Electric control Industrial Valves is equipped with high and low pressure heater, in order to ensure the heater have running water, no water running, prevent heater steam turbine at the next higher level extraction steam into the next level by extraction steam turbine efficiency and the safety of the equipment, electric control valve in the drain system of heater has hydrophobic regulator, it according to the water heater signal, automatic switch hydrophobic adjust valve opening, make the water level of heater always stay within a certain range. Drain valve working condition is very poor, a lot of work under the conditions in the two phase fluid ( The soda mixed state) Heaters are not guaranteed water level is running, so it reduces the operation economy of the steam turbine. So, choose the cavitation is small, low noise, simple structure, reliable performance of the drain valve is particularly important. Research in view of the working condition of the above requirements, our factory design and manufacture a new type of drain valve, which is on the basis of the original hydrophobic regulator, and absorb foreign experience, on the structure, material are reformed, so that the valve has good work performance. Due to using reasonable valve core and valve seat contact Angle, so the valve in the closed without leakage phenomenon; Manufacturer of flow and the valve core material the use of the high quality stainless steel material, even in the condition of two phase flow and throttling operation, cavitation is quite slow, thus extending the service life of the valve, the noise is very small. design adopts simple structure of the installation, when the internal parts damaged, as long as you remove the valve cover nut, can take out the parts in turn, arbitrarily change any spare parts, maintenance is very convenient. Electric regulator is connected by electric actuator and valve combination after mechanical connection after assembly, commissioning the installation of electric regulator. Main component parts material: valve body, valve cover, packing gland, stem, disc, seal ring, indicator, stem nut, nut set of materials: working principle of the gray cast iron, cast steel, stainless steel, brass work power: DC24V, AC220V, AC380V voltage grade, etc. The input control signals: DC4 - Ma or DC1-20 5V。 The feedback control signal: DC4 - 20MA（ Electric load block below 500 ohms) By receiving industrial automation control system of the signal, Such as: 4 ~ 20 ma) To drive change valve core and valve seat between the cross-sectional area of the pipeline medium size control of process parameters such as flow rate, temperature, pressure and etc. Automated regulating function. New type of electric valve actuators embedded servo function, 4 - accept reunification Ma or 1-20 5 v DC standard signal, 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. Flow characteristic of electric flow characteristic of regulating valve, it 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. Electric control valve flow characteristics are: linear features, such as percentage and parabolic characteristics of three. Application fields of electricity, chemical industry, metallurgy, environmental protection, water treatment, light industry, building materials, such as industrial automation systems. Xuan an intelligent electric control valve is a kind of pressure balance type regulator. With RQM series intelligent electric actuators, the overall structure is compact, light weight, good stability, high protection grade. Therefore widely used in large thermal power plants, chemical plants, water treatment and sewage disposal, gas oil fields, steel mills, such as automatic adjustment system. The major parts material body and bonnet: HT200, ZG230 - 450, ZG1Cr18Ni9Ti valve core and Industrial Valves seat: 1 cr18ni9ti, department of titanium alloy valve stem, push rod: 2 cr13, 1 cr18ni9ti bushing: 2 cr13 packing: ptfe, flexible graphite, stainless steel corrugated main technical parameters of main technical parameters of electric actuator output thrust: 44 ~ 550 kn ( The output thrust: 5. 71-47. 05年kn) ( Output rated closing thrust: 8. 4-63. 15 kn) The basic error: (position control Set the travel time 25 seconds or higher) Repeatability error: (plus or minus 1% Set the travel time 25 seconds or higher) 1% or less dead zone: 0. 1% ~ 9. 9% adjustable output start frequency measurement under the rated load check: 1200 / hour input signal: 4 ~ 20 ma / 100 Ω, 2 ~ 10 ma / 100 Ω, DC24V switch quantity. Power supply: 380 + 10% for VAC, 50 hz relative humidity: 95% or less environmental temperature: - Level of 30 ℃ ~ + 70 ℃ explosion-proof: Exd Ⅱ BT4 expanding prevention level: IP68 input/output channel adopts photoelectric isolation

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