PROBLEM TO BE SOLVED: To provide a branch port having a connection structure discriminable from other branch ports, minimizing an increase in a manufacturing cost and complication of a device, capable of appropriately retaining cleanness and improving a cleaning effect by preventing an occurrence of air stagnation and fluid residence, and capable of monitoring cap-unmounted mistakes.SOLUTION: When fluid distribution means is connected to a branch flow passage 6, one fluid passage end 22 of a connector 20 is fitted to a first connector fitting part 24 provided in the branch flow passage and the other flow passage end 23 of the connector is fitted to a second connector fitting part 42 provided in the fluid distribution means, so that the branch flow passage and the fluid distribution means are communicated to each other via a flow passage 21 of the connector. When a cap 30 is mounted on a housing 2, a bypass passage 9 branched from a fluid inflow passage 3 or a fluid outflow passage 4 and communicating to the branch flow passage is formed. The housing includes an opening/closing valve 11 therein that, when the cap is removed from the housing, cuts off the leakage of the fluid to the outside of the housing.COPYRIGHT: (C)2015,JPO&INPIT【課題】他の分岐ポートと区別可能な接続構造を有し、製造コストの上昇や機器の複雑化が最小限に抑えられ、エアー溜まりの発生および流体の滞留が防止され、清浄度を適正に維持可能であり、洗浄効果が向上され、キャップの装着忘れ等も監視可能な分岐ポートを提供する。【解決手段】流体流通手段を分岐流路6に接続した際に、コネクタ20の一方の流路端部22が分岐流路内に設けられた第1コネクタ嵌合部24と嵌合し、コネクタの他方の流路端部23が流体流通手段に設けられた第2コネクタ嵌合部42と嵌合することにより、分岐流路と流体流通手段とがコネクタの流路21を介して連通され、キャップ30をハウジング2に装着した際に、流体流入路3または流体流出路4から分岐して分岐流路と連通するバイパス路9が形成され、キャップをハウジングから外した際に、ハウジング外への流体の漏出を遮断する開閉弁11を、ハウジングの内部に設けた。【選択図】図1
