| 摘要 |
The present invention discloses a valve assembly for controlling a differential pressure, including a housing, an actuating device, a first, a second, and a third port, a first sealing seat, a second sealing seat, and a valve member whose interaction with the first sealing seat controls a first connection between the first and the second port, and whose interaction with the second sealing seat controls a second connection between the second and the third port. In order to ensure an optimal analog controllability, according to the present invention, the sealing seats are axially opposite each other and have equal effective diameters, and the valve member is arranged between the sealing seats.
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