Valve function?

2/2 closed, monostable
2×3/2 closed, monostable
2×3/2 open/closed, monostable
3/2 bistable
3/2 closed, monostable
3/2 open, monostable
3/2 open/closed, monostable
5/2 bistable
5/2 bistable-dominant
5/2 monostable
5/3 closed
5/3 exhausted
5/3 pressurised
One-way flow control function
One-way flow control function for exhaust air
closed