The FA 150 VBF is a sealing flange for dowelling over core holes and openings up to 150 mm. , The advantage lies in the system-side connection of FA 150 sealing inserts and system covers for gas- and water-pressure-tight building entry of Kabuflex R plus pipes, power cables and electrical installation pipes with a compressive strength of 3 or more., The application area of the front flange extends to buildings made of waterproof concrete, buildings with surface sealing in accordance with DIN 18533 (black tank) and for screwing onto housings.