FLUID PASSAGE DEVICE

PROBLEM TO BE SOLVED: To provide an inexpensive fluid passage device which requires no highly accurate machining. SOLUTION: The fluid passage device 100 is equipped with a passage block body 200 in which an outer surface 20, an accommodating hole 35 and fluid passages 41, 42, 45, 46, 49, 50, 56, 57 which communicate to the outer surface 20 and the accommodating hole 35 are formed, and an accommodating body 300 accommodated in an liquid-tight state in the accommodating hole 35 in which grooves 37, 38, 39 connected to the fluid passages are formed in the outer peripheral surface. The outer peripheral surface of the accommodating body 300 is coated with a resin material 400 so that the outside diameter of the accommodating body 300 is made bigger than the inside diameter of the accommodating hole 35, whereby the accommodating body 300 is accommodated in the accommodating hole 35 in a pressurized state. The inside peripheral surface of the accommodating hole 35 is coated with a resin material 410 so that the inside diameter of the accommodating hole 35 is made smaller than the outside diameter of the accommodating body 300, whereby the accommodating body is accommodated in the accommodating hole in the pressurized state. COPYRIGHT: (C)2004,JPO&NCIPI