2 Piece Ball Valve Application And Main Features Of Electric Ball Valve

What is an 2 Piece Ball Valve? Electric valve applications

What is an electric valve? Electric valves are essential components for industrial automation and process control, offering stable performance, easy installation, reliability, and durability. Today, we introduce our key electric valve products, hoping to help users better utilize them.

Electric valve applications

Electric valves have a simple structure, consisting of only a few parts, saving material consumption. They are compact and lightweight, with minimal installation size and actuation torque. They are simple and quick to operate, allowing pressure regulation valves to be quickly activated and closed with a simple 90° rotation. Furthermore, they offer excellent flow regulation and shutoff sealing properties. Electric ball valves are particularly effective in medium-to-large diameter and low-pressure applications. When the electric valve is fully open, the disc thickness is only the resistance to the flow of the medium, resulting in a minimal pressure drop across the valve, providing excellent flow control.

Electric valves are available in both housing and metal seal types. For valves with elastomeric seals, the seal can be mounted on the main body or the outer plate, as a tip. Metal-sealed valves generally offer a longer service life than elastomeric seals, but achieving a complete seal is difficult. Metal seals can withstand higher temperatures, while elastic seals have limited temperature limits. If a flow control electric valve is required, it is important to select the correct valve size and type. The structural principles of electric valves are particularly suitable for manufacturing large-diameter valves.

Electric valves are widely used not only in general industry, but also in oil, gas, chemical, and water treatment, as well as in thermal power plant cooling water systems. Commonly used electric ball valves are wafer-type and flange-type. Electric stud wafer ball valves connect two pipe flanges, while electric ball valves are flange-mounted valves with bolts on both ends of the flange to the upper pipe flange adapter. Valve strength refers to the valve's ability to sustain the medium's pressure. Sustained pressure valves are mechanical products and therefore must possess sufficient strength and rigidity to ensure long-term use without cracking or deformation.

They function as line pressure elements in industrial automation process control, typically used for remote control of media channels and shutoffs (ON, OFF, and media).

Features: Integrated structure, single-phase 24VDC power supply, AC220V and DC power supply operation; compact size, lightweight, reliable performance, simple matching, and high flow rate. Electric ball valves feature a 90-degree rotational motion. The plug body is a spherical ball with a circular hole or channel running through its axis. Ball valves are primarily used in pipelines to cut off, distribute, and redirect the flow of media. They require only a 90-degree rotation and minimal torque to achieve a tight seal. While most suitable for on/off and shut-off valves, recent developments have enabled ball valves to be designed for throttling and flow control, such as V-shaped ball valves.

The key features of electric ball valves include a compact structure, reliable sealing, simple construction, and easy maintenance. The sealing surface and ball surface are always closed, making them less susceptible to erosion by the media. They are easy to operate and maintain. They are suitable for general working media such as water, solvents, acids, and natural gas, as well as for media with harsh working conditions such as oxygen, hydrogen peroxide, methane, and ethylene. They are widely used in various industries. Electric ball valve bodies can be either integral or modular.

Electric ball valve actuators are essential drive and control devices for programmable, automatic, and remote control of electric ball valves. Their motion is controlled by parameters such as stroke and torque. Since the operating characteristics and utilization rate of electric ball valve actuators depend on the type and characteristics of the ball valve, correctly selecting the actuator is crucial to preventing overload.

Actuator output torque is the most important parameter for selecting an electric actuator. It should be 1.2 to 1.5 times the maximum operating torque of the selected ball valve. Secondly, appropriate opening and closing speeds should be selected based on the different operating conditions of the ball valve to prevent water hammer caused by excessive opening and closing speeds.

Electric ball valve actuators are essential drive and control devices for programmable, automatic, and remote control of electric ball valves. Their motion is controlled by parameters such as stroke and torque. Since the operating characteristics and utilization rate of electric ball valve actuators depend on the type and characteristics of the ball valve, correctly selecting the actuator is crucial to preventing overload.

Actuator output torque is the most important parameter for selecting an electric actuator. It should be 1.2 to 1.5 times the maximum operating torque of the selected ball valve. Secondly, the appropriate opening and closing speed should be selected based on the specific operating conditions of the ball valve to prevent water hammer caused by excessive opening and closing speeds.

Electric ball valve actuators have specific requirements: they must be able to limit torque (axial force) and rotation angle. Once the specifications of the electric actuator are determined, the controlled torque is also determined. Generally, the motor will not be overloaded when operating within a predetermined timeframe. However, overload may occur in the following situations: 1. Low power supply voltage prevents the required torque from being achieved, causing the motor to stall; 2. The torque limiter is incorrectly set to a torque greater than the stall torque, resulting in continuous excessive torque and stalling the motor; 3. Intermittent operation generates heat that exceeds the motor's allowable temperature rise; 4. The torque limiter circuit malfunctions for some reason, causing excessive torque; 5. Excessive operating temperature reduces the motor's thermal capacity.

1. The ambient temperature should be kept between -25°C and 70°C.

2. Explosion-proof electric ball valves should be selected in certain situations, such as unstable current flow, corrosive environments, flammable and explosive environments, special media, and long periods without maintenance.

3. Due to the complexity of the electric mechanism, malfunctions should not be disassembled to prevent accidents.

4. Under no circumstances should the electric ball valve be struck or placed with objects.