Chongqing Yinhe Petrochemical Machinery Manufacturing Co., Ltd. is an enterprise specializing in the research and development, manufacturing, sales and service of oil and gas drilling equipment and accessories. The company has a registered capital of 30 million and has successively passed three quality management system certifications: ISO9001, ISO14001, ISO18001, ISO45001 and OHSAS18001, as well as HSE health, safety and environmental system certification. It has passed the API Spec 7-1 specification certification and the PetroChina Well Control Production Enterprise Qualification Certification, and obtained the certificate.
The company has strong technical force, a professional product design and R&D team, and senior professionals in the design and development of oil drilling tool products and oil well control products. It is a domestic R&D and professional manufacturer with petroleum plug valve products as its only main industry.
The company’s technology continues to innovate and now has advanced and mature wear-resistant, torsion-reducing, corrosion-resistant, temperature-resistant and surface hardening and corrosion-resistant treatment technologies. And has been committed to the research of products with low friction, high wear resistance, high corrosion resistance, high hardness, high strength, high scratch resistance, high temperature resistance, and high erosion and impact resistance. It has obtained more than 20 national patents, including 7 patents related to plug valves, including one invention patent. Leading products with independent intellectual property rights include: low torque and high life top drive drilling rig upper and lower plug valves and manual integrated plug valves, low torque and high life kelly upper and lower plug valves, high pressure, low twist and wear-resistant plug valves for pipelines, oil pipe plug valves, Full-bore plug valve and other series products; super floating flush pipe assembly, etc.

Company production capacity
The company is headquartered in Yongchuan, Chongqing, and has two plug valve processing and assembly production lines in Chongqing Yongchuan and Sichuan Deyang. The company has high-precision CNC turning and milling processing equipment, machining centers, ball mills, multi-functional high-precision grinding and other processing equipment for valve cores and valve seats; it has a complete composite coating production line for valve balls and valve seats. It has complete measuring instruments and testing equipment and methods such as flaw detection, water pressure and air seal testing. The company can produce single and double ball top driven plug valves with various pressure specifications in types 40, 70, 90 and extra deep wells.
We can customize the production of low-torque switching plug valves for top drives and kelly pipes, high wear-resistant plug valves, low-torque and high-life plug valves with the special functions required by users.
The company is fully capable of producing 140MPa ultra-high pressure and ultra-deep well drilling plug valves. Its DQ70 top drive uses 197*65/8REG*140MPa, 15,000-meter drilling rig 280*8 5/8REG*140MPa, and 12,000-meter drilling rig 250*85/8REG (105/140 MPa), kelly 178*51/2FH*140MPa, and other plug valves have been certified by third-party testing agencies and delivered to users.
The double-step buckle 105MPa, 140MPa hydraulic and manual plug valves contracted and developed for the 12,000-meter deep well drilling project have been successfully used in the deep underground Taco 1 well. The double-step buckle 140MPa hydraulic and manual plug valves for the 15,000-meter deep well drilling project have been delivered to the user.