Hatenaka Special Valve Factory This is the traditional land of the Uesugi family, and we use Lord Youzan Uesugi`s words: “If we try, we achieve. If we have not achieved something, it is because we have not tried,” as our foundation. With the spirit of challenge we manufacture devices with the daily advancement of human, material and technological progress as our goal.
Each special valve is naturally made-to-order. The craftsman at Hatanaka Special Valve Industry are squarely challenging such development from scratch.
The essence of valves is not to leak. And the most important thing to manufacture valves with no leak depends on the sphericity of the disk which banks up the liquid, called valve disks.