HYDRAULIC GEAR PUMPS AND MOTORS
52Pages

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 IP Videoconferencing E-mail: info@casappa.com www.casappa.com HYDRAULIC GEAR PUMPS AND MOTORS

INDEX Section Modification from former edition. DCAT034-ID02

“PH” series gear pumps and motors is an evolution of the “POLARIS” series. “POLARIS PH” has a new body made of cast iron to have higher operating parameters and keep the full POLARIS versatility regarding shafts, flanges, ports and built-in valves. This project is targeted for forklifts, skid steer loaders and all those applications where traditional aluminum pumps are being pushed close to their limits. The possibility to mate the body with the cast iron covers further reduces noise levels, in addition to increasing strength. From 8.26 cm3/rev (0.50 in3/rev) To 33,03 cm3/rev (2.01 in3/rev)...

3 CASAPPA FLUID POWER DESIGN INSTRUCTIONS 0,5 bar abs. (7 psi) + 50% of standard values INSTALLATION 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...

Construction Mounting Ports Direction of rotation (looking on drive shaft) Inlet pressure range for pumps Max back pressure for single rotation motors Max drain line pressure on reversible rotation motors Max back pressure on in series motors Fluid temperature range Viscosity range Filtering requirement and recommended fluid contamination Heavy duty external gear pumps and motors 3-piece construction EUROPEAN - SAE - GERMAN standard flanges Threaded or split flange Anti-clockwise (S) - clockwise (D) - reversible external drain (R - L) reversible internal drain (B) 0,7 4 3 bar abs. (10 4 44...

3 CASAPPA FLUID POWER DESIGN FEATURES Filtration Tab. 2_ Working pressure bar (psi) Contamination class NAS 1638 Contamination class ISO 4406 Achieved with filter R10 (c) > 200 ISO 16889 Achieved with filter R25 (c) > 200 ISO 16889 Casappa recommends to use its own production filters: M IKRON Fluid Filtration Definition of rotation direction looking on the drive shaft Clockwise rotation Reversible rotation Pressure definition O -1- 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...

Max. pressure Pump type PHP Displacement Max. speed Min. speed 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 conditions please consult our pre-sales department. nhm= nhm (V, Ap, n) Hydro-mechanical efficiency nt = nv *nhm Overall efficiency DESIGN CALCULATIONS FOR PUMP DESIGN CALCULATIONS FOR MOTOR

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.

GEAR PUMPS PERFORMANCE CURVES

GEAR PUMPS PERFORMANCE CURVES

GEAR PUMPS PERFORMANCE CURVES

GEAR PUMPS PERFORMANCE CURVES

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.

GEAR MOTORS PERFORMANCE CURVES

GEAR MOTORS PERFORMANCE CURVES

GEAR MOTORS PERFORMANCE CURVES

GEAR MOTORS PERFORMANCE CURVES

3 CASAPPA FLUID POWER DESIGN POLARIS PH SINGLE UNITS DIMENSIONS - SIDE PORTS L Drive shafts: page 31 -e 33 Ports availability: European, Split, Gas, Mounting flange: for X dimension see SAE and German. See page 38 page 34 37 For single rotation S - D, reversible B and R the rear cover is available in cast iron and aluminium. For reversible rotation L the rear cover is in aluminium only. IVIotor type mm (inch) mm (inch) mm (inch) mm (inch) mm (inch)

'A CASAPPA FLUID POWER DESIGN POLARIS PH SINGLE UNITS DIMENSIONS - REAR PORTS P Drive shafts: page 31 ^ 33 Ports availability: Gas and SAE. Mounting flange: for X dimension see See page 38 page 34 37 Reversible R Single rotation S - D and Reversible B Rear cover in aluminium only. Reversible L drain port position: *= Bottom Pump type Motor type PH.20^8 O PH. 20^10,5 O PH. 20^11,2 O PH.20^14 O PH.20^16 O PH.20^18 O PH.20^19 PH. 20^20 PH. 20^23 PH. 20^24,5 PH.20^25 PH. 20^27,8 PH. 20^31,5

3 CASAPPA FLUID POWER DESIGN MULTIPLE PUMPS POLARIS PH series pumps can be coupled together in combination. Where the input power requirements of each section varies, that with the greater requirement must be at the drive shaft end, and progressively smaller to the rear. Features and performances are the same as the corresponding single pumps, but pressures must be limited by the transmissible torque of the drive and connecting shafts. To have appropriate data, use the formula below. The maximum rotational speed is the one of the lowest rated speed of the single units incorporated....

INLET PORTS CONFIGURATIONSTANDARD VERSION COMMON INLET Reduced inlets provide overall systems savings by reducing the cost of redundant inlet hose and fittings. For other combinations please consult our pre-sales department. MULTIPLE PUMPS COMBINATION PHP 20/20STANDARD VERSION S6 PHP 20/20 COMMON INLET VERSION S7 PHP 20/20 SEPARATED STAGES VERSION

PHP 20/PLP20 COMMON INLET VERSION S7 PHP 20/PLP20 SEPARATED STAGES VERSION Z6 PHP 20/PLP10 COMMON INLET VERSION T7

MULTIPLE PUMPS COMBINATION PHP 20/PLP10 SEPARATED STAGES VERSION

Drive shafts: page 31 -e 33 Ports availability: European, Split, Gas, Mounting flange: for X dimension see SAE and German. See page 38 page 34 37 Pump type Pump type

'A CASAPPA FLUID POWER DESIGN POLARIS PH MULTIPLE PUMPS DIMENSIONS Drive shafts: page 31 ^ 33 Ports availability: European, Split, Gas, Mounting flange: for X dimension see SAE and German. See page 38 page 34 37 Rear cover in cast iron and aluminium. Pump type Pump type