Travaini Multi-stage self priming centrifugal pump series TBH with horizontal mounting, top suction and discharge flanges are capable of handling mixtures of gas and clean non abrasive liquids, corrosives, hot or cold in the chemical, petro-chemical, pharmaceutical & food industries. Other applications include removal of condensates and distilled liquids, solvents and liquefied gases, boiler feed applications, fire systems and autoclaves. The self priming pumps utilize the lateral channel principal with open "star° type impeller that is hydraulically balanced, enclosed between the port plates.