| 摘要 |
A control valve having a valve block with a plurality of passages opening to the surface of the valve block and a coacting shoe rockable relative to the surface of the valve block, a flexible band valve member disposed between the shoe and the valve block and connected at one of its ends to the shoe and the other end to the valve block, a force exerting structure connected to the shoe for urging the shoe towards the valve block with a part of the flexible band captured therebetween and for tensioning the flexible band, and means for setting the position of the shoe relative to the valve block to control the extent to which the flexible band valve member uncovers openings in the valve block surface.
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