PURPOSE: To provide a small-sized gate valve having temperature regulating function which is simplified in structure.
CONSTITUTION: An operation rod 31 extending through an airtight chamber 1 is supported in such a manner as to be capable of oscillating, and axially advancing and retreating, and the extended part is airtightly sealed by a bellows 35. A gate valve element 33 capable of blocking the airtight chamber opening part is fixed to the upper end of the operation rod. The gate valve element internally has a cooling passage 41, the operation rod has an inlet passage 39 and a discharge passage 40, and the inlet passage is allowed to communicate with the start end of the cooling passage. The discharge passage is allowed to the terminal end of the cooling passage, the inlet passage and the discharge passage are connected to a heat source, the opening part is opened and closed by the oscillation and advance and retreat of the operation rod to circulate a heat medium in the inlet passage, the cooling passage, and the discharge passage, whereby the temperature of the gate valve element is regulated.
KANO RIICHI
MATSUDA SATOYUKI
IGUCHI HIROKI
IKEDA FUMIHIDE
