SIO offers two-piece flanged ball valves that are specially built for zero-leakage sealing when control conditions require valve actuation exceeding 50,000 cycles. Our flanged ball valves have flanges with bolt holes that are used to lock them to matching flanges on the pipe. Gaskets are placed where the flanges connect to provide reliable sealing and prevent potential leaks. Flanges are an excellent means of connecting pipes, pumps, valves, and other components to produce a piping system. Having flanged connections make installation, removal, and cleaning easy.