The design of GPSA Electric Control Valve Actuators available from Rotork Australia incorporates a self locking drive system to hold in the last position and prevent back driving up to the thrust rating. Manual override also comes as standard with these valve actuators.
The GPSA electric control valve actuator is a low thrust, high precision linear actuator. It has been designed specifically for use in chemical dosing as well as other process control applications where continuous, unrestricted modulation and tight accuracy are a requirement.
They have a thrust range up to 890 N, a stroke distance up to 35 mm and a temperature range between -20 to +65 degrees celsius. Automatic thrust limiting is an available option and HART, Profibus and Foundation Fieldbus are also available with these valve actuators.
Integral PI (Proportional and Integral) control, adjustable speed, output characterisation and password protection are just some of the innovative features of this product.
These devices represent cutting edge electrical and mechanical technology. They demonstrate unrivalled control valve automation, combined with advanced, non-intrusive calibration and valve diagnostic technologies.