Key Technical Parameters for Electric Control Valves in China

1. Basic Concepts of Electric Control Valves

Electric control valves are devices that control the opening and closing of valves through electric actuators. They are widely used in hydraulic systems to regulate parameters such as flow rate and pressure. Their core advantages lie in their high degree of automation, high control precision, and fast response speed.

1. Analysis of Key Technical Parameters
2. Pipeline Parameters

• Pipe Diameter (DN): Select the appropriate pipe diameter based on the on-site pipe inner diameter specifications or flow requirements. For example, pipes with DN50 and above generally use flange interfaces, while those with DN50 and below can be selected according to requirements.

• Interface Type: Common interface types include flanges and threads, which need to be selected based on the actual pipeline design.

2. Fluid Parameters

• Fluid Type: Select the appropriate material and structure based on the fluid properties (e.g., corrosive, high-temperature, food-grade, etc.). For example, corrosive liquids require corrosion-resistant materials, while high-temperature liquids require heat-resistant materials.
• Fluid state: Includes gaseous, liquid, or mixed states; different states require different valve requirements.
• Fluid viscosity: High-viscosity fluids require low-viscosity electrically controlled valves to ensure smooth operation.

3. Pressure parameters

• Nominal pressure (PN): Select the appropriate nominal pressure rating based on the working pressure of the pipeline system.
• Working pressure: For low working pressure environments, direct-acting or step-direct-acting valves can be selected; for high working pressures, pilot-operated valves should be considered.

4. Electrical parameters

• Voltage specifications: Common voltage specifications include AC220V and DC24V, which must be selected based on the on-site power supply conditions.
• Control method: Includes on/off type and regulating type, selected according to control requirements.

5. Operating mode

• Normally open/Normally closed type: Select based on the valve's usage frequency and duration. Normally open valves are suitable for long-term open applications, while normally closed valves are suitable for less frequent applications.
• Safety Protection: For special operating conditions such as furnace and kiln flame detection, valves capable of continuous power supply should be selected.

6. Environmental Conditions

• Explosion-proof Rating: Valves with the appropriate explosion-proof rating must be selected in explosive environments.
• Protection Rating: Valves with a protection rating of IP54 or higher are recommended for outdoor installations or locations with high levels of smoke and dust.

1. Selection Considerations
2. Define Requirements: Before selection, a detailed analysis of project requirements and clarification of all technical parameters are necessary.
3. Comprehensive Evaluation: Consider factors such as the valve's technical performance, quality, price, and after-sales service.
4. Brand Selection: Prioritize well-known brands to ensure product quality and after-sales service.
5. Site Adaptability: Consider the valve's adaptability to the site environment, such as temperature, humidity, and explosion-proof requirements.

1. Advantages of LIKE Valves

As a leading supplier of electric control valves, LIKE Valves possesses the following advantages:

1. Extensive Product Line: Offering electric control valves in various specifications and materials to meet diverse operating conditions.
2. Strict Quality Control: Certified by ISO9001 Quality Management System to ensure product quality.
3. Professional Technical Support: Providing comprehensive technical consultation and support to assist customers in product selection.
4. Comprehensive After-Sales Service: Providing comprehensive services including installation guidance, regular maintenance, and troubleshooting.

Conclusion: Selecting the right hydraulic electric control valve in China is a highly specialized task. Mastering key technical parameters is crucial for successful selection. With its extensive experience and high-quality products, LIKE Valves is committed to providing the most reliable valve solutions for your engineering projects.