Kaifeng Siyuan Machinery CO., LTD was founded in Sep.,2001. The company is mainly specialized in high and middle pressure valve’s technical development, manufacture and export business. The company has R&D, manufacturing ability and complete quality assurance system, and provides effective pre-sale, sales and after-sale service. The company has a large number of senior professional talents and outstanding personnel in scientific ,manufacturing and quality-controlling areas with a consulting team consisted of experienced experts and professors. The company has kept long-term cooperative relation with Henan? University,Yellow River Conservancy Techical Institute and Kaifeng University. We have signed College-Company Cooperation Agreement with Yellow River Conservancy Techical Institute and become senior talents training center for this college
         The company has four professional manufacturing factories.Hangzhou Jiujiu machinery CO.,LTD is specialized in manufactnurig valves and valve components. Nantong Longyuan Power Station Valve CO., LTD produces high temprature and pressure valves.Dafeng Chaowei Machinery CO., LTD is mainly manufacturing all kinds of middle pressure valves. Jiefu Hongtai Machinery CO., LTD is specialized in the production of valves casting. There are 380 employees in the company including 36 technical personnel, 16 quality controllers and 16 quality inspection checkers.There are more than 150 heat and cold treatment equipment.
        The main products of this company are high temprature and presure sparallel glide gate and all kinds of API6A、API6D、ANSI and BS、DIN standard valves. Valve nominal size:1/4〝～36〝, pressure range PN16P～PN320,150Lb～4500Lb,working temperature -196℃～620℃.Material includes carbon steel ,cryogenic steel,heat resistant steel and stainless steel.Way of actuation:manual,gear,electric etc.. The annual amount of export is more than 15 million dollars.
        Manufacture more Valve,PS valve,PSV,Parallel Slide Gate Valve,Machinery,Machining,Casting,Cast steel valve,Forged steel valve,High presser valve,High temperature valve,Kf valve,API valve,Pipeline valve,Siyuan,Gate valve,Globe valve,Check valve,Satellite,Ball valve etc
        The corporation lays emphasis on technologial improvement and new product development.Every year we manufacture large quantities of new products.We can also manufacture all kinds of valves according to client’s requirements and drawings.
        With the enterprise spirit of honest operation and effective services, we provide our best services for our clients to satisfy their requirements.