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About us

EMV was established in Hong Kong since 1991 for the designing and manufacturing of industrial butterfly valves.


The manufacturing facility was located in Shanghai with more than 100 sets of mechanical equipment such as horizontal processing center, vertical processing center, large vertical lathe, large gantry milling machine, CNC lathe, grinder, CNC drilling machine, rubber vulcanization, plasma nitriding and spraying. We also have material analysis, spectral analysis, hardness testing, mechanical properties testing, ultrasonic testing and other raw material testing instruments. Valve testing equipment is equipped with more than 10 sets of testing equipment, such as medium and large-scale valve test bench. At the same time, it is equipped with valve ultra-high temperature, ultra-low temperature and API607 fire-resistant testing equipment, and a rubber testing center is set up. Our product line including high-performance butterfly valves, three eccentric butterfly valves, check valves, mid-line rubber butterfly valves.

All of the products can be designed, manufactured and processed according to GB, ANSI, API, JIS, DIN, BS and other standards. Users can choose manual, pneumatic, electric, hydraulic, electro-hydraulic, pneumatic and other driving modes according to actual operating conditions.

The products are widely used in the process control systems of steam, liquid and gas in petroleum, chemical, power plant, metallurgy, environmental protection, light industry, urban construction, water treatment systems at home and abroad. The index of butterfly valve produced by the company has reached the international advanced level.

Our History

Business Startup
Formed EMV sales office in 1991,
Hong Kong
Manufacturing Plant
Self invested manufacturing plant located in Shanghai, PRC in 1995
Business Expansion
Became the designated supplier of Major US valve Brands in 1997
Lab & Testing Facilities
Setup complete lab and testing facility for the material and valve test in 1998
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