The 4F is a pilot operated 5-port master valve driven by a pneumatic signal, used as a single unit or on a manifold. It comes in sizes 4F0 to 4F7 and drives cylinders with bore sizes from ø10 to ø250.
| Valve Structure | Pilot operated soft spool valve |
| Actuation Type | Pneumatic pilot (switched by pilot signal pressure) |
| Working Fluid | Compressed air |
| Maximum Working Pressure | 1.0 MPa |
| Main Pressure Range | 0.15 to 1.0 MPa (2-position single) / 0 to 1.0 MPa (2-position double, 3-position) |
| Ambient Operating Temperature | -10 to 60 °C (no freezing) |
| Fluid Temperature | 5 to 60 °C |
| Lubrication | Not required |
| Vibration Resistance | 50 m/s² or less |
| Shock Resistance | 300 m/s² or less |
| Number of Positions | 2-position single and double, 3-position all ports closed, A/B/R connection, P/A/B connection |
| Port Size | M5, Rp1/8 (4F0) to Rc3/4, Rc1 (4F7) |
| Pilot Port | Rc1/8 |
| Applicable Cylinder Bore | ø10 to ø250 |