The bst Link Seal System uses arc-shaped rubber elements, which are bolted together to form a chain which seals the annular space between carrier pipe and core hole (sleeved pipe/casing flange) by applying pressure by the tightening of the bolts!
	The bst Link Seal System is a very flexible and adaptable modular system for the gas-, water- and pressure-tight sealing of round pipes of any kind or also of single cable penetrations. The assembly is easy and can also be done subsequently. With the large range of 17 different types of Link Seal elements pipes in diameters between 12,7mm and over 1000 mm can be sealed.
	bst Rubber Pressure Sealings are used in cases where the installation of a bst Link Seal sealing is technically not possible (position of pipe is not central, several pipes within one core hole, etc.). Circular blanks made from EPDM rubber with cylindrical recesses (sized as required), with fittings made from galvanized steel or high-grade steel V4A and bolts, in a divided version for the subsequent installation. Every sealing problem – even the most difficult – can be solved  promptly and economically with this system.