Three phase suction units with 7,5KW of power, suitable for transferring dusty and granulated products in flow rates till 1500 kg/h. The relief valve is standard assembled on these units. Upon requested, these models are available also in stainless steel Aisi 304. B: base version with uncovered motor (visual motor) BF: base model with uncovered motor and safety filter BIF: base model with uncovered motor, safety filter and electrical switchboard C: model with protected motor CF: version with protected motor and safety filter CIF: version with protected motor, safety filter and electric switchboard CK: version with protected motor and safety filter chamber CIK: version with protected motor, safety filter chamber and electrical switchboard C..K : model with motor in version with HIGH FLOW