Refrigeration Back Pressure Valve for Screw Compressor Units

Zhejiang Dongyi Electromechanical Technology Co.,Ltd was founded in 2011, which is the top class manufacturer of the refrigeration valves in China. The annual capacity of the valves can reach 2 million sets, ranking the forefront in the field of refrigeration and air conditioning system’s valves in China. And we have our own self-managed import and export right.

Dongyi Technology devotes itself in the R&D and manufacture of various valves in refrigeration and air conditioning system for decades. The valves mainly include automatic control series valves such as stop valves, pressure regulating valve, oil temperature control valve for refrigeration system pipe use. And steel series valves such as rotary lock valves, rhombic flange valves, and oil circuit stop valves for refrigeration compressors and pressure vessels use. Our valves can be widely used in semi hermetic refrigeration compressor, screw compressors, refrigeration and air conditioning pipelines.

Dongyi Technology regards the valve as the life of the company. From the purchase of raw material to the assembly, we always carry out strict inspection and selective comparison to achieve the best performance of the valves and ensure all customers’ satisfaction.

Dongyi Technology has strong production capacity and high advanced machines for production. We can customize various refrigeration high-quality valves according to customers’ detailed requirement.

Dongyi Technology located in Xinchang, which is very close to Ningbo and Shanghai port, with the geographical advantages and convenient transportation

We are here devoted to provide best services, good quality, and competitive price for our customers around the world.