Pipe Supplies

Manufacturer Direct Sales: Electric Plastic Ball Valves, Electric PVC Ball Valves with Flange and Union Connections

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  1. Product Introduction


  • Electric Plastic Ball Valves: These valves combine the functionality of a ball valve with an electric actuator. The ball valve design provides a reliable means of controlling the flow of fluids. The ball inside the valve has a hole through which the fluid can pass. By rotating the ball, the flow can be either allowed or blocked completely. The use of plastic materials, such as PVC (Polyvinyl Chloride), offers several advantages.

  • Electric PVC Ball Valves: PVC is a popular choice due to its excellent chemical resistance, lightweight nature, and cost - effectiveness. It can withstand a wide range of chemicals, making it suitable for applications where the valve may come into contact with corrosive substances. The electric actuator attached to the valve allows for remote or automated control of the valve's position.

  • Flange and Union Connections: The flange and union connections are important features. Flange connections provide a secure and stable way to attach the valve to pipes. They are often used in larger - diameter piping systems or in applications where a high - pressure seal is required. Union connections, on the other hand, offer the advantage of easy installation and removal of the valve. This simplifies maintenance and repair processes, as the valve can be quickly detached from the piping system without the need to cut or modify the pipes extensively.


  1. Components and Working Principle


  • Valve Body: The PVC valve body is the main housing for the ball and other internal components. It is designed to be durable and leak - proof. The internal surface is smooth to ensure minimal resistance to fluid flow. The body is molded into shape and has the necessary ports for the inlet and outlet of fluids.

  • Ball and Seats: The ball is usually made of a high - quality plastic or a corrosion - resistant material like stainless steel. The seats, against which the ball seals, are made of an elastomeric material that provides a tight seal when the valve is in the closed position. When the ball is rotated, the flow path through the valve changes. For example, when the hole in the ball aligns with the inlet and outlet ports, the fluid can flow freely.

  • Electric Actuator: The electric actuator consists of a motor, gears, and a control mechanism. When a control signal is received (either from a local control panel or a remote control system), the motor rotates, which is then translated into the rotation of the ball through the gears. The actuator can control the position of the valve precisely, allowing for accurate flow control. The control mechanism may include features such as limit switches to ensure that the valve opens and closes to the correct positions.


  1. Applications


  • Water Treatment Plants: In water treatment processes, these valves are used to control the flow of water and chemicals. For example, in a chemical dosing system, the electric PVC ball valves can accurately dispense the required amount of coagulants or disinfectants. The flange connections ensure a reliable seal in a high - pressure environment, and the ability to remotely control the valves allows for efficient operation and monitoring.

  • Irrigation Systems: In agricultural and landscape irrigation, the valves can be used to control the water supply to different zones. The union connections make it easy to install and maintain the valves in the field. The electric operation enables automated watering schedules, which can be adjusted according to the needs of different plants and weather conditions.

  • Chemical Processing Industry: In chemical plants, the valves are used to handle a variety of corrosive chemicals. The PVC material of the valve can resist the chemical attack, and the electric control allows for precise flow regulation in chemical reactions and transfer processes.


  1. Advantages


  • Corrosion Resistance: The use of PVC material provides excellent corrosion resistance, which is crucial in applications where the valve may be exposed to chemicals or moisture. This reduces the risk of valve failure due to corrosion and increases the lifespan of the valve.

  • Remote and Automated Control: The electric actuator enables remote and automated control of the valve. This is highly beneficial in industrial settings where precise flow control and monitoring are required. It also allows for integration with larger - scale automation systems.

  • Ease of Installation and Maintenance: The flange and union connections make installation and maintenance more convenient. The union connections allow for quick valve replacement, and the flange connections ensure a secure and long - lasting attachment to the piping system.


  1. Installation and Maintenance Considerations


  • Installation: When installing the valve with flange connections, it's important to ensure that the flanges are properly aligned and tightened according to the recommended torque values. For union connections, the mating surfaces should be clean and free of debris to ensure a proper seal. The electric actuator should be wired correctly according to the manufacturer's instructions, and any necessary grounding should be provided.

  • Maintenance: Regular maintenance includes checking the seals for wear and leakage. The ball and the valve body interior should be inspected for any signs of damage or debris buildup. The electric actuator's performance should be tested periodically, including the operation of the motor, gears, and control mechanism. If any issues are found, such as a leaking seal or a malfunctioning actuator, they should be addressed promptly to ensure the valve's proper functioning.


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