FAQ

|3/4/5 Port Solenoid Valves

What is the “direct manual override” body option for VFS and VFR3000/4000/5000/6000 base mounted valves?

The direct manual override type (semi-standard) is a type where the main valve needs to be physically pressed to switch the flow path.
For the standard non-locking push type manual override, the pilot valve is switched by pressing the manual override button, and the main valve is then switched by the pilot air. Therefore, the valve cannot be switched unless pilot air is supplied to the SUP port. However, the direct manual override type features a construction that requires you to physically press the main valve to switch it, so the main valve can be switched even without air pressure.
Note) For the single type, pressing the direct manual override switches the valve, and releasing it returns the valve to its origin position.