Alfa Laval Corporate Ab

Johnny Ebsen

Axel Lund Henriksen

Jens Folkmar Andersen

Jesper Bak Nielsen

An actuator arrangement configured to be controlled by a control unit and to control a flow control arrangement includes a housing, a first valve stem configured to be connected to and control movement of a first valve member of the flow control arrangement, a second valve stem configured to be connected to and control movement of a second valve member of the flow control arrangement, a first electrical motor comprising a first rotor and a first stator, the first rotor being rotatable about the longitudinal axis, a second electrical motor comprising a second rotor and a second stator, the second rotor being rotatable about the longitudinal axis, wherein the first rotor is configured to provide a first movement of the first valve stem and the second rotor is configured to provide a first movement of the second valve stem. A method for moving the first valve stem is also disclosed.

Actuator arrangement and a method for moving a valve member into a cleaning position

Device for monitoring process equipment

Control unit for a valve

Actuator for a valve, comprising a first piston, a first piston rod and a first fluid chamber for enabling movement of the first piston and the first piston rod. The actuator has a second piston, a second piston rod, the second piston rod being coaxially arranged with the first piston rod and radially enclosing at least a part of the first piston rod. A second fluid chamber is arranged for the second piston, for enabling movement of the second piston and the second piston rod. A first fluid channel is arranged in communication with each of the first and the second fluid chambers, for effecting, when fluid is introduced into the first fluid channel, movement of the first piston and the second piston. Also, a valve comprising such actuator is disclosed.

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Kolding, Denmark

Johnny Ebsen