szelep
A szelep is a mechanical device used to regulate, direct or stop the flow of liquids, gases or slurries within a system. It operates by moving a closing element, such as a disk, ball, cone or wedge, into or away from a seat to control the path and rate of flow. Valves can be operated manually or by automated actuators using electric, pneumatic or hydraulic power. They are fundamental components in a wide range of industries and installations, from simple domestic piping to complex process plants.
Common valve types include ball valves, globe valves, gate valves, butterfly valves, check valves, needle valves
In automotive and internal combustion engines, the term szelep also refers to engine valves—intake and exhaust
Construction and installation considerations include material choice, seating surfaces, body and bonnet design, connection type (threaded,