Wenderoth, Lind & Ponack, L.L.P.
Trunnion ball valve for high pressure, and hydrogen station
A trunnion ball valve includes a ball provided inside a body main unit in a freely rotatable manner; and a seal mechanism provided on positions on both sides of the ball so as to be in seal contact with the ball, the seal mechanism including: a seat retainer having a sealing surface that is to be in seal contact with a ball surface of the ball; a spring member provided for applying elastic force on a sealing surface side; and a sealing member provided on an outer surface of the seat retainer.
KITZ CORPORATION
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Tetsuya Osamu
Watanabe Watanabe