PROBLEM TO BE SOLVED: To provide an emitter stably producible from two or more components, and to provide a tube for infusion irrigation having the same.SOLUTION: An emitter 120 controls the flow rate of an irrigation liquid to be discharged from a discharge opening 112 of a tube 110 so that the flow rate decreases as the pressure increases within a predetermined pressure range, according to the pressure of the irrigation liquid within the tube 110 which is given to a second membrane part 153. The emitter 120 is composed by fitting of a first member 130 having a bottom face in a shape along the inner wall surface of the tube 110, and a second member 150 fitting into the first member 130 comprising the second membrane portion 153.SELECTED DRAWING: Figure 1【課題】二体以上の部品から安定して生産可能なエミッタおよびそれを有する点滴灌漑用チューブを提供する。【解決手段】エミッタ１２０は、第２の膜部１５３が受けるチューブ１１０内の灌漑用液体の圧力に応じて、所定の圧力の範囲において当該圧力が高いほど流量が小さくなるように、チューブ１１０の吐出口１１２から吐出すべき灌漑用液体の流量を調整する。エミッタ１２０は、チューブ１１０の内壁面に沿う形状の底面を有する第１の部材１３０と、第２の膜部１５３を含み第１の部材１３０に嵌合する第２の部材１５０との嵌合によって構成される。【選択図】図１
