| 摘要 |
The present invention provides a fluid device unit which is easy to mount/dismount on/from an installation surface. The fluid device unit includes: a main body part (4) extending in a direction of a central axis; a base part (4) which is fixed to the installation surface; and a coupling part (3) which is provided at one end side of the main body part and detachably couples the main body part to the base part (4). Either the base part (4) or the coupling part (3) includes a first coupling member (3a) which is substantially circular in cross-section in a radial direction perpendicular to the central axis and has a diameter of a first length (D1). The other of the base part (4) and the coupling part (3) includes a first holding member (4c) which, with its inner circumferential surface having a substantially circular shape in cross-section in the radial direction, holds the first coupling member (3a) so as to surround its outer circumferential surface. The inner circumferential surface of the first holding member (4c) is partially opened in the radial direction, and an opening width of an opening portion (4g) of the first holding member (4c), which is elastically deformable, is narrower than the first length (D1). |
