| 摘要 |
A liquid flow control valve which selectively directs liquid flow to one or more outlets in a cylindrical valve body by the positioning within said body of a rotatable cylindrically-shaped drum with one or more peripheral sealing plates rotatable to cover some of said ports while leaving other such ports uncovered. Movement of the drum and the associated sealing member or members is imparted by fluid flow activated vanes or impellers.
|
