Aisan Kogyo Kabushiki Kaisha

Tatsuyuki Sugiura

Kiyoshi Yoshizumi

In a gas valve including a valve body having an annular seal surface, of which an axis is disposed to extend in a vertical direction, and of which seal surface a diameter becomes larger toward a lower end of the seal surface, to prevent water drops on the seal surface made by condensation from freezing and to prevent the seal surface from being fixed to a seat because of the freezing, a liquid repellent film is provided on the seal surface of the valve body.

Growing community of inventors

Obu, Japan

Tatsuyuki Sugiura