Metallic cabinet painted with epoxy powders to guarantee good resistance to atmospheric agents. Centrifugal electric pumps with stainless steel impeller, safety valve for overpressure, fully insulated hydraulic circuit, circuit breaker for electric pump protection. For SAP 0075 and 0150, there are five pump models with water flow rates up to 18,000 l/h and heads up to 140 kPa. For SAP 0300, 0500, 0501, 0750 and 1000, there are eight pump models with water flow rates up to 60,000 l/h and heads up to 200 kPa. For SAP 1500, 2500 and 3500, there are 10 pump models with water flow rates up to 200,000 l/h and heads up to 300 kPa. Solutions with a reserve circulation pump are also available.