Y-type ball valves have gained popularity in industrial pipeline systems due to their unique Y-shaped structure and excellent fluid control performance. They are designed to reduce fluid resistance and improve flow efficiency, making them well-suited for specific applications. 1. Situations that require low flow resistance and high flow rates: ①High-flow pipeline systems: The Y-shaped design of the ball valve significantly reduces the resistance as fluid passes through the valve, making it suitable for pipelines that require high-flow control. This design ensures smooth and efficient fluid flow, reducing energy consumption. ②Applications with low pressure drop requirements: In systems sensitive to pressure drop, the low flow resistance characteristics of Y-type ball valves effectively reduce pressure losses in the system, ensuring overall pipeline efficiency. For example, in long-distance transportation pipelines and process flows that require specific pressure maintenance, Y-type ball valves are an ideal choice. 2. Handling high viscosity and media with particles: ①High-viscosity fluids: Y-type ball valves can handle high-viscosity fluids, avoiding excessive flow resistance within the valve. This makes them suitable for the transportation and control of high-viscosity media such as oils, syrups, and slurries. ②Media with particles: Due to their smooth and spacious flow passages, Y-type ball valves effectively prevent particle accumulation and blockages when handling fluids with particles. They are suitable for transporting media such as mud and wastewater. 3. Situations that require frequent operation and adjustment: ①High-frequency opening and closing operations: The design of Y-type ball valves allows them to perform well in frequent opening and closing operations, providing reliable sealing performance and long service life. In situations that require frequent operations, such as flow and direction control, Y-type ball valves are a reliable choice. ②Precise flow control: The flow passage design of Y-type ball valves enables precise flow control, making them suitable for process flows that require fine control of flow rates, such as chemical reactions and pharmaceutical production processes. 4. Installation environments with limited space: Y-type ball valves have a compact structure and occupy minimal space, making them suitable for installation in limited spaces. Whether it is inside equipment, dense pipeline areas, or systems that require high-density installation, Y-type ball valves can adapt flexibly. 5. Systems that require high fluid cleanliness: The design of Y-type ball valves ensures smooth flow passages that are not prone to impurity accumulation, making them easy to clean and maintain. In industries with high requirements for fluid cleanliness, such as pharmaceuticals, food, and beverages, Y-type ball valves are an ideal choice. 6. Cost control and ease of maintenance requirements: Due to their low flow resistance design, Y-type bal...

Butterfly valves are essential components in fluid control systems, widely used in various industries for their advantages such as simple structure, compact size, lightweight, flexible operation, and easy installation. They are particularly suited for controlling fluid flow, pressure, and direction. Among the commonly used butterfly valves, there are two main types: wafer butterfly valves and flanged butterfly valves. Different Connection Methods: Wafer Butterfly Valve: The valve body does not have flanges. It is clamped between two pipe flanges using double-ended bolts. Two flange pieces clamp the butterfly valve, which is then fixed with bolts. Flanged Butterfly Valve: The valve body has flanges. The valve is connected to the pipe flanges at both ends using bolts. Different Structures: Wafer Butterfly Valve: The bolts used are relatively long, and it does not have flanges itself. Therefore, it is generally not recommended to install it at the end of the pipeline or in downstream positions that require disassembly. When disassembling the downstream flange, the wafer valve may fall off, causing both ends of the pipeline to be unable to function properly. Flanged Butterfly Valve: Due to the valve body having its own flanges, it is securely connected to the pipe flanges. Even if one end is removed, it will not affect the normal operation of the other end of the pipeline. Different Costs and Construction Requirements: Wafer Butterfly Valve: The longer bolts used and the requirement for high construction accuracy may cause leakage if the flanges are not properly aligned. However, it is convenient to disassemble and has relatively lower cost. However, if there is an issue with one sealing surface, both sealing surfaces may need to be opened for inspection and repair. Flanged Butterfly Valve: Although the cost may be slightly higher, the connection is more secure, and the impact range during maintenance is smaller.

The wafer ball valve is a common industrial valve, widely used in various piping systems due to its unique structural design and superior performance. Definition A wafer ball valve is a valve that controls fluid flow by rotating the valve core. Its body is designed in a wafer style, meaning the valve is clamped between two pipeline segments with bolts, eliminating the need for additional space required by traditional flange connections. Wafer ball valves are typically used for applications involving shutoff, distribution, and changing the flow direction. Structural characteristics 1. Compact Design: The wafer ball valve features a wafer-style design, making its structure compact and requiring minimal installation space, ideal for pipeline systems with limited space. 2. Lightweight: Due to the elimination of flanges and bolt connections, the wafer ball valve is relatively lightweight, helping to reduce the load on the pipeline system. 3. Easy Installation and Maintenance: The installation and removal of wafer ball valves are very convenient; simply sandwich the valve between the pipelines and secure it with bolts. This design greatly simplifies the installation and maintenance process of the valve. 4. Good Sealing Performance: Wafer ball valves typically use soft or hard sealing structures, ensuring excellent sealing performance and effectively preventing fluid leakage. Working principle The working principle of the wafer ball valve is relatively simple, primarily involving the rotation of the valve core (ball) to control fluid flow. The specific process is as follows: 1. Opening the valve: When the handle or actuator is rotated, the valve core (ball) rotates 90 degrees, aligning the valve passage with the pipeline passage, allowing fluid to pass through freely. 2. Closing the valve: By rotating the handle or actuator in the opposite direction, the valve core (ball) rotates another 90 degrees, making the valve passage perpendicular to the pipeline passage, blocking the fluid flow and achieving the shut-off function. Advantage 1. Space-saving: The compact design of wafer ball valves takes up less space, making them particularly suitable for installations with limited space. 2. Lightweight: Compared to traditional flanged ball valves, wafer ball valves are lighter, making them easier to transport and install. 3. Easy installation: The installation process of wafer ball valves is simple and quick. They only need to be clamped between the pipes and fixed with bolts, eliminating the cumbersome steps of flange connections. 4. Excellent sealing performance: Wafer ball valves use high-quality sealing materials, providing superior sealing performance suitable for applications requiring high sealing standards. 5. Versatile applications: Wafer ball valves are suitable for various industrial piping systems, such as water treatment, chemical, oil and gas, pharmaceutical, and food industries. Application 1. Water treatment systems: Used to control water flow an...

On the evening of June 27, 2024, DERVOS joyously celebrated its 16th anniversary. We not only invited esteemed partners to join us in the celebration, but also meticulously planned a unique journey through time. With the theme "Golden Years, Timeless Classics," we took a nostalgic trip back to the 1990s in Hong Kong. The celebration was filled with a sense of nostalgia and joy, with every detail seemingly transporting us through time to experience the unique charm of that golden era. To match the theme, all partners and colleagues carefully prepared Hong Kong-style outfits, with many colleagues even mimicking classic looks. We specially arranged a fashion show for the occasion. Everyone confidently walked the catwalk, showcasing their Hong Kong-style elegance. Under the flash, everyone exuded a unique charm, as if time had turned back, and the glamour and charm of the 1990s were once again brought to life. In order to let our partners to experience the essence of traditional Chinese culture, we meticulously prepared a "lacquer fan" making activity. By dripping different pigments into the water, the fans spun in the water, creating unique and beautiful patterns that left everyone in awe. Each lacquer fan became a one-of-a-kind piece of art, embodying the creativity and ingenuity of our clients. Our dear partners wrote blessings for Dervos on folding fans and stamped their own exclusive seal, leaving behind cherished memories. The versatile Dervoser added endless joy to the celebration. Sheila and Noisy's jazz dance performance brought the atmosphere to a climax. As the dynamic music played, their passionate performance energized everyone. With the explosive background music, everyone took to the dance floor together, dancing and celebrating this unforgettable moment. That night, we not only reminisced about the glorious past but also looked forward to future prospects. Dervos will continue to uphold the spirit of "Timeless Classics, Everlasting Brilliance," and together with every customer and colleague, write even more magnificent chapters. We thank everyone who has supported and accompanied Dervos, and we look forward to continuing our journey together, creating a better tomorrow.

The Y-type globe valve is a common type of valve widely used in various industrial fields such as petroleum, chemical, power, and water treatment. Its unique design makes it excellent for regulating and shutting off fluid flow, offering high reliability and durability. Structure and Principle The Y-type globe valve consists of main components such as the valve body, bonnet, stem, disc, and handwheel. Its name is derived from the Y-shaped structure of its valve body chamber. This design not only reduces the resistance of fluid passing through but also facilitates the movement of the disc. The stem is driven by a handwheel or an electric actuator. When the stem rises, the disc moves away from the seat, allowing fluid to pass through. When the stem lowers, the disc contacts the seat, cutting off the fluid flow. Features and advantages 1. Low Fluid Resistance: Due to the Y-type structural design, the resistance encountered by the fluid passing through is lower than that of a standard globe valve, resulting in minimal flow loss. 2. Excellent Sealing Performance: The sealing surfaces of the disc and seat are made of hard alloys or other wear-resistant materials, ensuring reliable sealing and long service life. 3. Easy Operation: The handwheel operation is simple, and the valve can be equipped with electric or pneumatic actuators for remote control and automation. 4. Easy Maintenance: The valve body has a simple structure, making it easy to disassemble and maintain, thus reducing maintenance costs. Application area 1. Petroleum and Natural Gas Industry: Used in oil pipelines and natural gas transmission systems, featuring high-pressure resistance and corrosion resistance. 2. Chemical Industry: Suitable for pipeline systems with various corrosive media, possessing excellent anti-corrosion performance. 3. Power Industry: Used in steam and cooling water systems, resistant to high temperature and high pressure. 4. Water Treatment: Utilized in wastewater treatment plants and waterworks for cutting off and regulating water flow. Installation and maintenance 1. Location Selection: Choose the appropriate location based on the pipeline direction to ensure convenient valve operation. 2. Installation Direction: Install according to the medium flow direction markings to avoid improper sealing caused by reverse installation. 3. Regular Inspection: Regularly check the valve's sealing performance and operational flexibility, and replace damaged seals promptly. 4. Lubrication Maintenance: Regularly lubricate the threaded parts of the valve stem to maintain smooth operation.

A diaphragm valve is a type of valve widely used in industrial applications. It controls the fluid by isolating the fluid from the internal moving parts of the valve body through a flexible diaphragm. Due to its unique design, diaphragm valves offer distinct advantages in many application scenarios. Structural characteristics The main components of a diaphragm valve include the valve body, diaphragm, bonnet, stem, and handwheel. The interior of the valve body is designed with a smooth passage to allow fluid to flow through easily. The diaphragm is typically made of elastic materials such as rubber or fluoroplastic and is fixed between the valve body and the bonnet, serving as both a seal and a barrier. The stem is connected to the diaphragm via threads or other mechanical devices, and the handwheel is used to drive the stem up and down. Working principle The working principle of a diaphragm valve is relatively simple. By rotating the handwheel or operating the actuator, the stem moves the diaphragm up and down. When the diaphragm moves down and presses against the valve seat, the valve closes, blocking the fluid. When the diaphragm moves up and away from the valve seat, the valve opens, allowing the fluid to pass through. Types 1. Based on the driving method, diaphragm valves can be divided into manual diaphragm valves, pneumatic diaphragm valves, and electric diaphragm valves. 2. Based on the structural form, diaphragm valves can be divided into straight-through and angle type. 3. Based on diaphragm materials, diaphragm valves can be divided into rubber diaphragm valves and fluoroplastic diaphragm valves. Advantages 1. Leak-Free Design: Diaphragm valves offer excellent sealing performance, effectively preventing fluid leakage. 2. Corrosion Resistance: With the appropriate diaphragm material, diaphragm valves can be used with various corrosive media. 3. Easy Maintenance: Simple structure, easy to disassemble and replace the diaphragm, resulting in low maintenance costs. 4. Low Fluid Resistance: Smooth flow path design results in low fluid resistance, making them suitable for high-viscosity fluids and fluids containing particulates. Application Areas: Diaphragm valves are widely used in industries such as chemical, pharmaceutical, food and beverage, water treatment, and electronics.