A device for controlling the flow rate of the liquid through the tube having a flexibility, the tube is received between in use, are two faces facing each other is elongated in the direction of flow of the liquid in the tube, parallel to each other In order to compress the tube in the plane between the two and the surface of the two is arranged included angle does not exceed 40 °, in use, until the desired amount, the distance between the surfaces of the two or are and means for changing. [Selection] Figure Figure 1可撓性を有する管を流れる液体の流量を制御する装置であって、使用時に前記管が間に受け入れられ、前記管内の液体の流れの方向に細長い互いに対向する二つの面であり、互いに平行であり又は使用時に内包角が40°を超えないように配置された前記二つの面と、所望の量まで前記二つの面間で前記管を圧縮するために、前記二つの面間の距離を変える手段と、を備える装置。【選択図】図1
