Tech Theory: Technical…Practical… Interesting Automation Industrial Solutions
At DELCO, we understand the importance of customer satisfaction and strive to meet the unique needs of every client. As a reliable valve supplier, we are committed to providing excellent customer service and high-quality products to ensure optimal performance and longevity. By choosing DELCO as your trusted control air supplier, you can benefit from customized valve assemblies designed specifically to meet your requirements, enhancing efficiency and reducing downtime.
How to Distinguish Between Solenoid Valve and Electric Valve
Electric valves and solenoid valves are common in industrial applications. While solenoid valves are technically a type of electric valve, we typically distinguish between them. Here are their main differences.
Table of contents
What is a Solenoid Valve?
A solenoid valve uses electromagnetic force to control media and is suitable for applications like pneumatic and hydraulic systems, featuring rapid switching capabilities.
Classification of Solenoid Valves by Principle:
- Principle: When energized, the coil generates magnetic force to open the pilot hole, creating a pressure differential that moves the closure element, opening the valve. When de-energized, the spring force closes the valve.
- Features: High fluid pressure range, flexible installation. However, it requires a minimum media pressure.
- Principle: The magnetic force directly opens the valve when energized, and the spring closes it when de-energized.
- Features: No media pressure requirement, suitable for small diameter applications.
3. Direct Pilot Solenoid Valve
- Principle: Combines direct and pilot mechanisms, using pressure differentials and magnetic force to open and close the valve.
- Features: Action is unaffected by media pressure, but it must be installed horizontally.
Solenoid valves have a simple structure, usually with only open and closed states, but they require high media cleanliness; excessive impurities can impair their normal operation.
Common Issues:
- Causes for No Action: Coil damage, lack of power, insufficient media pressure, etc.
- Causes for Improper Opening/Closing: Excessive impurities, worn sealing elements, too much moisture, etc.
What is an Electric Valve?
An electric valve uses an electric actuator to control the valve’s opening and closing, often replacing manual control. The valve body structure is similar to that of a manual valve, but it features an electric actuator.
Electric actuators use motors to drive gear reduction devices, allowing for both linear and rotational motion, applicable to various valve types (e.g., electric gate valves, butterfly valves, etc.). Electric valves operate more slowly than solenoid valves but can adjust the valve opening based on signals.
Our company currently uses electric control valves to maintain water-gas balance in cross-linked sulfurization pipelines, regulating water flow to seal nitrogen within the pipeline. The electric actuator comprises a single-phase servo motor, servo controller, gear reduction device, drive screw, limit switch, and feedback potentiometer, working with pressure transmitters that send signals to the level gauge to control the water-gas balance.
Electric valves have a more complex structure and are better able to withstand voltage spikes due to motor drive, resulting in longer service life and lower failure rates. They are suitable for larger diameter and flow applications, though their switching speed is slower.
Summary
- Solenoid Valves: Suitable for small diameters and low flow, quick switching, but require high media cleanliness and have lower voltage tolerance.
- Electric Valves: Suitable for larger diameters and high flow, slower switching speed, high voltage tolerance, and lower cleanliness requirements.
Why more and more international valve brands choose DELCO for OEM service?
Founded in 2011, DELCO is a global leader in the industrial sector. Our main products include electric actuator valves, pneumatic actuator valves, automation actuators and solenoid valves. For nearly 20 years, we have utilized our products, engineering expertise and industrial automation solutions to solve countless industrial project problems for our customers, including food, beverage, chemical, water treatment, pharmaceutical, natural gas, oil and HVAC projects. We currently have five subsidiaries and more than 50 distributors around the world providing rapid response service.
All DELCO products undergo a 100% in-house design, engineering and manufacturing process led by highly skilled and experienced engineers using Italian and German technology to manufacture high quality, safe, reliable and value for money valves, actuators and solutions. Manufacturing standards can be demonstrated by the certifications obtained over the years.
And with the ISO 9001:2015 Quality Management System certification as well as many other certifications such as: SGS, RoHS, CNEX, TUV, CE, FDA. these certifications prove that DELCO adheres to the highest quality and safety standards worldwide when manufacturing its products.
How to get a quick quote for industrial valves?
If you have questions about valves or want to get a quote, please feel free to contact us, we will reply within 6 hours. Phone +86 150 1535 8097, WhatsApp +86 159 8960 2972 or email marketing sales@delcofluid.com.
DELCO’s quality, competitive prices and excellent service make it the best valve partner to help you grow your business. Customize your valves, we have no minimum order.
At DELCO, we understand the importance of customer satisfaction and strive to meet the unique needs of every client. As a reliable control valve supplier, we are committed to providing excellent customer service and high-quality products to ensure optimal performance and longevity. By choosing DELCO as your trusted control valve supplier, you can benefit from customized valve assemblies designed specifically to meet your requirements, enhancing efficiency and reducing downtime.
Furthermore, our competitive pricing on electronic pressure regulators enables you to offer top-notch solutions. As one of the leading control valve manufacturers, we take pride in delivering reliable valves that not only meet industry standards but also contribute to the overall profitability of your business. By partnering with DELCO, you can have peace of mind knowing that you are making a wise choice for the long-term success of your company.
