Lixin Valve Group Co Ltd

The use of check valves allows us to control fluid backflow, improving the efficiency of fluid systems. Swing check valves are widely used in fluid systems due to their unique advantages. This article will introduce swing check valves from several different perspectives, gradually unveiling their mysteries to assist you in selecting the right swing check […]

Valve World Asia Expo & Conference 2024: Lixin Valve Group Co., Ltd. Invites You to Booth A49 We are thrilled to announce that Lixin Valve Group Co., Ltd. will be participating in the Valve World Asia Expo & Conference 2024. This prestigious event will take place on July 3-4 at CECIS in Shanghai, China. As […]

Hi there! The article is about API 6D Plug Valves, which are essential components in pipeline systems for regulating fluid flow. You will benefit from understanding their construction, operation principles, and the variety of types available, such as lubricated and non-lubricated valves. Knowing this ensures informed decisions in selecting valves for specific industrial applications, ensuring […]

Lixin Valve Group Co., Ltd will be participating in the BTF Exhibition in China from March 14 to 16, 2024.   Welcome to our booth! Our booth number is 4345.   We look forward to meeting you at the exhibition and sharing our latest products and innovations. Please remember our booth number, we look forward […]

Butterfly valves are a type of valve that uses a rotating disk to control the flow of fluid. They are commonly used in HVAC, plumbing, and industrial applications. Butterfly valves are relatively easy to install, but there are a few steps that you should follow to ensure a proper installation. Materials Butterfly valve Flanges or unions Gaskets Bolts and nuts Wrench Pipe sealant   Step 1: Prepare the valve and flanges Before you begin the installation, you need to prepare the valve and flanges. This includes cleaning the surfaces of the valve and flanges, and applying a thin layer of pipe sealant to the gaskets.   Step 2: Assemble the valve and flanges Once the valve and flanges are prepared, you can begin to assemble them. Place the valve between the flanges, and align the bolt holes. Insert the bolts and nuts, and tighten them until the valve is securely in place.   Step 3: Connect the piping Once the valve is assembled, you can connect the piping. Be sure to use the correct size and type of pipe for the application.   Step 4: Test the valve Once the piping is connected, you can test the valve to make sure it is working properly. Open the valve and close it several times to check for leaks.   […]

Construction Butterfly valves are typically constructed with a cast iron or stainless steel body and a rubber or plastic disc. The disc is attached to a shaft that is supported by bearings at each end. The shaft is turned by a handle or actuator, which can be manual or automated. Advantages Butterfly valves offer a number of advantages over other types of valves, including: Compact size: Butterfly valves are relatively small and lightweight, making them easy to install and maintain. Low pressure drop: The streamlined design of the butterfly valve results in a low pressure drop, which can save energy costs. Quick operation: Butterfly valves can be opened or closed quickly, making them […]

Step 1: Determine Fluid Characteristics Identify the type of fluid being handled (e.g., water, oil, gas, chemicals). Consider fluid properties such as temperature, pressure, viscosity, and corrosiveness.   Step 2: Specify Pressure and Temperature Requirements Determine the maximum pressure and temperature that the valve will experience. Select a valve with a pressure rating and temperature range that meet or exceed these requirements.   Step 3: Calculate Flow Rate Determine the desired flow rate through the valve. Calculate the valve size based on the flow rate and pipe diameter using flow equations or manufacturer‘s guidelines.   Step 4: Choose Valve Type Standard Butterfly Valves: Suitable for general applications with moderate pressure and temperature requirements. High–Performance Butterfly Valves: Engineered for demanding applications requiring tight shut–off, low torque, and extended service life. Triple Offset Butterfly Valves: Ideal for high–pressure and temperature applications due to their triple offset design, which ensures complete sealing.   Step 5: Select Body and Seat Materials Choose materials that are compatible with the fluid being handled and can withstand the operating conditions. Common materials include cast iron, ductile iron, stainless steel, and exotic alloys.   Step 6: Determine Actuator Type Manual Actuators: Suitable for infrequent operation or applications where precise control is not required. Electric Actuators: Provide remote operation and precise control, ideal for automated systems. Pneumatic Actuators: Offer fast response times and high torque, suitable for high–pressure applications.   Step 7: Consider Additional Features Lugs or Flanges: Select valves with lugs for direct mounting to flanges or piping systems, or flanges for secure and leak–proof connections. Sealing Options: Specify resilient seats for general applications or metal seats for high–temperature and corrosive environments.   Step 8: Verify Compliance and Certifications Ensure that the valve meets industry standards and certifications (e.g., ANSI, API, ISO). Consider valves with third–party approvals for specific applications (e.g., fire safety, nuclear).   Conclusion By following these steps and considering the factors discussed above, engineers and professionals can select the right butterfly valve for their specific application. Proper valve selection ensures optimal flow control, system efficiency, and long–term reliability.     External Resources How to Size a Butterfly Valve   Additional Information Table: Butterfly Valve Selection Criteria Criteria Considerations Fluid Characteristics Type, temperature, pressure, viscosity, corrosiveness Pressure and Temperature Requirements Maximum pressure and temperature ratings Flow Rate Desired flow rate and pipe diameter Valve Type Standard, high–performance, triple offset Body and Seat Materials […]

Knife gate valves are a type of industrial valve for flow control of liquids and gases. They are typically used in applications where a high level of flow control is required, such as in chemical processing, water treatment, and mining.   Advantages of Knife Gate Valves 1.Tight shutoff: Knife gate valves provide a very tight […]