Gear Pumps 1P Series Installation and Running Information 10 Product tables show threemax. pressure levels (P1, P2 and P3) to which each pump can be used. P3 = peak max pressure. P2 = intermittent max. pressure. P1 = continuous max. pressure. Pressure Definition Pressure diagramas a function of time. P1, P2 and P3 values can be attained only if systemdoes not go over the following rotation speeds: P3 P2 P1 t (sec) Max. 20 sec. Max. 2 sec. p(bar) Group 1P Size 1.6 2 2.5 3.3 4.2 5 5.8 6.7 7.5 9.2 11.5 Min. Speed (rpm) 4000 3000 2000 1500 1000 Please contact jbj Techniques technical department, email: info@jbj.co.uk or telephone: +44 (0)1737 767493 for system operating conditions other than indicated in the product tables. Intake line 0.5 to 1.6m/s Delivery line 2 to 6m/s Supply &Delivery Lines Hydraulic systempipes should show no sudden changes of direction, sharp bends and sudden differences in cross-section. They should not be too long or out of proportion. Pipe cross-section should be sized so that fluid velocity does not exceed recommended values. It is advisable to carefully consider the possible diameter reduction of the inlet or outlet pipes fitted on flange fittings. Reference values are the following: Return line 1.6 to 3m/s www.jbj.co.uk/gear-pumps.html #DriveLineHarmony
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