Diagnosis and Vibration Diminishing in Pump Operation

Abstract Pumps being components of wastewater treatment systems, water supply systems and irrigation systems are exploited under a wide range of operating parameters. User requirements make these equipments to work with functioning parameters close to the limit values recommended by the manufacturers, on low energy efficiency regime. In this manner vibrations occur during operation, which could be under specific rotation, different pump characteristics, dynamic or static load. The present paper would like to emphasize by measurements the vibrations arising from pumps operated at low speeds, to establish dependency relations. Diagnosis of the phenomena is mandatory because it generates malfunction, damage and even pump or system failure. Results obtained and their interpretation are the scientific base for improvement method technical recommendations, for process automation and service programs creation in order to ensure reliable operation and to help repair cost decreasing.