Airtac M5PM Mushroom Push Button Type Mechanical Valve M5PM11006BG
Mechanically actuated · no coil, no pilot airThe AirTAC Airtac M5PM Mushroom Push Button Type Mechanical Valve M5PM11006BG is a genuine 5/2-way mushroom head type control valve. A large mushroom head that can be hit with a palm without looking for it. 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 | M5PM11006BG |
|---|---|
| Valve type | 5/2 way, external control, direct acting |
| Actuation | Mushroom head 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 | G (BSPP parallel) |
| 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 M5PM11006BG
The M5PM11006BG is a 5/2-way external control, direct acting valve with no coil, no pilot port and no wiring at all: a black mushroom head on a 100 Series (110) body is struck with the palm, and the spool shifts mechanically. Release the head and an internal spring snaps the valve back to its original position, so every palm press produces one full forward-and-return cycle of the connected cylinder.
This 110-body version carries G (BSPP) parallel threads on its 1/8in ports and flows through an 8.0 mm2 effective orifice (Cv 0.45). Because the sliding-column spool is mechanically thrown, the changeover force is independent of working pressure - there is no back-pressure effect to fight, so the head feels the same whether the line is idle or at full 1.0 MPa. The exhaust outlet sits on top of the body, so a silencer screws straight on and points noise away from the operator. The mushroom control set is engineering plastic and is strictly a hand-operated part: striking it with a hammer, jig or machine carriage is forbidden and will destroy it. The body can be screwed down directly or panel mounted, and matching control sets are available as spares so a worn head can be replaced without swapping the whole valve.
Typical applications
Bench press cycle start
On a small pneumatic clinching or marking press at an electronics assembly bench, the operator palms the mushroom head to fire the downstroke cylinder and simply lets go - the spring return sends the ram back up the moment the hand lifts.
Drilling jig clamp engage
A machinist loading a housing into a drilling fixture strikes the head once to extend a swing clamp cylinder, drills the part, then releases the head so the spring returns the clamp and the part lifts free.
Carton pusher jog station
On a semi-automatic carton packing bench, a palm hit on the mushroom head jogs the pusher cylinder to square up a misaligned box; because it is spring return, the pusher can never be left extended across the lane.
How to choose
The head you pick decides how forgiving the valve is under an operator's hand. The flat PF button resists accidental bumps and must be found deliberately; the raised PP button is easier to locate without looking; this PM mushroom head is the easiest of the three to hit - a full palm strike works even with gloves on or eyes on the workpiece. If the machine must HOLD a state after the hand leaves, none of these are right: step to the Y lever, HS selector or PL latching type instead, which restore manually rather than by spring.
Body and flow: this 110 body gives 8.0 mm2 (Cv 0.45) at 1/8in. Moving to the 210 body at the same 1/8in port raises that to 9.0 mm2 (Cv 0.50), and the 210 body at 1/4in reaches 12.0 mm2 (Cv 0.67) - step up when the cylinder is large enough that retraction feels slow. Do not over-travel the head: the published reversal limits for this model are 2.0-3.3 mm of spool stroke and 3.8-5.1 mm of button stroke, and AirTAC states explicitly that exceeding these figures damages the valve, so mount it so the palm cannot drive the button past bottom.
Frequently asked questions
It is a 5/2-way external control, direct acting, mechanically actuated valve with a black mushroom head on a 110 body and G1/8 threaded ports. Operating pressure is 0-1.0 MPa (0-145 psi), proof pressure 1.5 MPa (215 psi), and the temperature range is -20 to +70 C. The effective orifice area is 8.0 mm2 (Cv 0.45). The medium is air filtered by a 40 um element, the body is aluminium alloy, and lubrication is not required - though if lubricated air is used, stay with the same grade (AirTAC suggests ISO VG32) for the life of the valve.
The published reversal stroke for this model is 2.0-3.3 mm at the spool and 3.8-5.1 mm at the button. These are limits, not targets: AirTAC states explicitly that travel beyond them damages the valve. Mount the valve so the palm or fixture naturally bottoms out at or just past full button stroke, and never drive the engineering plastic head with a hammer, tool or moving machine part - it is designed for hand operation only.