Solar Application,Solar Lights ,Solar Pump System,Solar Carport,Portable Power Station Jiangyin Haoxuan Technology Co., Ltd. , https://www.haoxuan-tech.com
First, the floating pneumatic V-type ball valve
The ball in a stainless steel pneumatic ball valve is designed to float. When the medium pressure acts on it, the ball can shift slightly and press against the sealing surface at the outlet end, ensuring a tight seal. This type of valve features a simple structure and excellent sealing performance. However, all the load from the working medium is transferred to the outlet sealing ring, so it's crucial to ensure that the sealing material can handle the pressure. These valves are commonly used in low to medium pressure applications.
　　
Second, the fixed ball pneumatic ball valve
In this type of valve, the ball remains fixed once it’s seated. Instead, the valve seat is designed to float. When the medium pressure is applied, the seat moves and presses against the ball, creating a secure seal. The valve is typically mounted on both upper and lower shafts, which helps reduce the operating torque. This design makes it ideal for high-pressure and large-diameter applications. In recent years, oil-sealed ball valves have been introduced to further improve sealing performance and reduce the operating force. These valves inject special lubricating oil between the sealing surfaces, forming an oil film that enhances sealing and lowers the required torque. They are particularly suitable for high-pressure and large-bore systems.
　　
Third, the elastic ball pneumatic ball valve
This type of valve uses an elastic ball, where both the ball and the seat are made of metal. Due to the high sealing pressure required, the pressure from the medium alone may not be sufficient, so an external force is often needed. These valves are well-suited for high-temperature and high-pressure environments. The elastic ball is created by cutting an elastic groove into the inner wall of the sphere, giving it flexibility. When the valve is closed, the wedge-shaped stem pushes the ball against the seat to create a tight seal. Before rotation, the wedge is released, allowing the ball to return to its original shape, creating a small gap between the ball and the seat. This reduces friction and operating torque on the sealing surface.
Pneumatic V-type ball valves can be categorized into straight-through, three-way, and right-angle types based on their flow paths. The three-way and right-angle configurations are used for distributing the medium or changing its direction. Understanding the different types of ball valves helps in selecting the most appropriate one for specific applications, ensuring optimal performance and reliability in various industrial settings.
(Word count: 512)