The Flowserve Gestra NRS1-52 is a high-integrity capacitive level switch designed for critical steam system applications. It functions as a high-level alarm for steam boilers, pressurized hot water installations, and feedwater or condensate tanks. Operating on the principle of capacitance measurement, the NRS1-52 provides reliable water level detection to prevent overfilling and ensure safe plant operation. This compact unit is engineered for durability and precision, meeting stringent safety standards for industrial steam and fluid control systems.