Airtac M5PP Poppet Push Button Mechanical Valve M5PP21008B
Mechanically actuated · no coil, no pilot airThe AirTAC Airtac M5PP Poppet Push Button Mechanical Valve M5PP21008B is a genuine 5/2-way protruding button type control valve. A raised button - quick to find, still guarded against a full palm strike. 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 PT1/4 with a 12.0 mm2 (Cv 0.67) effective area.
$30.93 $35.38Save 12%- 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.
Specifications
| Model | M5PP21008B |
|---|---|
| Valve type | 5/2 way, external control, direct acting |
| Actuation | Protruding button type |
| Reset | Automatic (spring) restoration |
| Body series | 200 Series, single control |
| Port size | PT1/4 |
| Effective area | 12.0 mm2 (Cv 0.67) |
| Button colour | Black |
| 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 M5PP21008B
The M5PP21008B is a 5/2-way external control, direct acting valve with NO coil and NO pilot port - the spool is thrown purely by a raised protruding button pressed by a finger, and it springs back the instant you lift off. The PP actuator stands proud of the panel so it is easy to find and hit without looking, and this unit carries a black button on the 200-series (210) single-control body with a 1/4in PT port. Flow is the largest in the common-type family: an effective area of 12.0 mm2, Cv 0.67.
Inside sits a sliding-column spool, so the force needed to change over does not rise with working pressure - there is no back-pressure effect and the switching feel stays the same from 0 to 1.0 MPa. The exhaust outlet is on top of the aluminium body, so a silencer screws straight on without elbow fittings. Body mounting and panel mounting are both supported. Note the control set is engineering plastic: it is rated for hand operation only, and striking it with a tool is forbidden by AirTAC.
Typical applications
Cycle start on a benchtop tube-bending fixture
The operator taps the raised black button to throw the 5/2 spool and extend the bend cylinder; lifting the thumb lets the spring return vent the cylinder back, so every bend cycle starts from a known retracted state with no electrical supply at the bench.
Manual jog on a small pneumatic assembly press
Press and hold the protruding button to run the press ram down for a press-fit or riveting operation, release to retract. Because the changeover force does not vary with air pressure, the button feels identical on a cold Monday morning and a hot Friday afternoon.
Divert actuation at a pallet conveyor transfer station
A protruding button mounted at the transfer point lets an operator momentarily throw a diverter cylinder to redirect a pallet lane, the spring return bringing the valve - and the diverter - straight back to the through-path the moment the button is released.
How to choose
Your real choice here is between the three button styles. The flat PF button sits flush and resists accidental operation; this protruding PP button stands slightly above the surface so an operator can hit it quickly and positively; the mushroom PM head gives the largest target of all. If the valve must HOLD its position after pressing instead of springing back, step sideways to the PL latching type (press to latch, twist to release, red only) - PP is automatic spring return by design.
On body and port: this 210 body at 1/4in delivers Cv 0.67, against Cv 0.50 for the same body at 1/8in and Cv 0.45 for the smaller 110 body, so size the port to the cylinder you are driving. Mind the published reversal stroke before you design the bracket: spool stroke 2.0-3.3 mm, total button travel 3.8-5.1 mm. Exceeding these figures damages the valve - AirTAC states this explicitly - so arrange a hard stop behind the button, never through it.
Frequently asked questions
It is a 5/2-way external control, direct acting, mechanically actuated valve (protruding button, black, spring return) with a 1/4in PT port. Working pressure 0-1.0 MPa (0-145 psi), proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, media air filtered by a 40 um element. Effective area 12.0 mm2, Cv 0.67 - the highest flow of any common-type M5 body. Body is aluminium alloy, lubrication is not required, and the valve suits body or panel mounting.
AirTAC publishes a spool stroke of 2.0-3.3 mm and a total button travel of 3.8-5.1 mm for this model. These are hard limits: travel beyond them damages the valve, bending the button mechanism and preventing the spool from seating, which shows up as leakage or a valve that will not change over. Design your panel or bracket so the operator cannot bottom the button out past 5.1 mm, and remember the plastic control set is hand-operation only - striking it with a tool is forbidden.