Valve fittings also include various accessories, such as valve actuators. Valve actuators are devices used to control the opening and closing of valves, and can open or close the valve through electric, hydraulic, or pneumatic means. The function of this mechanism is to automate valve operation, improving work efficiency and safety. Additionally, there are valve seals, used to ensure the valve's sealing performance and prevent fluid leakage. Valve seals are usually made of materials such as rubber and metal, and have properties such as high temperature resistance and corrosion resistance.
Valve fittings also include components such as valve stems, valve covers, and valve seats. The valve stem is the connecting component between the valve actuator and the valve disc; the up-and-down movement of the valve stem controls the opening and closing of the valve disc. The valve cover is used to seal the upper part of the valve to prevent fluid leakage. The valve seat is an annular component inside the valve, used to support the valve disc and seal the valve. The function of these components is to ensure the normal operation and sealing performance of the valve.
