Electric Ball Valves Manufacturers

The electric Ball Valves is composed of an electric actuator and a ball valve. It is a kind of pipeline pressure element for industrial automation process control, which is usually used for remote opening and closing (switching on and off) control of pipeline medium. The electric ball valve is driven by the valve stem and rotates around the axis of the valve stem. It is mainly used to cut off or connect the medium in the pipeline, and it can also be used for the regulation and control of the fluid. Among them, the hard sealed V-shaped ball valve has a strong shear force between its V-shaped ball core and the metal valve seat of hardfacing hard alloy, which is especially suitable for the medium containing fiber and small solid particles. Electric ball valve is divided into electric flange ball valve, electric wafer ball valve, electric welding ball valve and electric screw ball valve. According to the sealing form, it is also divided into soft seal electric ball valve and hard seal electric ball valve.

The electric ball valve has a simple structure and is composed of only a few parts, which saves data consumption; Small volume, light weight, small installation size, small driving torque, pressure regulating valve, simple and agile operation, and can be quickly opened and closed by rotating 90 °; At the same time, it also has good flow regulation effect and sealing characteristics. In the application of large and medium calibre, medium and low pressure, electric ball valve is the dominant valve situation. When the electric ball valve is fully opened, the butterfly plate thickness is the resistance when the medium flows through the valve body. Therefore, the pressure drop through the valve is very small, so it has good flow control characteristics. The electric ball valve has two sealing types, namely, elastic seal and metal seal. Elastic sealing valve, the sealing ring can be embedded on the valve body or attached to the periphery of the butterfly plate. Valves with metal seals generally have a longer life than those with elastic seals, but it is difficult to achieve complete sealing. Metal seal can adapt to high working temperature, while elastic seal has the disadvantage of being limited by temperature. If the electric ball valve is requested to be used as flow control, it is important to accurately select the size and type of the valve. The construction principle of electric ball valve is especially suitable for manufacturing large-diameter valves. Electric ball valves are not only widely used in oil, gas, chemical industry, water treatment and other general industries, but also used in the cooling water system of thermal power stations. There are two kinds of commonly used electric ball valves: wafer type electric ball valve and flange type electric ball valve. The wafer type electric ball valve connects the valve between the two pipe flanges with stud bolts. The flange type electric ball valve has flanges on the valve, and the flanges at both ends of the valve are connected to the pipe flanges with bolts. The strength performance of the valve refers to the ability of the valve to withstand medium pressure. Valves are mechanical products subject to internal pressure, so they must have sufficient strength and rigidity to ensure long-term use without cracking or deformation.

The function is a kind of pipeline pressure element for industrial automation process control, which is usually used for remote opening and closing (connecting and cutting off) control of pipeline medium.

Features: the integrated structure is adopted, and the operation can be controlled by single-phase power supply AC220V and DC power supply 24VDC; Small size, light weight, reliable performance, simple matching and large circulation capacity.

The electric ball valve has the action of rotating 90 degrees. The plug body is a ball with a circular through hole or channel passing through its axis. The ball valve is mainly used as an electric ball valve in the pipeline to cut off, distribute and change the flow direction of the medium. It only needs to rotate 90 degrees and a small rotating torque to close tightly. The ball valve is most suitable for switching and shut-off valves. The development has designed the ball valve to have throttling and flow control functions, such as V-type ball valve. The main characteristics of the electric ball valve are compact structure, reliable sealing, simple structure and convenient maintenance. The sealing surface and spherical surface are always closed, which is not easily eroded by the medium, and easy to operate and maintain. It is suitable for general working media such as water, solvent, acid and natural gas, and also suitable for media with poor working conditions, such as oxygen, hydrogen peroxide, methane and ethylene. It is widely used in various industries. The valve body of the ball valve can be integral or combined.

principle

The electric ball valve is composed of a plug type ball valve and an electric actuator. The valve body structure of the ball valve is a 90 degree rotating valve core. The electric actuator inputs a standard signal of 0-10 ma. The motor unit drives the angle torque of the gear, worm wheel and worm to adjust the valve with the switch box. Its use is mainly generated by the electric flow and the regulating operation.

form

The commonly used electric actuators include multi rotation, single rotation, intelligent, angular stroke actuator, straight stroke electric actuator, explosion-proof actuator, fine and small actuator, etc. The ball valves mainly include floating ball valve, fixed ball valve, O-type ball valve, V-type ball valve, three-way ball valve, etc. The combination of its actuator and ball valve can produce diversified products. The control box can also be added to the actuator for remote operation. At the same time, other accessories can be added to the actuator to achieve more functional applications. For example, the electric positioner can be added to adjust the flow, the resistance / current valve position converter can be used to indicate and control the valve position opening, the handwheel mechanism can be manually operated when there is no current, and other commonly used accessories include insulating sleeve and explosion-proof travel switch. The initial type selection can be made according to the working conditions.

application

Electric ball valve has been widely used in oil, natural gas, medicine, food, hydropower, nuclear power, power, water supply and drainage, heating, metallurgy and other industries. It is a mechanical product of vital importance for national defense construction. It is also an indispensable product for scientific and technological construction. It occupies a lot of market shares, mainly because of the strong function, small size, reliable performance, large circulation capacity, light and pleasant, remote control and other reasons, the electric ball valve is not only a good product for throttling, cutting off, switching off and diverting, but also the first choice in the flow regulation system. It has many characteristics such as pressure resistance, temperature resistance, corrosion resistance, small flow resistance, long service life and wide application range.