Product Overview: “AOX-L” series direct stroke electric actuators are compact, provide hand automatic clutching and excellent weather and vibration resistance. When the actuator is powered off, the self-locking transmission mechanism ensures that the valve position remains unchanged. It is suitable for the switching and regulating of control valves with linear action, such as gate valves, globe valves, regulating valves, etc. It is widely used in various industries such as petroleum, chemical, water treatment, shipping, paper making, power stations, heating and building automatic control, etc.
Control Functions
AOX actuators can be integrated into any automation system, and it is advisable to choose an actuator with non-intrusive integrated functions during the product selection phase. This saves a lot of time in project planning with regards to installation and documentation required to select external controls. AOX Actuators offers a wide range of products, so customers can choose the best solution for their needs.
Intelligent Type (ICU)
The ICU control system has comprehensive configuration capabilities for all actuator control functions and supports many different fieldbus controls.
LCD display
• Digital display of opening percentage, accurate to 0.1 %
• Valve position can still be displayed locally when the power is off (optional)
• Fault self-diagnosis function display, such as: valve position error, torque overload, motor overheating, etc.
Basic Control Methods
According to EN 15714-2 standard, to meet different application conditions and designs, there are three basic control methods as follows :
Type I On-Off type
The actuator drives the valve from fully open to fully closed or fully closed to fully open.
Type II Modulating
The actuator sometimes needs to drive the valve to any position (fully open, midway position and fully closed).
Type III Continuous Modulating Type
The actuator frequently drives the valve to any position between fully open and fully closed. For continuously adjustable actuators, the number of starts allowed and the load conditions are additionally referenced to the characteristics. The on-off type or modulating type is selected according to the different mechanical loads of the actuator. Therefore, each actuator type can be used in various operating modes.
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KV Controls – a leader in offering superior valves solutions to Industries such as Chemical, Petro-chemical, Refining, Mining & Minerals, Pulp & Paper, Sugar, Power generation and Hydrogen. Our Know-how in applying Control & Isolation valves technology adds value to our client’s operation, lowering cost of ownership. KV Controls mission is world class prompt service with business integrity. Our Safety Management System is accredited (certified) to ISO 45001:2018 Our Main-Office is situated in Naledi Industrial Park, Sasolburg, South Africa with other offices in Port Elizabeth (EC) and Richards Bay (KZN). We have a network of distributors throughout South Africa and neighbouring countries ensuring support on your doorstep.
