| 摘要 |
A gate valve comprising a first part ( 10 ), a second part ( 12 ), and inlet/outlet parts ( 14 ), wherein the first and second parts define a cavity in the body and where a wedge ( 18 ) is movable in said body. The gate valve comprises guiding objects ( 22; 22' ) on generally opposite sides of the wedge for guiding said wedge movement, where a major part of each guiding object is accommodated in the first part, and a portion of the guiding object extends into a region of the cavity defined by the second part, thus essentially overlapping an area of said part. The guiding objects may be releasably mounted or be integral with the valve housing upper part. A sealing insert ( 20 ) for the gate valve comprises a region which under normal conditions is exposed to the water flowing through the valve, and a rigid skeleton ( 30 ) element covered by a resilient material to such an extent that said region of the sealing insert which under normal conditions is exposed to the water flowing through the valve, is substantially covered by said resilient material.
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