| 摘要 |
The invention relates to a valve comprising a valve housing having a valve inlet and outlet, a valve seat arranged in the direction or flow of the fluid between the valve inlet and outlet, a closure means which is movably arranged in the valve housing and has a first side and a second side, wherein the closure means closes off the valve seat tightly when the valve is in the closed state, a balancing opening for producing a pressure compensation between the first side and the second side of the closure means, and at least one control actuator, wherein the control actuator closes off the balancing opening of the closure means in a closed position and frees the balancing opening of the closure means in an open position so that the closure means frees the valve seat as a result of a pressure compensation via the balancing opening
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