| 摘要 |
<p>The fire protection valve with a cold smoke stop (15) involves an installation frame in which a central threaded bolt (5) is arranged, which on its front side bears a hat-shaped material (2). The hat-shaped material in the rest state has an air through passage through the fire protection valve and in the event of fire the valve cone (3) automatically foams due to a high temperature and the enlarged material closes in a sealed manner on the insides of the installation frame, closing the fire protection valve. In the installation frame of the fire protection valve additionally a cold smoke stop is arranged. The cold smoke stop has a heat-conducting holding frame (1), which is in heat-conducting contact with the foamable foam of the fire protection valve.</p> |
