Henan Yunyu Machinery Equipment Co., Ltd is a specialist manufacturer of special valves include Chlorine valves, Ammonia valves, safety valves, etc and also a high-tech enterprise with research, development and manufacture of special valves. Our company is one of the industry's biggest valves manufacturer in China. The company's tenet is surviving by quality, developing by technology, leading by focus on products. Company through scientific and technical innovation, new materials' research and application results in its leading position in this industry for years on ammonia valves, safety valves and chlorine valves. We also earned the trust of clients by providing excellent quality products and good service.

With the assets of RMB 50 million, construction area of 25, 800m2, the company is owned with the domestic advanced automated valve testing center, the total performance safety valve test center, CNC machining center and CAD, CAAP workstations. Besides that, the company is also equipped with CNC machine tools, general machine tools, precision casting, acid-washing ball blasting and other large equipment more than 300 sets. There are other 25 sets of facilities, including metal physicals and chemistry test, mechanical performance test, plasma arc overlaying, ultrasonic thickness test, nondestructive detection, heat treatment, spectral analysis, etc. Company has annul production capacity of 150, 000 sets. Our products are widely used in hydro-power station, chemicals, fertilizers, food, gas, oil refining, cold chain logistics, coal mines, cold drinks, beer, pharmaceuticals, seafood, slaughtering and storage refrigeration industries, etc.

Valves made by our company strictly enforce the national standards and we make our own enterprise standards, which is even better than national standards. Our main products are: Chlor-alkali valve (zero leakage bellows global valve, special chlorine valve, chlorine special check valve), liquid ammonia valve (maintenance free bellows global valve, ammonia global valve, forging welding valve), etc. Our production standards are: GB, BS, ANSI, API, JIS, DIN, etc. We can also make customized non-standard products according to clients' requirements.