Chengdu Zhonghuan Flow Controls Mfg. Co., Ltd. is a manufacturer of Gas over Oil Actuator, Wellhead Safety Control System, and Pipeline Gas Driving Shut-down System. For all our products series, we are capable of doing R&D and design by ourselves. We are known as Chengdu Zhonghuan Electromechanical Equipments Co., Ltd., as we were the exclusive agent for many world-leading brands in Southwest China. We have 7 departments: R&D Department, Design Department, Sales Department, Engineering Service Department, Production Department, Quality & Security Department, and Financial Department.

We develop and manufacture scotch-yoke gas over oil actuators, rotary-vane gas over oil actuators, and electro-hydraulic actuators based on like products from Europe and America. Besides all the functions of products from abroad, we make substantial innovations such as: Revolutionary breakthroughs of electronic line break protection system, I. E. LBP-1000, modularization of control components, neck-strengthening and embedding design of pressure vessels, low-temperature display technology and wireless data download technology. Our producuts provide solutions to many problems in applications to win respect in oil and gas industry and trust of our customers. We break the monopoly of freign manufacturers over gas over oil actuators to usher in a brand-new situation in oil and gas industry.

We design and manufacture API 6A wellhead safety control systems widely used in Sichuan, Chongqing, Xinjiang, Jilin and Daqing. We also export control systems to US, Mexico and Turkmenistan. By now, more than 300 sets of wellhead safety control systems have been used on the gas and oil fields all over the world. We design an oil-testing manifold system to control 6 safety valves and 2 chokes. Our hydraulic, pneumatic, pneumatic-hydraulic, and electro-hydraulic wellhead safety control systems are well known and widely accepted by customers. Products of the whole series have world-class performances in terms of control process, technological design, reliability and safety factor.

Our pipeline gas driving shut-down system directly takes purified natural gas out of the pipeline as its motive source to provide pipeline with high-pressure and low-pressure protection. This system is applicable to natural gas pipeline of no bigger than DN 300.

We offer professional complete integration and assembly service of valves with actuators and control systems in oil and gas industry as well as chemical industry. We also provide field valve maintenance service and technological solutions. Zhonghuan is the exclusive service agent of many famous brands such as Cameron, Shafer, Biffi, Limitorque, and Safoco. There is a large quantity of stock of valves, actuators, valve packing grease and other valve maintenance devices against customes' urgent needs. Please log on our website to check the detailed information.