Stainless Steel Electric Ball Valves

The Stainless Steel Electric Ball Valves is a rotary valve that uses an electric actuator as the power source and a fixed ball as the closure member. Driven by the electric actuator, the valve stem rotates the ball 90° to open or shut off the media in pipelines. The ball is fixed and positioned by upper and lower shafts, delivering stable sealing performance suitable for medium-high pressure working conditions. It serves as a critical flow control device in industrial automatic control systems.

Featuring a robust structure, wear resistance, and corrosion resistance, this valve is applicable to water, steam, oil products, and mildly corrosive media. It is widely used in petroleum, chemical engineering, electric power, food and pharmaceutical industries, as well as industrial automatic pipe networks.

Product Features

1.Premium Stainless Steel Material

Key components including the valve body, ball, and valve seat are made of 304/316 stainless steel, with the valve seat paired with cemented carbide. This configuration provides excellent corrosion resistance, high temperature resistance, and wear resistance, ensuring reliable long-term operation.

2.Electric Drive for High-Efficiency Automation

Equipped with an electric actuator, the valve enables remote control and automatic regulation. It can be paired with an intelligent positioner to achieve precise flow control, reducing labor operation costs.

3.Fixed Ball Structure with Low Opening/Closing Torque

The fixed ball design ensures uniform force distribution and structural stability, making it ideal for large-diameter, medium-high pressure pipeline systems. It allows for easy and reliable opening and closing operations.

4.Cemented Carbide Sealing for Reliable Performance

The sealing surfaces of the valve seat and ball are made of cemented carbide and undergo special treatment, offering excellent wear and high temperature resistance. It achieves a leakage rating of API Class V, safeguarding system safety.

5.Broad Pressure and Diameter Compatibility

Covering pressure ratings from PN16 to PN420 and Class 150 to Class 2500, with nominal diameters ranging from DN50 to DN1200, the valve meets the control requirements of large-flow pipelines.

6.Reliable Protection for Complex Industrial Environments

The electric actuator has a protection rating of IP65 or higher, with a housing made of aluminum alloy or cast iron. It can operate continuously in harsh industrial environments involving high temperatures, high pressure, and corrosion.

Applications

The Stainless Steel Electric Ball Valves is suitable for various industrial scenarios:

● Remote control and shut-off systems in petroleum and natural gas pipelines

● Flow control of high-temperature, high-pressure, and mildly corrosive media in chemical production

● Automatic control of large-diameter pipelines in power and heating systems

● Food, pharmaceutical, and purified water pipeline systems

● High-temperature steam, oil product, and gas transmission pipe networks

Scientific selection and proper installation can extend the valve's service life and improve the safety and automation level of the pipe network system.

Model Interpretation

Take the common model Q947H-16P as an example:

Design and Manufacturing Standards

● API 6D: International design and manufacturing standard for electric ball valves in the oil and gas industry

● GB/T 12237: Chinese national standard, referenced for valve structure and technical requirements

● GB/T 9113: Standard for flange dimensions and pressure ratings

● JB/T 8528: Technical requirement standard for electric actuators

● IEC 60534: Technical specification for industrial process control valves, ensuring automatic control performance

Technical Parameters Table

Component Materials

● Valve Body: Stainless steel (CF8/CF8M/CF3/CF3M), selected according to medium corrosivity

● Ball: Stainless steel body with cemented carbide overlay welding on the sealing surface, enhancing wear and high temperature resistance

● Valve Seat: High-strength cemented carbide, providing reliable sealing and erosion resistance

● Valve Stem: Stainless steel with nitrided or sprayed surface, offering wear and corrosion resistance

● Packing: Flexible graphite or high-temperature expanded graphite, ensuring dynamic sealing of the valve stem

● Electric Actuator: Aluminum alloy or cast iron housing with IP65 protection rating, suitable for complex industrial environments

Selection Key Points

1.Working Condition Analysis

Clarify the medium type, particle content, corrosivity, temperature, and viscosity

For highly corrosive media, 316L stainless steel is recommended

2.Parameter Confirmation

Select the nominal diameter (DN) based on pipeline size and flow requirements

Choose the actuator matching the opening/closing torque, pressure rating, and protection rating

For automation needs, select an actuator with an intelligent positioner supporting 4-20mA signal control

3.Material Selection

Valve body material: 304 for general working conditions; 316L for corrosive working conditions

Sealing material: Cemented carbide hard seal for high-temperature, high-pressure, or particle-containing media

4.Standard and Certification Compliance

Ensure the valve and actuator comply with standards such as API, GB, and IEC

The electric actuator should have electrical certifications such as CE and UL

5.Supplier Evaluation

Select suppliers with qualified electric ball valve manufacturing capabilities, rich experience, and a sound after-sales service system

Request complete technical documents: samples, parameter tables, material certificates, and actuator manuals