KBS PIPESEAL M™ is here installed on 500 mm diameter pipe. The installation is finished by releasing the spring-loaded mechanical device by pulling the safety bolts. This added mechanical strangling device is placed in the front of the stangler and complemented with an action of an intumenscent lining.

This double-action results in the most exclusive fire stop collar producst for plastic pipes in the market and suits only for the highest safety demands for big plastic pipe penetrations.