Pressure Definition Product tables show threemax. pressure levels (P1, P2 and P3) to which each pump can be used. P1 = continuous max. pressure. P3 = peak max pressure. P2 = intermittent max. pressure. P3 P2 P1 t (sec) Max. 20 sec. Max. 2 sec. p(bar) Gear Pumps ALP-GHP Series Installation and Running Information 10 www.jbj.co.uk/gear-pumps.html #DriveLineHarmony Size 0.50 0.75 1.00 1.30 1.60 2.00 ALP4 Min. speed [rpm] 400 Marzocchi pump flexibility is also highlighted by the wide selection of rotation speeds they can work at. Max. values are indicated in product tables and change according to the model, while min. values are as follows: Size 30 33 40 50 60 66 80 94 110 120 135 GHP1 Min. speed [rpm] 800 600 Size 2 3 4 5 6 7 9 11 13 16 20 Min. Rotation Speed Size 6 9 10 12 13 16 20 22 25 30 34 37 40 50 Size 18 24 30 36 48 60 ALP1 Min. speed [rpm] 800 600 ALP3 Min. speed [rpm] 500 400 0.25 Min. speed [rpm] 1500 1000 0.5 Min. speed [rpm] 1000 800 ALP2 Min. speed [rpm] 800 600 500 GHP2 Min. speed [rpm] 800 600 500 Size 30 33 40 50 60 66 80 94 110 120 135 GHP3 Min. speed [rpm] 500 400 Size 2 3 4 5 6 7 9 11 13 16 20 Size 130 160 190 220 250 270 300 Size 6 9 10 12 13 16 20 22 25 30 34 37 40 50
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