There are significant differences between electric butterfly valves and electric flapper doors in a number of respects:
Structure and how it works:
Electric butterfly valve is mainly composed of valve body, valve seat, butterfly plate, valve stem, transmission mechanism and other parts. Its working principle is that the butterfly plate rotates around an axis within the cylindrical channel of the valve body, opening, closing and regulating the fluid channel by changing the angle of rotation. This valve has simple structure, small volume, light weight, small driving torque, good fluid control characteristics and closing and sealing performance.
Electric baffle doors are mainly used for operation isolation on smoke and air ducts with low dust concentration and lax leakage requirements in power plants. It is mainly composed of valve body, plate, valve stem, driving device and other parts. It has two functions of full opening and full closing, flexible opening and closing rotation and tight closing. The baffle-type isolation door itself does not come with any driving device, so it can be selected according to needs, or it can be supplied by the baffle manufacturer.
Switching mode and driving force:
Electric butterfly valves usually use manual rotation or motor or pneumatic device to control the drive shaft to realize the opening and closing of the valve.
Electric baffle doors use electric or pneumatic devices as driving forces to drive the opening and closing of the valves.
Scope of application:
Because of its special structure, electric butterfly valve is more suitable for pipelines and devices that convey clean, low viscosity, non-corrosive solid, liquid and gas media.
Electric baffle door is mainly used in smoke and air ducts of power plants, but also suitable for cold and hot air ducts or flues, as well as flue gas desulfurization or flue gas dust removal systems, and plays the role of shutting off and isolating.
To sum up, there are significant differences between electric butterfly valve and electric baffle door in terms of structure, working principle, switching mode, driving force and scope of application. When choosing which valve to use, a comprehensive consideration is required based on the specific process requirements, working environment, and fluid media characteristics.