past the panel will not shift the spool; a deliberate press is needed. It is an automatic (spring) restoration valve: release the button and the spool springs back, reversing the cylinder or circuit. The body is the 100 Series single control (110) with a PT1/8 port and an effective area of 8.0 mm2 (Cv 0.45).
Internally it is a sliding-column spool valve, so the force needed to change over is not affected by working pressure - there is no back-pressure effect, and the button feels the same at 0.2 MPa as it does at 1.0 MPa. The exhaust outlet is on top of the body, so a silencer screws straight in without re-plumbing. The control set is engineering plastic, which is rated for manual operation only: press it with a finger, never strike it with a tool. Body mounting and panel mounting are both supported.
Typical applications
Bench-top jig clamp on an electronics assembly fixture
The operator presses the flush button to extend a clamping cylinder while soldering or fitting a harness. Because the button is level with the collar, a sleeve dragged across the fixture cannot drop a clamp mid-task, and the spring retracts it the moment the hand lifts.
Batch-end blow-down on a carton packer
At the end of a production run, an operator holds the flush button to purge product-push cylinders and clear the conveyor pocket before changeover. The automatic return means the air supply to the push circuit is cut the instant the button is released.
Leak-test bench venting
On a pneumatic component leak-test rig, the flush button dumps the test circuit on demand. Flush mounting matters here: an accidental press would vent a part under test, so the button is deliberately harder to trip than a protruding type.
How to choose
If you are weighing a flat button (PF) against the protruding button (PP) or mushroom head (PM), the difference is how easily the valve should be hit. Flush resists accidental operation and suits panels people work close to; PP is easier to find by feel; PM invites a full palm strike. If the valve must hold its position after pressing - a clamped state, an isolated circuit - then none of these are right: step to the manual-restoration Y, HS or PL instead. On body size, this 110 version gives 8.0 mm2 (Cv 0.45) through PT1/8; moving to the 210 body raises that to 9.0 mm2 (Cv 0.50) at 1/8 in or 12.0 mm2 (Cv 0.67) at 1/4 in for larger cylinders.
Respect the published reversal strokes: spool travel 2.0-3.3 mm and total button travel 3.8-5.1 mm. Pressing harder or further than that does not improve anything - AirTAC states that exceeding these limits damages the valve.
Frequently asked questions
It is a 5/2 way, external control, direct acting valve operated mechanically by a flush flat button - no coil and no pilot port. Working pressure is 0-1.0 MPa (0-145 psi), proof pressure 1.5 MPa (215 psi), and media temperature -20 to +70 C with air filtered to 40 um. Port size is PT1/8 with an effective area of 8.0 mm2 (Cv 0.45). The body is aluminium alloy, lubrication is not required, and the spool returns automatically by spring when the button is released.
AirTAC publishes a spool reversal stroke of 2.0-3.3 mm and a total button stroke of 3.8-5.1 mm for this model. Going beyond those figures damages the valve - extra force buys no extra flow. Also note the control set is engineering plastic and approved for manual operation only, so never strike the button with a tool; press it with a finger.