| 摘要 |
A container valve for fixed fire extinguishing systems comprises a valve body (12), a closure piston (26), one sealed end of which is introduced into the release chamber (24) and the opposite end of which has a sealing surface which can be pressed against a valve seat (22). Said closure piston (26) has a pressure compensation channel (36). A closing spring (32) exerts a spring force on the closure piston (26) in the direction of the valve seat (22). A trigger device (46) enables a drop in pressure to be created in the release chamber (24), in such a way that the closure piston (26) is displaced away from its valve seat (22), coming to rest against an end stop. A sealing element (38) seals the pressure compensation channel when the closure piston (26) rests against the end stop. Said sealing element (38) can be displaced from the exterior between a sealing position and a filling position, whereby in the sealing position, it seals the pressure compensation channel (36) of the closure piston (26) when the latter is in its end position, and in the filling position, it exposes the pressure compensation channel (36) of the closure piston (26) when the latter is in its end position.
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