This manual cast steel hard-seal ball valve utilizes advanced spray coating technology to achieve a hardness of up to HRC 78, resulting from treatment for various operating conditions. The seat sealing surface is treated to a hardness of up to HRC 72. The ball and seat are ground to a precise finish, and all sealing areas of the entire ball valve are precision-ground. This valve is suitable for high-temperature, high-pressure water, steam, oil, coal, fiber, viscous and corrosive media, and media containing particles. Metal-seal ball valves are available in floating and fixed ball configurations. A metal seat ring contacts the ball surface, creating a seal through a uniform spring load.
Many current technical applications are seeing advancements in safe and efficient actuation devices. For example, pneumatically powered valves enable repetitive opening and closing. The application of this type of hard-seal fixed manual ball valve enriches the range of fluid control solutions in chemical processes. This hard-seal fixed manual ball valve provides a superior solution for the management and safe control of industrial fluids.

1. Improves the safety and reliability of the overall pipeline design.
During operation, pneumatic devices convert kinetic energy into motion, eliminating the need for power or a fire source. In some chemical and petroleum industries, spark and combustion monitoring are highly demanding. This type of hard-seal fixed manual ball valve can be controlled by compressed gas. Therefore, in flammable and explosive environments, this hard-seal fixed manual ball valve provides superior safety, enhancing the safety of the entire pipeline and the flow of fluids.
2. Improves valve durability and effectiveness.
A survey of manufacturers currently using hard-seal fixed manual ball valves revealed that this type of valve is relatively simple to install and requires minimal maintenance. Furthermore, due to its simple structure, low wear resistance, and strong component repair and recycling capabilities, a systematic approach can ensure a long service life. For long-term equipment use, using a hard-seal fixed manual ball valve can also save overall costs and facilitate maintenance and replacement.

