Hedge circulation regulating valve

Changzhou and Shanghai Valve Valve Co., Ltd., the industry leader. Skilled, stable circulation hedge regulating valve quality, attractive appearance, specifications, models, full range, affordable, quality assurance, and carefully build quality valves, advanced equipment. Trustworthy, shipping Quick, to provide professional technical advice and after-sales service are welcome. The company has the world's leading production equipment and technical engineers, have the ability to national standards as well as various industry standards for manufacturing quality valves. Product name: Hedge circulation control valve Model: Diameter: DN15-200 product pressure: 0.6 ~ 32.0Mpa Material: steel, stainless steel, alloy steel Description: Manufacturing Standard: China GB, the Department of Mechanical JB, chemical industry standard HG , American Standard API, ANSI, German standard DIN, Japanese JIS, JPI, British standard BS production. Body material: copper, cast iron, cast steel, carbon steel, WCB, WC6, WC9,20 #, 25 #, forged steel, A105, F11, F22, stainless steel, 304, 304L, 316,316L, chromium molybdenum steel, cold steel, titanium alloy steel. Working pressure 1.0Mpa-50.0Mpa. Working temperature: -196 ℃ -650 ℃. Connection: internal thread, external thread, flange, welding, butt welding, socket welding, card sets, clamp. Operation: manual, pneumatic, hydraulic, electric. Product Details circulation hedge valve Overview: For a long time, thermal power plants unit operation, control and regulation of warm water reduction has been a big problem. Since the control valve in the system pressure drop big, regulating valve of conventional construction have severe cavitation phenomenon. Cavitation valve seat of great destructive power, in the event, as many as two or three months, at least twelve weeks, seat sealing surface that is seriously damaged. So that leakage of more than 30% of the rated flow, control valve that is lost off function, affecting the normal operation of the unit. Secondly, the system becomes pressure regulating valve in the working conditions, the valve flow characteristics inherent serious distortion. Sometimes the valve opening at 40%, the maximum flow rate that is not overall control. Currently, the country imports most of the reduction valve unit with warm water, these valve replacement and maintenance is very difficult. When updating long-ordering cycle, repair and replacement of parts is also very difficult. Especially in case of any malfunction, the problem is even greater. Foreign suppliers can not be in time to help solve. Seriously affect the normal operation of the plant. Circulation of hedge schematics hedge Circulation control valve is in the porous anti-cavitation sleeve valve, multi-stage spool throttle valve, developed maze laminated valve on the pressure differential regulating valve cavitation a new generation of products. Hedge Circulation Control valve key parts - hedge Circulation disc, using a special structure and process. The disc and the popular labyrinth disc compared to a similar shape and function and principle there is a huge difference. The labyrinth disc is processed on a wafer number of road separate grooves, groove path is tortuous and winding. By ten times or even dozens of times to change the direction of flow, to increase the resistance and step-down, it can prevent cavitation and cavitation process in the buck. Hedge Circulation disc has the same purpose, there are people at the victory of a chip. Hedge Circulation disc in the disc also processed several channels to ten the number of road trench. Its trench through the center of each ring groove and radial grooves. The flow path between the adjacent can communicate. Fluid flows into the inner ring via the outer radial slots. In the flow process, the portion of the fluid into two, go back flow. Another part of the fluid one, opposite the confluence. High-speed flow generation molecular impact, friction and whirlpool, large consumption of energy. So that the pressure can be more effectively reduced. Pressure drop results than general import labyrinth disc is better, anti-cavitation better. Longer service life. The number and size of the grooves on each disc vary, depending on the pressure of different systems and design of the disc has a different flow resistance. So that the valve opening degree can have a different line with the requirements of traffic. In other words, he was able to compensate for actual conditions better flow characteristics of distortion. Automated flow system makes adjustment more sensitive and effective. Hedge Circulation control valve, fluid dynamics in industrial automation and control of a great application that allows high differential pressure control valve research and application to a new level. It is a strong support we provide for the power industry and other industries safe and efficient operation. NOTE: butt welding connection sizes can be designed according to the pipe size. Circulation of hedge valve Uses: This product is mainly used for thermal power generation boilers and petrochemical high pressure control system, can be used as: 1. superheater and reheater warm water main water recirculation valve 2. 3. boiler continuous blowdown valve adjustment valve 4. ammonia, urea synthesis, high pressure regulating valve 5. The feed pump minimum flow valve cycle