klepstilstand

Klepstilstand is a term used in fluid control and hydraulics to describe the current state or position of a valve in a system. It indicates how much the valve is open, closed, or somewhere in between. In simple terms, a valve can be fully closed, fully open, or partially open (throttling) to regulate flow and pressure.

In automated systems, the klepstilstand is typically commanded by an actuator (electric, pneumatic, or hydraulic) and is reported back to a control system by a position sensor or feedback device. The position is often expressed as a percentage of full open or as a specific angular or linear displacement. The valve’s flow characteristics, such as Cv or flow coefficient, depend on this position and determine the resulting flow rate for a given pressure difference.

Klepstilstand is central to process control. Valve position is adjusted within control loops (for example, PID controllers) to maintain target flow, pressure, temperature, or level. Safety considerations are also linked to valve position, with designs that include fail-safe behaviors (for instance, fail-closed or fail-open) to ensure safe shutdown or containment in power, chemical, and water systems.

Common information associated with klepstilstand includes the type of valve, the actuator and positioner, the method of position feedback, and the expected range of motion. It is also related to maintenance and diagnostics, since valve position accuracy affects performance and reliability.

See also: valve, actuator, control valve, process control, positioner.