Valves and shut-off devices are components for blocking and control of liquids or gases. The range of products includes 2-way ball valves, 3-way ball valves, hydraulic ball valves, angle seat valves, butterfly valves as well as solenoid valves, pressure switches, blocking valves, needle valves and gate valves. Coaxial valves and check valves also belong in the assortments as well as dirt strainers, safety valves and pressure limiting valves.