Flow path switching valve and flow path switching system

摘要

Problem to be solved: to provide a flow path switching valve and a flow path switching system capable of providing three flow path connection patterns according to the fluid pressure.In the flow path switching valve 5, the base piston 50 is movable between the first base position and the second base position located on the other end 10B side than the first base position.The driving piston 60 is movable between the first stop position in contact with the base piston 50 in the first base position, the second stop position in contact with the base piston 50 in the second base position, and the third stop position located on the other end 10B side than the second stop position.The base piston 50 and the driving piston 60 are moved in accordance with the refrigerant pressure of the first piston chamber 21, the second piston chamber 22 and the third piston chamber 23.Diagram