Drifttrycket

Drifttrycket is a Swedish term used in engineering and process control to denote the pressure at which a system, component, or process normally operates during everyday operation. It represents the typical or nominal operating pressure that drives flow, maintains process conditions, and guides the sizing of equipment and control schemes. The concept is distinct from related terms such as design pressure, which is the maximum pressure a piece of equipment is designed to withstand, and test pressure, which is used during commissioning and inspection.

Determination and control of drifttrycket depend on the specific process requirements, fluid properties, temperature, and desired production rate. In most installations, drifttrycket is maintained by feedback-controlled devices such as pressure regulators, control valves, and sensors connected to a process control system. Because operating pressures can vary with load, viscosity, or temperature, drifttrycket is often specified as a setpoint or as a narrow operating band rather than a single fixed value.

Measurement and monitoring are typically performed with pressure transducers or gauges that feed data to the control system, enabling alarms and automatic adjustments if the drifttrycket deviates beyond acceptable tolerances. Proper management of drifttrycket is important for energy efficiency, equipment wear, process stability, and product quality.

Applications of drifttrycket span various industries, including chemical processing, oil and gas, water treatment, HVAC, and manufacturing. The term is embedded in technical documentation, datasheets, and control standards to describe the normal operating pressure used in design and operation.