Jointing, repairing and hot-tapping systems for land and marine pipelines. Member of Hawle Austria Group. NOVA SIRIA has over ... 80 years of experience in manufacturing jointing, repairing and hot-tapping systems for land and marine pipelines. Our product range, from design to manufacture in accordance with specifications of the Quality Management System ISO 9001-2008, follows the processing cycle supported by advanced technologies which allow us to achieve our steadily high quality level. NOVA SIRIA’s production is organized in different product types available in multiple versions, characterized by wide tolerance range of 24 - 30 - 50 mm on the pipe diametre which allow the connection, repairing and tapping of pipes with the same of different outside diametres and materials. Our dimensional range covers from DN 50mm (2”) to DN 4000mm (160”) and larger sizes upon request, it is suitable for any pipe outside diameter and covers applications with maximum pressures of 100 bar, according to the type of product and pipe outside diameters. read more