SWITCHING VALVE

To provide a switching valve that can switch a flow of gas including powder to two flow channels, and adjust a flow rate in each flow channel smoothly.SOLUTION: A switching valve includes a first body 16, a second body 25, and a drive mechanism for sliding the first and second bodies. The first body 16 includes a first inlet part connected to a supply passage 6, a first outlet part opened on a slide contact surface with the second body 25, a first flow channel 18 for communicating the first inlet part with the first outlet part. The second body 25 includes a second inlet part and a third inlet part opened adjacently to a slide contact surface with the first body 16, a second outlet part and a third outlet part corresponding to them, and a second flow channel 27 and a third flow channel 30 for communicating them with each other. The second inlet part and the third inlet part are composed of slots intersecting with an adjacent direction in the longitudinal direction, and intersecting with a relative movement direction with the first outlet part. The drive mechanism relatively slides the first body 16 and the second body 25 so as to change an opening ratio of the second inlet part to the first outlet part, and an opening ratio of the third inlet part to the first outlet part.SELECTED DRAWING: Figure 3 【課題】粉体を含むガスの流れを２つの流路に切り換え、且つ各流路における流量を滑らかに調整できる切換バルブを提供する。【解決手段】第１本体１６及び第２本体２５と、これらを摺動させる駆動機構を備える。第１本体１６は供給路６に接続する第１入口部、第２本体２５との摺接面に開口する第１出口部、及びこれらを連通する第１流路１８を備える。第２本体２５は、第１本体１６との摺接面に隣接して開口する第２入口部及び第３入口部、これらに対応する第２出口部及び第３出口部、並びにこれらをそれぞれ連通させる第２流路２７及び第３流路３０を備える。第２入口部及び第３入口部は長手方向が隣接方向、及び第１出口部との相対移動方向と交差する長穴から構成される。駆動機構は、第１本体１６と第２本体２５とを相対的に摺動させることにより、第２入口部の第１出口部に対する開口比率と、第３入口部の第１出口部に対する開口比率を変化させる。【選択図】図３