PA / PAC series pumps
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PA | PAC series piston pumps fixed displacement in-line design A D VA N TA G E S ► Of unique design, the PA and PAC pumps offer a robust solution with long service life for high pressure requirements in truck hydraulics. ► Relatively insensitive to contamination, these pumps are particularly well suited to the harshest environments. ► The design means the pumps can rotate either clockwise or counter-clockwise without any user intervention. ► Like all truck pumps designed by HYDRO LEDUC, this range is fitted with the latest innovation in terms of sealing:  Front of pump fitted with two shaft seals: externally, a seal capable of resisting the high temperatures of the gearbox, and internally, a seal adapted to the hydraulic requirements. A transparent flexible tube fitted between the two seals, to protect these seals from dirt from the road, and from high pressure water jet during washing of vehic

The PA, PAC pump series comprises two ranges, all designed for truck applications at working pressures up to 5800 psi (400 bar) continuous and 7252 psi (500 bar) peak. single flow from 25 to 114 cc/rev twin-flow from 2x50 to 2x75 cc/rev two different flows: 75-40 cc/rev Series offering the most compact size envelope : single flow from 40 to 80 cc/rev twin-flow from 2x25 to 2x40

Shaft bored through Additional bore on the shaft available on request. Pump reference Displacement (cc/rev) (1) Maximum torque given with a mechanical efficiency at 90%. (2) Maximum torque for the two pressure ports at 400 bar. Dimensions in mm

► Torque absorbed as a function of pump output pressure (with a mechanical efficiency considered at 90%) Single flow models PA Single flow models PAC 600 Twin flow models PA Twin flow models PAC PA 2x75 PA 75-40 PA 2x57 PA 2x50 ► Calculation of power to be supplied to the shaft as a function of flow and pressure Volumetric efficiency + mechanical efficiency Differential pressure at the pump terminals, in bar Mechanical efficiency

PA | PA C - P e r f o r m a n c e ► Flow as a function of rotating speed S i n gl e flow m o d e ls PA C s e r i e s Single flow models PAC 120 Twin flow models PA Twin flow models PAC Volumetric efficiency These graphs are the results of testwork done in HYDRO LEDUC R&D laboratory, on a specific test bench with a mineral hydraulic fluid ISO VG46 at 25°C (~100 cSt) - disregarding the volumetric efficiency.

A c c e s s o r i e s - PA | PA C I NL E T F I T T I N GS F O R PA | PA C PUM PS See recommendations of the hosing dimensions on page 42. For high speeds, please consult. 9 0 ° elbow fittings, swivel A DE FL E C TO R TO P R OT E C T S H A F T SEALS This deflector ensures the protection of the pump shaft seals. In particular, it protects the pump from projections of dirt from the road in cardan drive installations. Reference: DEF 054111 Deflector The cardan plate enables the pump shaft to be connected to a cardan shaft with interface as on drawing on the right. Note: the maximum admissible...