Variable Speed Pumps for Closed Loop Operation offer maximum displacement in a range of 54.8 Cm³//rev to 280 Cm³/rev. These Variable Speed Pumps are suitable for closed loop operation. These Variable Speed Pumps are available in a range varying from 121 Kw to 373 Kw. Variable Speed Pumps for Closed Loop Operation come in a weight ranging from 42 kgs to 158 kgs.