Grooved Butterfly Valve: Unique Design and High Performance

Grooved butterfly valves are widely used in the valve industry due to their unique design and superior performance. As an efficient flow control device, they not only offer excellent operational convenience but also strong durability and adaptability. This article will detail the design structure, material characteristics, application scenarios, and installation advantages of grooved butterfly valves to fully showcase the superiority of this type of valve.

Design Structure and Working Principle

The design of grooved butterfly valves is simple and compact, utilizing a worm gear transmission mechanism. When the valve operates, the cam rotates with the worm gear, pressing down or releasing the contacts on the signal device at predetermined positions, outputting corresponding "on" or "off" electrical signals. This signal directly reflects the opening and closing status of the valve, facilitating real-time monitoring and adjustment. During operation, the opening and closing stroke of the grooved butterfly valve is short, and the speed is fast, with only a 90° rotation required to complete it, thus achieving rapid flow control.

Grooved butterfly valves feature a well-proportioned structural design that is not only highly practical but also very convenient for operation and maintenance. The valve body is exquisitely designed, small in size and light in weight, making it easy to install, especially suitable for applications with limited space.

Material and Durability

The valve body of grooved butterfly valves is typically made of ductile iron, which has good high-temperature resistance and strong pressure resistance. This material is not only robust and durable but also maintains stability in high-temperature environments, adapting to various complex working conditions. The valve body is welded from thick-walled seamless pipes, with an aesthetically pleasing appearance and reliable quality, and is not prone to deformation or damage during long-term use. In addition, the inner and outer surfaces of the valve are coated with a powder epoxy resin coating, greatly enhancing its corrosion resistance, allowing it to maintain excellent performance in various corrosive media.

Connection Method and Installation Advantages

Grooved butterfly valves use a clamp connection method to tightly connect the valve with the pipeline. Compared with traditional flange connections, this connection method significantly reduces manufacturing and installation costs. The advantage of clamp connection lies in its simplicity, light weight, fewer bolts, and the ability to be installed without special skills. Compared with flange connections, clamp connections require only 70% of the space needed for flanges, making them particularly suitable for construction in confined spaces.

Furthermore, the grooved clamp connection system has a flexible characteristic that can effectively absorb thermal expansion or contraction of the pipeline caused by temperature changes, allowing the pipeline to deviate within a certain range, ensuring the stability and flexibility of the system. This makes the valve particularly outstanding in some working conditions that require a large amount of pipeline displacement.

Application Fields and Suitable Media

The wide applicability of grooved butterfly valves makes them play an important role in multiple industries. The media they can handle include corrosive gases, non-corrosive gases, liquids, semi-liquids, and solid powders, thus finding extensive use in chemical, petroleum, food, pharmaceutical, marine, water supply and drainage, and energy systems. In fire protection systems and high-rise buildings, the opening and closing status display function of grooved butterfly valves is particularly favored, allowing real-time monitoring of pipeline status and ensuring safe operation.

The valve's multi-seal design features a C-type rubber seal ring, providing triple sealing functions, further enhancing its sealing reliability. Whether in corrosive environments or under high pressure and high temperature conditions, grooved butterfly valves can maintain good sealing performance, achieving zero leakage.

Performance Features and Advantages

Grooved butterfly valves demonstrate several significant performance features and advantages due to their excellent design and materials, setting them apart in various fluid control applications.

Quick opening and closing, convenient operation: Grooved butterfly valves can be quickly opened and closed by rotating 90°, with a fast response to flow control. Due to their compact structure, simple operation, and minimal maintenance requirements, they are an efficient fluid control device.

Bidirectional sealing, reliable and durable: The valve has bidirectional sealing capabilities, maintaining sealing in both directions of flowing media without being restricted by the direction of the medium, ensuring zero leakage while extending service life.

High-strength corrosion resistance: The valve's interior and exterior are coated with epoxy resin, preventing corrosion from corrosive media, making it particularly suitable for strongly corrosive gases or liquids, ensuring the valve's stability and durability under harsh working conditions.

Reliable transmission, versatile functions: Grooved butterfly valves are equipped with micro-switch transmission devices inside, making the transmission process more reliable and offering various functions such as moisture-proof, damp-proof, and fire-proof capabilities, adapting to the needs of use in various complex working conditions.

Reducing construction costs, flexible installation: Since there is no welding required, there are no sparks or slag during installation, making it suitable for occasions with high construction safety requirements. Compared with traditional flange connections, the clamp connection method has a low installation repair rate, effectively reducing the overall installation cost.

Summary

Grooved butterfly valves play an irreplaceable role in pipeline systems with their unique design, excellent performance, and wide applicability. Their convenient installation methods, reliable sealing performance, quick opening and closing operations, and strong corrosion resistance make them an ideal choice in various industries such as chemical, food, pharmaceutical, and energy. Whether in conventional applications or under special working conditions, grooved butterfly valves provide reliable fluid control solutions to ensure the stable operation of the system.