Schneider Forta MG900 SR Valve Actuator

MG900 SR is a linear electro-mechanical actuator with spring return operation for the control of two-way and three-way plug valves in:

• Hot water systems
• Heating and Cooling systems
• Air handling systems

MG900 SR family of actuators utilise brushless DC motors and a high resolution control board allow a very fine fluid control in globe valves. The working range and end point switches of the actuator are adjusted automatically to the stroke of the valve. When driven electrically, the firmware of the actuator calibrates a consistent running time regardless of the valve stroke.

Upon power failure, the mechanical spring return mechanism drives the motor in turn generating power to the board to control the spring return braking speed, avoiding mechanical stress and system water hammer.

All actuators can be configured for either a 3 point increase/decrease signal or various modulating control signals including sequencing. The U-Bolt connection allows quick and easy direct mounting onto the majority of venta valves without any mounting kit or special tools.