As for the flow control system, with lower wall block, upper part wall block, lower wall block and upper part wall block extending the installation and others re it is in the drop cylinder and the lower wall block which possess the folding possible wall which is present, in the seat and the drop cylinder which depend on the downward look to be laid out, the installation and others re, at the same time it includes with the seat and the valve component which possesses the engagement possible valve surface to upper part wall block. The fluid control system the Drive body which revolution possibly is engaged includes in upper part wall block and lower wall block. The Drive body when it turns to 1st direction, as for the folding possible wall of the drop cylinder, the seat the valve surface and a folding state where it engages in airtightness state and the seat alienating from the valve surface sufficiently, the fluid channel is formed by the valve surface and between the seats and an extended state where the flow which passes by the opening of the drop cylinder becomes possible moves with.< Choice figure >Drawing 4流れ制御システムは、下方壁部区画、上方壁部区画、下方壁部区画と上方壁部区画との間に延在する折り畳み可能な壁部を有する点滴筒と、下方壁部区画に取り付けられた、下向きに依存する弁座と、点滴筒に配置され、上方壁部区画に取り付けられ、且つ弁座と係合可能な弁表面を有する弁部材とを含む。流体制御システムは、上方壁部区画および下方壁部区画に回転可能に係合された駆動体も含む。駆動体を第1方向に回転すると、点滴筒の折り畳み可能な壁部は、弁座が弁表面と密閉状態で係合する折り畳み状態と、弁座が弁表面から十分に離間して弁表面および弁座の間に流体流路が形成され点滴筒の開口部を通る流れが可能になる拡張状態との間で動く。【選択図】図4
