Close the Industrial Valves is closed ( Disc) Move along the seat centerline. According to the mobile form of valve, the seat port to change the relationship between the proportional valve stroke. So open or close the valve stem travel relatively short, and very reliable cutting function, but also because travel is proportional to the port change valve, very suitable for the traffic regulation. Therefore, this type of valve, suitable for cutting or adjust and throttling. Stainless steel electric cut-off valve its selection principle is: 1, the cut-off valve should be used in high temperature, high pressure pipeline medium or device. Coal-fired power plant, nuclear power plant, petrochemical industry system of high temperature, high pressure pipe. 2, the strict requirements of diffusion resistance line pipes. That is, the pressure loss is not considered. 3, small needle type valve, instrument valve, the sampling valve, pressure gauge valve selection. 4, flow regulator and pressure regulator, but to adjust the accuracy is not high, and the diameter of the tube and relatively small, such as nominal 50 mm or less should choose through the pipes. 5, synthetic fertilizer industry production of large and small chemical fertilizer should be used nominal PN160 nominal pressure of 16 mpa or PN320 nominal pressure of 32 mpa pressure Angle globe valve or high pressure throttle Angle. 6, bayer process of alumina production workshop desilication, easy to coking, convenient choice fission, seat, carbide seal of once-through cut-off valve or dc throttle. 7, water supply, heat supply engineering, nominal through a small tube, the selection of the production, the balancing Industrial Valves or plunger valve, such as urban construction is less than the nominal drift diameter pipe of 150 mm. The most obvious advantage is: in the process of opening and closing, because the body than the gate seal surface friction between the small, so wear and tear. The height of the seat is usually only about a quarter of the open channel diameter, so much smaller than gate valves. Typically on the valve body and valve sealing surface is only one, therefore, manufacturing process is better, easy to maintenance. Nominal pressure or pressure, PN1. 0 - 16. 150 - 0 mpa, ANSI类 900，JIS10- 20 k or nominal diameter diameter: DN10 ~ 500, NPS 1/2 ~ 36 'temperature flange, welding, thread: : connection - 196 ℃ ~ 700 ℃ drive mode: pneumatic, electric, hydraulic, pneumatic hydraulic linkage valve body material: WCB, ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti, CF8 ( 304). 恶( 304 l) ,CF8M ( 316). 、CF3M ( 316 l) And titanium. Stainless steel electric globe valves of different material choice, can be respectively suitable for water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and other media.
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[拓展名称] include a great variety of devices with a wide range of complexity: from simple cast iron gate valve used since prehistoric times to the complex of modern mechanized resilient seated valve.