electric regulator according to adjust the position signal, automatic control valve opening, so as to achieve the adjustment of the medium flow rate, pressure and liquid level. With commonly used 4 - 20 ma current signal, the control system for electric control valve signal is 4 ma, regulating valve in full close state, and to its 20 ma signal, regulating valve in full close state. 4 - 20 ma among different signal values corresponding to different valve opening, the control system for its 12 ma signal regulating valve opening of 50%. Choose according to their working medium for flow coefficient, can calculate the corresponding flow, pressure regulator each opening. To meet the requirements of regulator to adjust the working medium. Electric control valve is made up of electric actuators and connected to the valve body after combination after assembly, commissioning the installation of mechanical connection. Electric control valve working principle is through the actuators with servo function, accept unified ( 4 - Ma or 1-20 5伏直流电) The standard signal, to drive the change between the cross-sectional area of the valve core and valve seat valve size control. Convert current signal to the corresponding linear displacement, automatically control the valve opening, to achieve the fluid inside the pipeline pressure, flow, temperature, liquid level and other process parameters of continuous adjustment and control.

electric regulator structure characteristics 1, electric control valve has a small volume, light weight, simple wiring and large flow, high accuracy, etc, are widely used in electric power, petroleum, chemical industry, metallurgy, environmental protection, light industry, teaching and scientific research industries such as industrial process equipment automatic control system. 2, electric regulator valve components: valve core type: guide single-seat ( The sleeve) Type plunger valve core 3, flow characteristic: linear features, such as percentage or quick opening properties

electric control valve flow characteristics:

electric flow characteristic of regulating valve, is on both ends of the valve differential pressure under the condition of constant, medium flows through the electric control valve of the relation between relative flow and its opening. Flow characteristics are: linear features, such as percentage and parabolic characteristics of three.

electric valve electric principle:

electric regulator of the motor power supply ( 220 v or 380 v) , the control signal, 4~20mA） , there is a controller, Industrial Valves controller to convert current signal to the Angle of the stepper motor trip signal, motor rotation, by gears, levers, or gear lever, drive the stem, straight stroke or Angle of stroke. Feedback: the motor running, through the gear run, by the slide rheostat SanJieTou output valve positioning signal, and limit signals of three wires ( Full open and full closed, public line) 。

electric regulator basic parameters:

use temperature: room temperature 29 ℃ ~ 425 ℃ low temperature - 46℃~- 196 ℃

pressure range: 1. 6 MPa ~ 16 MPa

the valve material: WCB steel casting, CF8 stainless steel

work power: DC24V, AC220V, AC380V

input signal: DC4 - 20MA、DC1- 5 v

feedback signal: DC4 - 20 ma load electric block below 500 ohm

body structure: sleeve, single seater, two-seat type, three general formula, right Angle type

The use and installation of flow control valve is compared with most other systems for managing the resilient gate valve effectively and no doubt gate valve have won the race so many times.
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