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Zhejiang Haoli Valve Co., Ltd
Basic principles and application areas of soft sealed ball valves
Date: 2025-07-01Read: 16
Soft sealed ball valves, as an important fluid control equipment, are widely used in industries such as petroleum, chemical, power, and metallurgy. Its main feature is the use of a soft sealing structure, which has good sealing performance and wear resistance, and can effectively control the flow of fluids to ensure the safe operation of the system.
Soft sealed ball valveThe basic principle is:
1. Ball and valve seat sealing: The core component is the ball, which has a through passage. The sphere is connected to the valve body through the valve stem and can rotate around the valve stem. When the channel of the sphere is aligned with the pipeline channel, the valve is in the open state and the fluid can flow freely; When the sphere rotates 90 degrees, the channel is misaligned with the pipeline, the valve closes, and fluid flow is blocked.
2. Soft seal design: Unlike traditional hard seal ball valves, flexible materials are used as the sealing medium. Common sealing materials include polytetrafluoroethylene (PTFE), rubber, etc. The soft sealing structure can achieve better sealing performance, especially in high-pressure and high-temperature environments, and still maintain excellent sealing performance.
3. Coordination between valve seat and sphere: The sealing surface is designed to provide a soft seal between the sphere and the valve seat, which can provide high sealing performance. The sealing surface between the sphere and the valve seat is often made of wear-resistant and corrosion-resistant materials to ensure that there will be no leakage during long-term use.
Application areas of soft sealed ball valves:
1. Petrochemical industry: In the field of petroleum and chemical engineering, it is widely used for fluid control, such as the transportation of oil and gas, the production and processing of chemicals, etc. Its excellent sealing performance can effectively prevent medium leakage and ensure safe operation.
2. Power industry: Used for fluid control of equipment such as boilers and turbines in the power industry, especially in high-pressure and high-temperature environments, to maintain stable sealing performance and ensure the normal operation of equipment.
3. Water treatment industry: In the water treatment industry, it is commonly used in water treatment pipeline systems to effectively control water flow and ensure the stability and safety of the water supply system.
4. Food and pharmaceutical industry: Due to its good hygiene performance, it is commonly used in fluid control in industries such as food and pharmaceuticals. It can effectively prevent bacterial growth and is easy to clean, meeting hygiene requirements.
5. Building and HVAC systems: widely used in building and HVAC systems to control the flow of cold and hot water, steam, air and other media, and maintain stable system operation.