Applications of electric eccentric hemispherical valves

Thread Content

　　Main features of the electric eccentric hemispherical valve: there are no issues such as jamming or separation between the valve seat and the ball, it provides good sealing, and has a long service life. The electric eccentric hemispherical valve features a shear action between the V-shaped cut ball core and the metal seat, making it suitable for media containing fibers, fine solid particles, and slurries. Pulp that is suitable for controlling the papermaking industry is preferred. A practical variant of the ball valve, equipped with a 90° rotating electric actuator on its actuation mechanism, this design makes it easier for users to operate the valve and enables remote automated control. It expands the range of applications for hemispherical valves, especially in harsh environments where manual operation is difficult or when continuous operation is required; in such cases, the dual-eccentric hemispherical valve is fitted with an electric actuator along with automated computer control. Ball valves are easy to operate, compact in size, can be manufactured in large diameters, offer good sealing performance, have a simple structure, and are easy to maintain. The sealing surface and the ball surface remain in a closed state, making them resistant to erosion by the medium flowing through them; therefore, they are used in various industries. 　　This valve possesses the advantages of a double-eccentric hemispherical valve, such as low opening force, the ability to overcome scaling obstacles for proper sealing, and low wear resistance. Made of corrosion-resistant materials, it is ideally suited for use in environments involving water, steam, sewage, papermaking, petrochemicals, natural gas, two-phase mixtures of solutions and slurries, as well as dusty gases, fluid systems containing particles, and powdered solid media. It operates electrically, which makes it more convenient for automation and remote control; equipped with electrical signaling devices, it can be used for automated operation and centralized control. 　　Electric eccentric hemispherical valves are suitable for applications in sewage treatment, pulp production, alumina production, and situations where strict requirements are imposed on urban heating systems ； Suitable for control in power plants, hydraulic slag removal systems, or gas transmission pipelines. 　　The eccentric structure of the sealing surface allows the spherical surface to automatically compensate for wear, thereby maintaining the valve’s seal and ensuring a long service life. Ball valves are easy to operate, compact in size, can be manufactured in large diameters, offer reliable sealing, have a simple structure, and are easy to maintain. The sealing surface and the ball surface remain in a closed state, making them resistant to erosion by the medium. This product is equipped with a pneumatic actuator for two-action partial rotary valves in the single and double-cylinder series. Controlled by solenoid valves, it enables remote automatic operation. It takes advantage of the features of the eccentric hemispherical valve (users of pneumatic systems can also choose their own model). 　　There are two types of paint for valve surfaces: normal temperature and high temperature. A high-temperature resistant paint with a temperature tolerance of 600°C – after application, it does not burn, carbonize, or charring when used in high temperatures, nor does it change color. Ball valves are primarily used in pipelines to shut off flow, distribute it, and change the direction of the fluid flow. Two-piece ball valves and three-piece ball valves are new types of valves that have been widely used in recent years; pneumatic half-ball valves are also increasingly being adopted in various industries. 　　The electric eccentric hemispherical valve, also known as V-ball valve, is suitable for use in various pipelines with pressures ranging from 150 to 600 LB and PN values from 1.6 to 6.4 MPa, as well as in applications where the operating temperature is ≤300°C (custom versions for higher temperatures are available). It is used to regulate the pressure and flow rate of the medium flowing through the pipeline. By selecting different materials, it can be used with various media such as water, steam, oils, nitric acid, oxidizing agents, urea, ammonium salts, and neutralized water.