Valve actuators
Actuators for characterised control valves, zone and globe valves and butterfly valves in heating, cooling and process applications. Rotary actuators fit onto the valve via an adapter without tools; linear actuators are screwed onto the valve.
Types of valve actuators
Rotary valve actuators
CQ for zone valves, LR, NR, SR and GR for characterised control valves, PR for butterfly valves. LRF, NRF and SRF versions with spring return.
Globe valve actuators
LV, NV, SV, EV and AVK for H.. globe valves with 15 to 50 mm stroke, NVK and AVK versions with SuperCap fail-safe.
Key valve actuator parameters
Rotary or linear
Ball and butterfly valves need a rotary actuator, H.. globe valves a linear one.
Actuator series
The valve parameters list which actuator series fit it.
Signal
Open/close, 3-point, 2…10 V or MP-Bus, BACnet and Modbus.
Fail-safe function
A spring or SuperCap closes the valve on power failure – for example on an air heater.
