
Genuine AirTAC mechanical valve, order code CM3PF08G from the CM3 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
Built on an aluminum-alloy body, the AirTAC CM3PF08G is a 3/2-way mechanical valve with PT1/4 ports and the flush push button head (PF) in green. It is worked by hand, as a simple control for an air circuit at the machine or on a panel. At the PT1/4 port the effective area is 15.0 mm2 (Cv 0.84).
It is a poppet valve, so it seals tightly and switches cleanly. It runs on air filtered to 40 um from 0 to 1.0 MPa (0-145 psi), with 1.5 MPa (215 psi) proof pressure, at -20 to +70 C. No lubrication is needed. The ports are PT thread, the standard version.
| Order code | CM3PF08G |
|---|---|
| Product | Mechanical Valve |
| Head | Flush push button (PF) |
| Port | 1/4" (08) |
| Color and thread | Green · PT thread |
| Function | 3/2-way (HD: 5/3-way) |
|---|---|
| Actuation | External control |
| Ports | M5 · PT1/8 · PT1/4 |
| Effective area | M5 2.0 mm² (Cv 0.11) · 1/8" 2.5 mm² (Cv 0.14) · 1/4" 15.0 mm² (Cv 0.84) |
| Fluid | Air (filtered by 40 µm element) |
| Operating pressure | 0 – 1.0 MPa (0 – 145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to +70 °C |
| Lubrication | Not required |
| Body | Aluminum alloy |
Source: AirTAC Products Catalog 2026A (PDF01-P0156), CM3 series specifications and ordering code.
This code uses the 1/4 port (15.0 mm2, Cv 0.84); the same PF head also comes with M5 (05, Cv 0.11) and 1/8 (06, Cv 0.14). A larger port passes more air when the valve drives a cylinder or a long pilot line directly. The color letter after the port is G (green) here; CM3PF08R red, CM3PF08B black and CM3PF08Y yellow are the other colors of this head. For BSPP or NPT threads order CM3PF08GG or CM3PF08GT. Other hand-operated heads: rocker lever (Y), turn-release latching button (PL), extended push button (PP), mushroom push button (PM), mushroom button with guard (PMS), large mushroom button with guard (PMX), selector switch (HS) and two-way selector switch (HD).
A push button starts an air cycle at the operator panel.
Air buttons work where electric switches are not wanted, with no wiring in the panel. The PT1/4 port gives Cv 0.84.
Sends a pilot signal into an air logic circuit when pressed.
3/2-way mechanical valve, flush push button head (PF), green; PT1/4 ports, effective area 15.0 mm2 (Cv 0.84); 0 to 1.0 MPa (0-145 psi), proof 1.5 MPa (215 psi); -20 to +70 C; air filtered to 40 um; aluminum-alloy body.
It is the color letter of the flush push button: G = green. Only the push-button and selector heads take a color letter (R red, G green, B black, Y yellow).