Chongqing Yinhe Petrochemical Machinery Manufacturing Co., Ltd.

Chongqing Yinhe Petrochemical Machinery Manufacturing Co., Ltd. (重庆银河石化机械制造有限公司) is a Chinese manufacturer specializing in the research, development, manufacturing, sales, and service of oil and gas drilling equipment and accessories, headquartered in Yongchuan District, Chongqing. Founded with a registered capital of 30 million RMB, the company holds API Spec 7-1 certification for rotary drill stem elements and the PetroChina Well Control Production Enterprise Qualification Certification. It has also achieved ISO 9001, ISO 14001, ISO 45001, and OHSAS 18001 management system certifications, as well as HSE health, safety, and environmental system certification. The company's core focus is petroleum plug valve products, with leading proprietary products including top drive IBOP (Internal Blow-Out Preventer) upper and lower plug valves, manual integrated plug valves, kelly upper and lower plug valves, high-pressure pipeline plug valves, oil pipe plug valves, full-bore plug valves, super floating washpipe assemblies, and mechanical seal washpipe assemblies. Yinhe has obtained more than 20 national patents, including seven related to plug valves, with one classified as an invention patent. The company maintains two plug valve processing and assembly production lines in Chongqing Yongchuan and Sichuan Deyang, equipped with high-precision CNC turning and milling centers, ball mills, multi-functional grinding equipment, composite coating lines for valve balls and valve seats, and complete flaw detection, hydrostatic pressure, and air-seal testing capabilities. Yinhe is capable of manufacturing single and double ball top-drive plug valves in pressure ratings spanning 40 MPa, 70 MPa, 90 MPa, and up to 140 MPa for ultra-high pressure ultra-deep well applications. Its 140 MPa hydraulic and manual plug valves have been deployed in the Taco 1 well, the deepest well in Asia, and 15,000-meter deep well drilling projects. The company's technology portfolio includes advanced wear-resistant, torque-reducing, corrosion-resistant (meeting NACE MR0175 H2S corrosion resistance requirements above EE level), temperature-resistant, and surface hardening treatment technologies. Yinhe markets its products internationally with a focus on the Middle East and global oil-producing regions.