| 摘要 |
The invention relates to a circuit for driving (controlling) a controlled valve which controls the flow of a fluid between an upstream pipe (3) and a downstream pipe (4) and comprises means (16, 17) for regulating the speed of opening and of closure of the shutter element, characterised in that the compound pipe (14) splits locally into two pipes (18, 19) mounted in parallel and termed parallel pipes and one (18) of them bears the means (16) for adjusting the speed of opening and the other (19) bears the means (17) for adjusting the speed of closure. <IMAGE> |
