Vorrichtung zum selbsttätigen Verschließen einer in einer Rohrleitung angeordneten Absperrarmatur

摘要

A device for automatically closing a stop fitting arranged in a pipeline has a stop element held in the open position by at least one element that impedes the closing force. The closing force-impeding element is a closed hollow body (8) provided with a rated break point (15). In order to ensure that the stop fitting is automatically closed in a simple and reliable manner in the event of an avalanche or earthquake, at least part (11) of the hollow body (8) is rigid and has an area (12) clamped in a frame (14) and a non-clamped area (16). In its non-clamped area (16), the hollow body (8) is provided with an inertial mass (17) capable of oscillating in relation to the frame (14).