2014/09 – Subject to change
5
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Valves, manually operated
Key features
Manually operated valves
Manually operated valves are used in
all industrial sectors, as well as in the
commercial trades. They are used to
carry out simple processes such as
clamping or closing safety doors.
Depending on the desired actuation
(pushing, rotating/swivelling or tilt
ing), the valves are either detenting or
non-detenting. The valves are directly
controlled in some cases or are
pneumatically piloted.
Valve functions
Circuit symbol Type Description
Pushbutton valve
VHEM-LT-M32C
K-3-M5
3/2-way valve, monostable
Normally closed
Mechanical spring return
Suitable for vacuum
VHEM-LT-M32U 3/2-way valve, monostable
Normally open
Mechanical spring return
Suitable for vacuum
VHEM-PTCZ-M32U 3/2-way valve, monostable
Normally open
Mechanical spring return
Pneumatically piloted
VHEM-PTCZ-M32C 3/2-way valve, monostable
Normally closed
Mechanical spring return
Pneumatically piloted
VHEM-PTC-M32C 3/2-way valve, monostable
Normally closed
Pneumatically piloted
Mechanical spring return
VHEM-PTC-M32U 3/2-way valve, monostable
Normally open
Pneumatically piloted
Mechanical spring return
K/O-3-PK-3 3/2-way valve, monostable
Normally open/closed
Mechanical spring return
VHEM-P-M52-M 5/2-way valve, monostable
Reverse operation possible
Mechanical spring return
Suitable for vacuum
VHEM-P-M52-E
VHEM-L-M52-E
5/2-way valve, monostable
Reverse operation possible
(External) pneumatic spring return
Suitable for vacuum
VHEM-P-M52-A
VHEM-L-M52-A
5/2-way valve, monostable
Reverse operation not possible
(Internal) pneumatic spring return
VHEM-PA-B52 5/2-way valve, bistable
Detenting actuation
Reverse operation possible
Suitable for vacuum