Shanghai Hongon machinery technology Co, Ltd is a leading manufacturer and explorer in the field of designing CNC machine and manufacturing tripleoffset butterfly valve.

Based on the advanced CNC machine and decades of years experience in valve manufacturing, Hongon has possessed many advanced invention patents all over the world.

Hongon is an APl(American Petrolum Institue) certificated manufacturer and strictly enforces the APl quality control system. All the butterfly valves are strictly quality controlled and tested before delivering to our customers.

Hongon's triple offset butterfly valves has been widely applied in the oil and gas industry, chemistry industry, electric power industry, etc., and all to be proved with excellent sealing performance, corrosion resistance and reliable lifecycle.