Hemisppheerrical Valve

Hemisppheerrical valve,a new type of quick-opening and closing valve,is the most popular and efficient valve in the pneumatic ash conveying system of coal burning power plants.It is  mainly  used in the feeding of dry ash and dry powder in pneumatic conveying systems in the fields of electric power,metallurgy,food,chemical and phamaceutical industries.

• Flexible  to open and shut.When opening or shutting,the distance between ball core and silicon seal remians at 0.8-1.5mm,without direct contact or strong friction.Flexible and reliable operation.Long service life.When the valve is opened,the inlet is fully opened without any blockage,which avoids the direct ontact between fluid and ball core.

• Perfectly sealed.hemisppheerrical valve is sealed by inflatable silicon seal,which has a great sealing performance.When the valve is closed ,the silicon seal is inflated,closing attaching to the ball core and forming a sealing loop,thus effectively cutting off the fluids inside the pipe.

• Strict requirements for materials.Professional techniques for production.The most  fundamental technology of hemisppheerrical valve lies in the ball core.To meet requirements of different working conditions,different materials will be selected to make the ball core resistant to wearing and flushing of fluids.Its somooth and hard surface ensures the close contact between the ball core and silicon seal.Sealing can thus be effected.

• Automatic control and reliable operation.The pneumatic actuator is driven by a fully enclosed rotary rod,with rotary output,reliable performance and large output torque,which can meet requirements in harsh working conditions.