When choosing an electric actuator valve, several important factors should be considered to ensure the optimal selection for your specific application. By taking these factors into account, you can make an informed decision and ensure that the chosen actuator valve meets your requirements. Let’s expand on these factors:
1. Performance
When selecting an electric actuator, it is crucial to carefully consider the specific performance requirements of your application.
Force, Speed, & Accuracy
Determine the required torque output of the actuator to meet the demands of your application. Assess the desired speed at which the valve needs to operate. Additionally, evaluate the level of accuracy or precision needed for positioning or control tasks.
Environment & Operating Conditions
Evaluate the environmental conditions, such as the presence of hazardous or corrosive substances, dust, or moisture. If the actuator will be placed in a hazardous ‘zoned’ area additional certification such as ATEX will be needed. Take into consideration the operating temperature range in which the actuator will be used for both the line media and surrounding area’s ambient temperature It is essential to choose one that can withstand the expected temperature extremes. Consider the duty cycle or how often the actuator will be operating, as some actuators may not be suitable for continuous use.
Fail-Safe & Power Loss Considerations
Determine the fail condition of the actuator valve in case of power loss. Some electric actuators stop immediately when power is lost, while others can be equipped with features that move them to a predetermined position or perform a specific action upon power loss. Evaluate if a fail-safe mechanism is necessary for your application.
2. Power & Control Requirements
Another crucial factor to consider when choosing an electric actuator is the power and control requirements. You need to determine the voltage and frequency of the power supply available in your application. This information is crucial to ensure compatibility and proper functioning of the actuator. Next, consider the type of control signal required for the actuator. Determine whether you need an analogue or digital control signal, depending on the control system used in your application. Additionally, identify if a communication protocol needs to be supported by the.
Assess whether the actuator valve needs to be compatible with existing equipment or software. If you are integrating the actuator into an existing system, ensure that it can seamlessly work with the other components without any compatibility issues. Additionally, consider any specific power-related accessories or features that may be required. These could include additional limit switches, feedback devices for position sensing, or heaters for operation in extreme temperatures. Carefully evaluate the available options and choose the accessories that best suit your application’s needs.
Lastly, be mindful of the wiring and installation requirements. Most electric actuators are wired on-site for simple on/off switching. However, some special function valves allow for modulation control based on signals such as 4-20mA or advanced communication protocols over a network.
3. Cost & Maintenance
When choosing electric actuators, it’s crucial to consider the cost and maintenance requirements. Evaluate both the upfront and long-term costs of ownership. While electric actuator valves may have a higher initial cost compared to pneumatic actuators, consider the benefits they offer, such as the “plug and play” nature that eliminates the need for costly pipework and a compressed air source. Assess the actuator’s maintenance and repair costs over its lifespan, along with its reliability and expected maintenance requirements. Look for availability of spare parts and technical support. Consider the ease of installation and operation, as a user-friendly actuator can reduce time and costs. Lastly, evaluate the actuator’s overall lifespan, reliability, and durability.
Electric Actuators From AC Valve Alliance
Our company provides an extensive selection of actuators suitable for diverse industries and applications. By maintaining close partnerships with our suppliers, we ensure prompt availability of pneumatic, hydraulic, and electric actuators either from our stock or with short lead times. Our stock includes Bernard Controls electric actuators, and our ACE Partner status with AUMA strengthens our presence in the electric automation sector. Additionally, our longstanding relationships with Dresser RCS and Asahi further enhance our product offerings. Get in touch with us today to learn more about how we can assist you in fulfilling your actuator valve requirements, whether through supply or manufacturing.
