Imported steam valve piston

? Imported valves Overview 
 Valve is using the control valve opening and closing parts of the body to regulate the media, opening the flow, reducing the pressure of the media, while the role of the help of the pressure regulating valve opening and closing parts of the opening, the valve after the pressure was maintained at a certain range within, and in the valve body or valve sprayed into the cooling water, lowering the temperature of the media, such as vacuum reduction valve temperature valve. Characteristics of the valve is in the inlet pressure of changing circumstances, to maintain the value of exports to listen to a certain pressure and temperature range. Valve according to the structure can be divided into thin, spring diaphragm, piston, lever and bellows; by the number of available seat-style man-made single-seat and double seat type; by the location of the disc can be divided into positive -action and reaction type. Pilot valve when the valve's output pressure higher or larger diameter, with a direct voltage regulator spring, the spring stiffness necessarily too large, the flow changes, the output pressure fluctuations, the structure of the valve size will increase. To overcome these shortcomings, can be pilot valves. Pilot valve works with direct-acting basically the same. Pilot gas pressure regulator valve used, is a small supply of direct acting pressure reducing valve. If the small direct acting pressure reducing valve installed in the internal body, then known as the internal pilot type valve; If a small direct-acting pressure reducing valve installed in the main valve outside, is called the external pilot type valve . Figure 14-2 shows the internal pilot type valve structure, compared with direct acting pressure reducing valve, the valve is increased by the nozzle 4, the baffle 3, the fixed orifice 9 and the gas chamber formed by B part of the nozzle baffle amplification. When the distance between the nozzle and baffle small changes occur, it will make B, the pressure in the root of significant changes occurred, causing the diaphragm 10 has a larger displacement, to control the spool 6 moves up and down, the inlet 8-port valve to open large or off small, increase the sensitivity control on the spool, that is, raising the voltage accuracy. 200X pressure reducing valve, is a use of the media to regulate and control its own energy intelligent line pressure valve. For domestic water supply, fire water and other industrial water supply system, by adjusting the relief valve pilot valve, you can adjust the main valve outlet pressure. Outlet pressure is not due to inlet pressure, inlet flow and change, safe and reliable outlet pressure to maintain the vegetation on the set, and can adjust the settings as needed to achieve the purpose of decompression. The decompression valve and accurate, stable, safe, reliable, easy installation and adjustment, long service life. The main control valve fixed the main valve outlet pressure, the main valve outlet pressure does not change due to changes in inlet pressure, outlet flow is not due to changes in the main valve to change its outlet pressure. For industrial water supply, fire water supply and water distribution systems used in daily life. 
 ? Imported valve installation and maintenance 
 1, the valve for easy operation and maintenance, the valves are generally installed in the level of vertical pipe. 
 2, valve installation media should pay attention to the flow of the pipeline and the valve closing direction of the arrow shown on the same. 
 3, after the pressure relief valve to prevent overpressure valve should be at least 4M away from the valve outlet to install a pressure reducing valve. 

 American International Group York (USA Yoco International Group) is a global fluid control one of the major production and supply, the company headquarters are located in the U.S. city of Pittsburgh Steel City, the company is committed to research and development of fluid control valves, fluid control production equipment system, in many countries, the production valve base. Users involved in petroleum products, chemicals, electric power, metallurgy, pharmaceutical, food, water treatment, municipal water supply and drainage, gas, paper, electronic industry, building, mechanical equipment and other fields. 

 American International Group York (USA Yoco International Group) mainly imports manufactured products are imported ball valve, gate valve of imports, import butterfly, import cut-off valve, check valve, import control valve, solenoid valve, trap, safety valve of imports, import relief valve, inlet filter, import exhaust valve, the angle seat valve, cut off valve, flame arrester, breather valve of imports, import plug valves, import balance valve, needle valve import import diaphragm and other excellent suppliers. Working pressure 1.0Mpa-42.0Mpa. Operating temperature: -196 ℃ -650 ℃. Material: copper, cast iron, cast steel, carbon steel, WCB, WC6, WC9, 20 #, 25 #, forged steel, A105, F11, F22, stainless steel, 304,304 L, 316,316 L, Cr-Mo steel, cold steel, alloy steel. 
 Distributed in China: Shanghai cents butterfly doors Co., Ltd. 
 Phone: Contact: Mr. Guo 
 Mobile: 
 E-mail: cnyoco @ / usa_valve @ / shxdfm @ 
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 United States Yoco International Group is of the Asian and Pacific area fluid control domain one of main production and suppliers, the Base company is located at Pittsburgh, the company devotes to the scientific research development fluid control valve, the production fluid control device system, has the production valve base in many countries. The company product s user involves the petroleum, the chemical industry, the electric power, the metallurgy, the drugs manufacture, food, the water treatment, the municipal administration to give draining water, the natural gas, the papermaking, the electronics industry, the building, the mechanical device necessary and so on domains. 

 United States Yoco International Group main product includes: Electrically operated valve, air operated valve, high temperature high pressure valve, ball valve, gate valve, reed valve, cut-off valve, check valve, regulating valve, solenoid valve, safety valve, needle valve, condensate trap |, The draining valve, the stopcock, the diaphragm valve, the duck mouth valve, puts the material valve, the discharge valve, the respiration valve, the filter, the fire barrier, the throttle valve, the angle place valve , the by-pass valve, the wash water valve, the mud valve, the trip valve, the pressure relief valve, the tube to clamp the valve, the plunger valve, the bottom valve, to regard the m