D series for concrete

Firestops e.g. for pipe or electricity repair projectsD series for concrete structures

D series service penetrations can be used with individual pipes and cables and cable bundles. They are installed in a precisely dimensioned diamond-drilled hole. This removes the need for second-stage pouring or other firestop work. The fire classes that are achievable with the products depend on the fed-through building services and the surrounding structure, but the most common fire class for structures made from rock materials is around EI 120. The specific fire classes must be checked from the With the help of this product the service penetration has very little effect on the structure's soundproofing qualities (effect in stone material structures max - 2 dB).

The products consist of aluminium cuffs filled with a substance that expands when exposed to heat and a Sewatek feed-through pipe the size of which is determined by the outer diameter of the line pipe. Once the installation is complete, no second-stage work is required except for sealing the root of the line pipe/cable with acrylic caulk. This means the entire service penetration can be installed from start to finish by a HPAC technician, for example. We generally deliver these service enetrations according to the customer's specifications, but if needed, the feed-through pipe between the cuffs can also be shortened on-site.

Technical information

D42

The D42 is our smallest renovation service penetration and it fits into a 42 mm hole. The maximum outer diameter of the pipe that is fed through is approximately 25 mm (28 mm is the absolute maximum, but this is not recommended). The delivery includes the product and installation flanges that keep the service penetration in place and ensure a finished look. As with our other products, the only required work stage after installation is the sealing of the penetration with acrylic caulk.

D62

The renovation penetration known by the name D62 is the big brother of the D42. It offers feed-through capacity for pipes and cable bundles up to 43 mm in diameter. The delivery includes the product and installation flanges that keep the service penetration in place and ensure a finished look. As with our other products, the only required work stage after installation is the sealing of the penetration with acrylic caulk.

D92

The D92 renovation penetration is the largest of the three brothers. It is installed into a 92 mm hole and it can be used to feed through pipes that are up to 64 mm in outer diameter. The delivery includes the product and installation
flanges that keep the service penetration in place and ensure a finished look. As with our other products, the only required work stage after installation is the sealing of the penetration with acrylic caulk.

D105 and D140

The largest service penetrations in the D series differ from the others in that they are assembled on-site, but this assembly is made very easy and simple. The D105 requires a 105 mm hole and it enables the feed through of drainpipes and other pipes up to the diameter of 75 mm. The D140 requires a 140 mm hole and can be used to feed through drainpipes up to 110 mm.

D105 / D140 viemäriläpivienti
D105 / D140