| 摘要 |
A valve comprising a valve box (1) with an inlet (5) and an outlet (6) port and a cylindrical shut-off part (4), rotatable around its longitudinal axis (14), which can be placed into the said box and removed from it longitudinally. The shut-off part (4) has a port (8) running crosswise in regard to its longitudinal axis (14) through a cylinder while the port is open to one cylinder side, and that the shut-off part is mainly shutting-off the valve outlet port.
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