| 摘要 |
A tap assembly comprising a first hollow member (2) for carrying a fluid having at least one aperture (14) in a wall thereof for fluid flow thereacross and a second hollow member (4) having at least one aperture (20) in a wall thereof for fluid flow thereacross, the second member being slidably mounted about the first member, and wherein one of the members is provided with a spaced apart pair of annular seals (26b, 26c) to seal between the first and second members, each of the pair of spaced apart annular seals being located on the member to the same side of the at least one aperture in the member, the assembly being adjustable by relative sliding movement of the first and second members in an axial direction between an open position where the at least one apertures of the respective members are in fluid communication with each other thereby to allow flow of fluid between the members and a closed position where the at least one aperture of one member is closed by the wall of the other member and sealed on either side by the pair of annular seals in the other member.
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