A threaded bonnet gate valve is an essential fluid control device widely used in pipeline systems. It achieves fluid on-off control through a structure where the bonnet and valve body are connected by threads. 1. Structural characteristics (1) Threaded connection Connection between valve cover and valve body: The valve cover of a threaded valve cover gate valve is connected to the valve body through threads. Compared to other connection methods, such as flange connection, threaded connection has the characteristics of compactness and simplicity. Connection between valve stem and valve cover: The valve stem and valve cover are usually connected by threads, which simplifies the assembly and maintenance of the valve. (2) Gate Gate Material: Typically made from materials such as stainless steel and cast steel, providing good corrosion and wear resistance. Gate Types: Depending on the application requirements, the gate can be designed as either a parallel gate or a wedge gate to meet different sealing needs. (3) Sealing Structure Soft Seal or Hard Seal: Threaded bonnet gate valves can use either a soft seal or a hard seal structure, depending on the application conditions and the characteristics of the medium. Soft seals typically use rubber or PTFE, while hard seals use metal materials. 2. Working principle A threaded bonnet gate valve operates by rotating the handwheel, which moves the stem up and down, thereby driving the gate to rise and fall to achieve the opening and closing control of the valve. When the handwheel is rotated clockwise, the stem moves down, and the gate gradually closes; when the handwheel is rotated counterclockwise, the stem moves up, and the gate gradually opens. Open State: When the gate is fully raised, fluid can pass through the valve body unobstructed, achieving a fully open state. Closed State: When the gate is fully lowered, the gate tightly contacts the seat, preventing fluid from passing through, achieving a fully closed state. 3. Advantages (1) Simple Structure: The threaded bonnet gate valve has a relatively simple structure, making it easy to manufacture and maintain, and suitable for various industrial applications. (2) Easy Installation: The threaded connection makes the valve easy to install, especially suitable for small diameter piping systems. (3) Reliable Sealing: The threaded bonnet gate valve employs various sealing structures, providing reliable sealing performance under different operating conditions. (4) Lower Cost: Compared to other types of valves, the threaded bonnet gate valve has lower manufacturing and maintenance costs, offering good economic efficiency. 4. Application field Due to its compact structure, easy installation, and reliable sealing, the threaded bonnet gate valve is widely used in the following fields: (1) Industrial Pipeline Systems: Used to control the flow of various fluids in pipeline systems in industries such as chemical, petroleum, and natural gas. (2) Water Treatment Systems: ...

As a critical fluid control device, fully welded ball valves are widely used in fields such as petroleum, natural gas, chemical industry, heating, and water supply. Their structural characteristics and unique performance enable them to excel under various operating conditions. Function 1. Flow Control: Fully welded ball valves control fluid flow by rotating the valve core. The bore of the ball can be designed as full bore or reduced bore, meeting the flow requirements of different pipeline systems. 2. Medium Shutoff and Opening: Fully welded ball valves offer excellent sealing performance, enabling complete shutoff or opening of the medium, ensuring the safe operation of pipeline systems. They are especially suitable for applications requiring tight closure, such as natural gas transmission pipelines. 3. Directional Control: Some fully welded ball valves are designed in a multi-port configuration, allowing them to change the direction of fluid flow to meet the needs of complex pipeline systems. Characteristics 1. Fully Welded Structure: The body of the fully welded ball valve is welded to the pipeline, eliminating potential leak points and enhancing the valve's sealing and reliability. This structure makes it particularly suitable for high-pressure and high-temperature operating environments. 2. High Corrosion Resistance: Fully welded ball valves are typically made from high-quality stainless steel or alloy steel, offering excellent corrosion resistance. They can be used long-term in corrosive media such as acids, alkalis, and salts. 3. Long Service Life: Due to its compact structure, the fully welded ball valve uses special material sealing rings between the ball and the seat, reducing wear and corrosion, thus extending its service life. Under normal conditions, the service life of a fully welded ball valve can exceed 20 years. 4. Easy Maintenance: The compact design of fully welded ball valves requires minimal maintenance. Even when maintenance is necessary, only the stem part needs to be inspected and replaced, reducing downtime and maintenance costs. 5. Wide Range of Applications: Fully welded ball valves are suitable for various conditions ranging from low to high temperatures and from low to high pressures. Their excellent performance makes them widely used in industries such as urban gas, thermal power, chemical, and metallurgy. 6. Easy Operation: Fully welded ball valves can be operated manually, electrically, or pneumatically, offering flexible operation to meet different automation control needs. Summary Due to its unique structure and excellent performance, the fully welded ball valve has become an indispensable and important valve in modern industry. Its fully welded structure not only enhances sealing performance and reliability but also significantly prolongs service life and reduces maintenance costs. With continuous technological advancements, fully welded ball valves will play an increasingly important role in more fields, provid...

Buried soft-seated gate valves are critical valves widely employed in pipeline systems, featuring unique designs and functionalities that render them extensively utilized across various industrial and domestic applications. Working principle The working principle of buried soft-seated gate valves is based on the sealing performance between the gate and the sealing surface. When the valve is in the closed position, the gate is pushed against the sealing surface by the actuating mechanism, typically a handwheel or electric actuator, achieving complete closure of the pipeline. When it is necessary to open the valve, the actuating mechanism pulls the gate away from the sealing surface, allowing the medium to flow freely in the pipeline. Structural characteristics 1. Subterranean Design: Buried soft-seated gate valves are typically installed underground within pipeline systems to shield the valves from external environmental impacts. Simultaneously, this design maximizes space conservation and ensures unobstructed pipeline flow. 2. Soft-Sealing Structure: Soft-sealing materials typically utilize rubber or polymers, offering excellent sealing performance and corrosion resistance. They can maintain a stable sealing effect across various media and temperatures. 3. High Pressure Endurance: The design structure of buried soft-seated gate valves is robust, capable of withstanding high pressure and impact forces, ensuring stable and reliable operation under various operating conditions. 4. Anti-corrosion Coating: Valves are typically coated with anti-corrosion coatings on their surfaces to enhance durability and lifespan, thereby reducing maintenance costs. 5. Complete Accessory Configuration: Buried soft-seated gate valves are typically equipped with accessories such as handwheels, electric actuators, limit switches, etc., to meet operational requirements under different conditions. Application area 1. Petroleum and Chemical Industry: Used for control and regulation of crude oil, natural gas, and chemical media. 2. Municipal Water Treatment Systems: Used for flow control and prevention of backflow in municipal water distribution networks. 3. Wastewater Treatment Plants: Used for drainage and regulation in wastewater treatment systems. 4. Thermal Power Plants: Used for flow control in boiler feedwater pipelines and cooling water systems. 5. Urban Heating Systems: Used for regulation and control of heat transfer media in centralized heating networks. Buried soft-seated gate valves play a crucial role as integral components in pipeline systems across industrial and civilian domains. Their reliable sealing performance, stable structural design, and extensive application areas make them indispensable in pipeline systems. This article aims to help readers gain a comprehensive understanding and application of buried soft-seated gate valves, thereby enhancing the safety and operational efficiency of pipeline systems.

The tilting disc check valve is a common type of valve used in pipeline systems to prevent reverse flow of the medium. It typically consists of components such as the valve body, disc, spring, and sealing gasket. The working principle of the tilting disc check valve is based on the design of the disc: the disc is positioned at an angle, allowing the medium to flow smoothly through the valve in the forward direction, while swiftly closing the valve in the event of reverse flow, thereby preventing backflow of the medium. One of the characteristics of the tilting disc check valve is its simple structure. Due to the fewer components and compact layout, manufacturing and maintenance are relatively easy. Additionally, the tilting disc check valve has the capability of quick closure. When there is a change in the flow direction of the medium, the disc promptly responds and closes the valve, effectively preventing backflow of the medium and maintaining the normal operation of the pipeline system. Another significant feature is its excellent sealing performance. The tilting disc check valve employs devices such as springs to assist in closing the disc, ensuring effective sealing of the valve in the closed position, thus preventing medium leakage and safeguarding the safe operation of the pipeline system. Furthermore, tilting disc check valves are typically manufactured using corrosion-resistant materials, enabling them to operate stably in corrosive media over the long term. Another notable feature of the tilting disc check valve is its wide range of applications. It is suitable for various media, including liquids, gases, and steam, and is widely used in industries such as water supply, drainage, chemical, and petroleum. Whether in low-pressure systems or high-pressure systems, tilting disc check valves can reliably prevent medium backflow, protecting the safety operation of pipelines and equipment. In summary, the tilting disc check valve plays a crucial role in pipeline systems due to its characteristics of simple structure, rapid closure, excellent sealing performance, corrosion resistance, and wide applicability. When designing and selecting valves, considering factors such as the working pressure of the pipeline system, characteristics of the medium, and operating environment, choosing the appropriate tilting disc check valve can effectively enhance the safety and stability of the pipeline system.

The installation requirements of fully welded ball valves in underground pipelines are crucial, as the unique characteristics of the underground environment pose higher demands on the performance and safety of the valves. Proper installation not only ensures the normal operation of the valves but also prolongs their service life and enhances the safety and reliability of the pipeline system. The following are the specific requirements for installing fully welded ball valves in underground pipelines: 1. Selecting the appropriate valve type When installing fully welded ball valves in underground pipelines, it is necessary to choose the appropriate valve type based on the operating conditions and fluid characteristics of the pipeline system. Fully welded ball valves, with advantages such as simple structure and reliable sealing, are suitable for high-pressure, high-temperature, and corrosive fluid applications in pipeline systems. 2. Underground burial depth consideration When installing fully welded ball valves, it is imperative to consider the depth of underground burial. Typically, the burial depth of underground pipelines should comply with relevant standards and specifications to ensure the valves are positioned securely while facilitating maintenance and operation. 3. Corrosion protection measures The dampness of the underground environment and the presence of chemicals in the soil can lead to corrosion and damage to valves. Therefore, when installing fully welded ball valves, it is necessary to implement appropriate corrosion protection measures. This includes selecting valves manufactured from corrosion-resistant materials and applying corrosion-resistant coatings to the valves to extend their service life. 4. Sealing performance requirements Fully welded ball valves in underground pipeline systems must possess excellent sealing performance to prevent fluid leakage and contamination of groundwater sources. During installation, it is imperative to ensure that the valve's sealing components are intact and properly installed to ensure that the sealing performance meets design requirements. 5. Consideration of groundwater level fluctuations Fluctuations in groundwater levels may affect the operational status and safety of fully welded ball valves. When selecting installation locations, it is essential to consider the range of groundwater level fluctuations and implement corresponding waterproofing measures to prevent groundwater from affecting the valves. 6. Regular inspection and maintenance The underground environment has a significant impact on fully welded ball valves; therefore, regular inspection and maintenance of the valves are essential. Inspection tasks include assessing the sealing performance of the valves, checking the condition of moving parts, evaluating the effectiveness of corrosion protection measures, and promptly addressing any issues to ensure the safe operation of the valves. When installing fully welded ball valves in unde...

We are delighted to announce that our company is on the brink of a new beginning - the acquisition of a new office space. This marks a fresh start for our company's development, and we eagerly anticipate crafting a brighter future in this new environment. The selected location enjoys excellent geographic positioning, convenient transportation, and a pleasant environment. The choice of our new office space has been meticulously considered, aiming to provide our employees with a spacious and comfortable working environment while offering ample support and motivation for the company's development. Starting from April 15, 2024, our office address will be changed to: [Unit 3104, Channel Pearl Plaza, No.99 Yilan Road, Siming District, 361008, Xiamen City, Fujian Province, China]。This relocation is not only a natural choice for the continued development of our company, but also a testament to our confidence and aspirations for the future. The utilization of the new premises will further enhance internal collaboration and communication within the company, ignite the creativity and vitality of our team, and elevate our efficiency and service standards. We aim to deliver even higher-quality products and services to our customers and partners as a result. Finally, we would like to express our heartfelt gratitude for your long-standing support and trust in our company. We believe that this new beginning will bring forth fresh hope and opportunities. We will continue to uphold the principle of 'Customer First, Innovative Development', striving for excellence and working towards our long-term corporate goals. Let us join hands and work together to create a brighter future.