In addition to the conventional cable entry, a wide variety of pipes, whether drinking water pipes, gas pipes, district heating pipes or wastewater pipes, can also be introduced into any building. Here too a wide range of requirements apply to the relevant building entries. For this reason, Hauff-Technik has been involved in the development and manufacture of pipe entries since back in 1988. Press seals ensure that core drills or wall sleeves are sealed professionally in order to be absolutely gastight and watertight. Our portfolio of wall sleeve products will provide you with the ideal solution for any type of wall and any load case. Combined with our press seals, these products create the optimum sealing solution between building and supply line.