To provide pipe connection means capable of surely supporting a valve body against fluid pressure of a fluid flowing into the pipe connection means without requiring large force for operation of the valve body.
Curved grooves 20, 21, 20', 21' for guiding a valve body part 10 are respectively formed on inner peripheral surfaces of two opposed faces of a housing and valve seats 17, 18a, 18b shaped along the groove part 20, 21 are formed on the base pipe 3 side and the branch port 5 side. A switching valve includes a valve part 10a having a size capable of closing respective valve seats of the base pipe side and the branch port side and a driving part for applying driving force to the valve body part 10. The valve body part 10 includes a guide part to be guided by the groove parts 20, 21 formed on the inner peripheral surfaces of two opposed faces and is configured to move the valve part 10a by driving operation of the driving part and open/close the valve seats on the base pipe side and the branch port side.
NAKAZATO KENSUKE
Hideo Shimizu
Yuichi Takagi
Ryoichi Mizobuchi
Masayuki Ogura
Hideki Akiba
Taeko Katata
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