Headquarters: CASAPPA S.p.A. Via Balestrieri, 1 43044 Lemignano di Collecchio Parma (Italy) Tel. (+39) 0521 30 41 11 Fax (+39) 0521 80 46 00 E-mail: [email protected] www.casappa.com HYDRAULIC GEAR PUMPS AND MOTORS

INDEX Section Modification from former edition. DCAT033-ID02

INTRODUCTION “POLARIS” more than fifty years of Casappa experience in design and production of hydraulic components, characterized by large investments in research and development in order to propose new and personalized solutions to the market. Our use of CAD 3D in the developement of this generation permit us the 3D modelling and the virtual simulation of the behaviour of the components inserted in the hydraulic circuit. This means that the process will take less time and the quality of the products is better. Polaris pumps and motors are basically composed of a gear housing in aluminium alloy,...

Pump The direction of rotation of single-rotation pumps must be the same as that of the drive shaft. Check that the coupling flange correctly aligns the transmission shaft and the pump shaft. Flexible couplings should be used (never rigid fittings) which will not generate an axial or radial load on the pump shaft. Motor The direction of rotation of single-rotation motors must match circuit connections. Check that the coupling flange correctly aligns the transmission shaft and the motor shaft. Flexible couplings should be used (never rigid fittings) which will not generate an axial or radial load...

FEATURES External gear pumps and motors 3-piece construction EUROPEAN - SAE - GERMAN standard flanges Direction of rotation (looking on drive shaft) Anti-clockwise (S) - clockwise (D) - reversible external drain (R - L) reversible internal drain (B) Inlet pressure range for pumps 0,7 ÷ 3 bar abs. (10 ÷ 44 psi) If p > 1,5 bar abs. (22 psi) specific shaft sealing have to be applied. Please consult our pre-sales department. 5 bar (73 psi) continuous @ min. speed 350 min-1 Max back pressure for single rotation motors 1 bar (14.5 psi) continuous @ max. speed (see page 7) 5 bar (73 psi) continuous...

Casappa recommends to use its own production filters: Achieved with filter ß10 (c) ≥ 75 according to ISO 16889 Achieved with filter ß25 (c) ≥ 200 according to ISO 16889 DEFINITION OF ROTATION DIRECTION LOOKING AT THE DRIVE SHAFT Anti-Clockwise rotation Clockwise rotation Reversible rotation GENERAL NOTES Available with different inlet and outlet ports. For more information please consult our pre-sales department. p1 Constant operating pressure p2 System pressure (relief valve setting) p3 Peak of pressure The peak of pressure is the max pressure allowed and it corresponds to the overshoot of the...

Pump type PLP Motor type PLM Pressure values in the table refer to side ports unidirectional pumps and motors. For reversible pumps and motors, max pressures are 250 bar (3600 psi) excepted those with lower pressure values. For different configurations and working c

GENERAL DATA PUMPS AND MOTORS Q Volumetric efficiency Hydro-mechanical efficiency Overall efficiency Qtheor. • ηv V•n 1000 Mtheor. ηhm Δp • V 62,83 POUT ηt Δp • Q 600 DESIGN CALCULATIONS FOR MOTOR Q DESIGN CALCULATIONS FOR PUMP Diagrams providing approximate selection data wi

POLARIS 10 GEAR PUMPS PERFORMANCE CURVES PLP 10 Each curve has been obtained at 50 °C (122 °F), using oil with viscosity 46 cSt (210 SSU) at 40 °C (104 °F) and at these pressures.

POLARIS 10 GEAR PUMPS PERFORMANCE CURVES PLP 10•1,5

POLARIS 10 GEAR PUMPS PERFORMANCE CURVES PLP 10•4

POLARIS 10 GEAR PUMPS PERFORMANCE CURVES PLP 10•6,3

POLARIS 20 GEAR PUMPS PERFORMANCE CURVES PLP 20 Each curve has been obtained at 50 °C (122 °F), using oil with viscosity 46 cSt (210 SSU) at 40 °C (104 °F) and at these pressures.

POLARIS 20 GEAR PUMPS PERFORMANCE CURVES PLP 20•6,3

POLARIS 20 GEAR PUMPS PERFORMANCE CURVES PLP 20•10,5

POLARIS 20 GEAR PUMPS PERFORMANCE CURVES PLP 20•19

POLARIS 20 GEAR PUMPS PERFORMANCE CURVES PLP 20•25

POLARIS 30 GEAR PUMPS PERFORMANCE CURVES PLP 30 Each curve has been obtained at 50 °C (122 °F), using oil with viscosity 46 cSt (210 SSU) at 40 °C (104 °F) and at these pressures.

POLARIS 30 GEAR PUMPS PERFORMANCE CURVES PLP 30•38

POLARIS 30 GEAR PUMPS PERFORMANCE CURVES PLP 30•73

POLARIS 10 GEAR MOTORS PERFORMANCE CURVES PLM 10 Each curve has been obtained at 50 °C (122 °F), using oil with viscosity 46 cSt (210 SSU) at 40 °C (104 °F) and at these pressures.

POLARIS 10 GEAR MOTORS PERFORMANCE CURVES PLM 10•1,5

POLARIS 10 GEAR MOTORS PERFORMANCE CURVES PLM 10•4

POLARIS 10 GEAR MOTORS PERFORMANCE CURVES PLM 10•6,3

POLARIS 20 GEAR MOTORS PERFORMANCE CURVES PLM 20 Each curve has been obtained at 50 °C (122 °F), using oil with viscosity 46 cSt (210 SSU) at 40 °C (104 °F) and at these pressures.

POLARIS 20 GEAR MOTORS PERFORMANCE CURVES PLM 20•6,3

POLARIS 20 GEAR MOTORS PERFORMANCE CURVES PLM 20•10,5

POLARIS 20 GEAR MOTORS PERFORMANCE CURVES PLM 20•19

POLARIS 20 GEAR MOTORS PERFORMANCE CURVES PLM 20•25

POLARIS 30 GEAR MOTORS PERFORMANCE CURVES PLM 30 Each curve has been obtained at 50 °C (122 °F), using oil with viscosity 46 cSt (210 SSU) at 40 °C (104 °F) and at these pressures.

POLARIS 30 GEAR MOTORS PERFORMANCE CURVES PLM 30•38

POLARIS 30 GEAR MOTORS PERFORMANCE CURVES PLM 30•61

SINGLE UNITS DIMENSIONS - SIDE PORTS Ports availability: Gas, SAE, German. See page 70 Drive shafts: page 52 Mounting flange: for X dimension see page 58 ÷ 60 For single rotation S - D and reversible rototion R the rear cover is available in cast iron and aluminium. For reversible rotation B and L the rear cover is in aluminium only. Reversible L drain port position: L = Side Þ= Bottom

SINGLE UNITS DIMENSIONS - REAR PORTS Drive shafts: page 52 Mounting flange: for X dimension see page 58 ÷ 60 Ports availability: Gas, SAE See page 70 Reversible L drain port position: Þ= Bottom Rear cover in aluminium only. Pump type Motor type