Gear Pumps ALP-GHP Series Installation and Running Information 11 www.jbj.co.uk/gear-pumps.html #DriveLineHarmony P1, P2 and P3 pressure values can be reached by more stages of the multiple pump only if the max. torque values applicable to the selected shafts are not exceeded. They can also be reached only if the following rotation speeds are not exceeded: Size 18 24 30 36 48 60 Pressure Definition (continued) 0.25 Speed [rpm] 3000 Size 2 3 4 5 6 7 9 11 13 16 20 GHP1 Speed [rpm] 3500 3000 2000 1500 ALP1 Speed [rpm] 4000 3500 2500 2000 1500 Size 0.50 0.75 1.00 1.30 1.60 2.00 ALP2 Speed [rpm] 3000 2500 2000 1500 GHP2 Speed [rpm] 2500 2000 1500 0.5 Speed [rpm] 1000 2500 2000 Size 30 33 40 50 60 66 80 94 110 120 135 ALP3 Speed [rpm] 2500 2000 1500 1000 Size 30 33 40 50 60 66 80 94 110 120 135 Size 2 3 4 5 6 7 9 11 13 16 20 Size 6 9 10 12 13 16 20 22 25 30 34 37 40 50 GHP3 Speed [rpm] 2000 1500 1000 Size 130 160 190 220 250 270 300 Size 6 9 10 12 13 16 20 22 25 30 34 37 40 50 ALP4 Speed [rpm] 2000 1500 Marzocchi modular multiple pumps only have a single direction of rotation. Direction of rotation of single rotation pumps is conventionally defined as follows: when standing before the pump with driving shaft up with its projecting end towards the observer, the pump is rotating clockwise in case of right-hand rotation "D"; therefore, delivery side is on the right, whereas intake side is on the left. The contrary will happen with left-hand pumps "S", keeping the same point of view. The above applies only to front and back stages. Middle stages have no direction of rotation of their own as it is set by the way they are assembled to the front or back stage. Always refer to the direction of the arrow on the pump body to clearly determine the delivery side of a middle stage, and therefore its direction of rotation. Direction of Rotation S = counter-clockwise rotation INPUT OUTPUT D = clockwise rotation INPUT OUTPUT R = reversible rotation
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