The ball valves HBS-C, SIB-C, HBS-D and SIB-D are designed with a rotating socket (DN 10-20) in the body configuration with 2 screwed-in connection pieces. The spindle is blow-out proof and externally mounted. The socket/nipple connection variant enables rapid installation in corresponding high-pressure piping systems. With the safety locking handle option (type SIB), in addition to one-sided locking in the closed position, two-sided fixation of the positions can also be achieved. Also available with lockable feature.