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Valves specialist manufacturer trusted
with the highest quality

Since its establishment in 1987, Daejung Valve Co., Ltd. has grown into a trusted valve manufacturer with advanced technology and the best quality. Under substantial management, our products are always doing our best to provide better products to our customers by obtaining domestic and international standards KS, KC, KFI, API, CE, ISO, etc.
As a result, high performance butterfly valves and aluminum butterfly valves have well known the best quality in Korea, and they have entered the global market and are exporting under proprietary brand "MAX-SEAL". In addition, we will gradually become a global company with the development and supply of Hydrogen Valves and Cryogenic Valves.


This 3MAX slogan is our belief that quality and customer satisfaction are always our priority.
A company that is recognized in the world through continuous investment and active market development!
We will always do our best to become a Daejung Valve that grow with customers.

Tyler Jang
President & CEO