The ball valves are self-cleaning and full throughput. The ball rotates during operation to prevent dirt from getting on the ball. The full and smooth bore ensures full flow with low pressure loss and eliminates the risk of deposits on the bottom. They come standard with an NBR rubber-coated ball. On request: Viton ball. Mediums: wastewater, viscous liquids, Max 70°C. Ball: Aluminum NBR rubber lined (option: Viton, Teflon) Construction: according to EN12050-4, Standard BSP thread PN10