Shanghai Shen Hong Valve Manufacturing Co., Ltd.   

Shanghai Shen Hong Valve Manufacturing Co., Ltd. is a key manufacturing enterprise specializing in manufacturing and operating all kinds of high and medium pressure valves. Our company has more than 180 sets of machine tools and machining equipment, such as CNC machine tools, plasma spray welding, etc., with CAD valve design center and technology consulting center and modern valve quality testing and testing center. It has a series of testing capabilities such as chemical composition analysis, mechanical performance test, ultrasonic and bruway hardness testing, ultrasonic wall thickness testing, ultrasonic flaw detection, magnetic particle inspection, coloring flaw detection, X ray flaw detection, metallographic analysis, spectral analysis, valve life test and ultra-high pressure valve performance test and so on. The valve parts are machined by CNC machine tools to ensure product accuracy and interchangeability. The valve sealing surface has adopted the advanced automatic surfacing equipment and the wear resistant and high-temperature resistant Si Taili (Stellite) cobalt based cemented carbide material in the country. The seat structure adopts separate screw seat and separated mosaic welding valve seat, and the upper seal adopts the 2Cr13 separate screw seat. The company also has a chemical heat treatment workshop, which effectively ensures the physical and chemical properties and surface quality of the main parts of the valve, so that the production level of the power station valve has reached a new level. There are about more than 2600 kinds of specifications for gate valves, globe valves, check valves, ball valves, safety valves, stopcocks, pressure reducing valves, regulating valves, hydraulic control valves and all kinds of special valves. Nominal diameter: 3mm ~ 3000mm, nominal pressure: 0.6Mpa ~ 250Mpa, the use temperature of -196 ~ 760 C, can be driven by manual, electric, pneumatic, manual fluid linkage and other driving modes according to user needs. Carbon steel, stainless steel, heat resistant steel and high quality alloy steel can be selected respectively. It also covers all kinds of special specifications and matching valves for imported devices. The valves manufactured are widely used in petrochemical industry, oil transportation, mining and metallurgy, thermal power, nuclear power, military industry, aerospace, scientific research and other fields, and are also exported to foreign countries. In addition to the national standards and industry standards, the company adopts the international standards such as API, ASME, JIS, BS and DIN. It has been strictly examined by international organizations and has obtained the usufruct of the API of the American Petroleum Institute and the ISO9001 accreditation certificate of the international standardization organization. Approved by the National Nuclear Safety Agency and the Ministry of machinery, the design and manufacture license of nuclear power valve has been obtained.