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CASAPPA
POLARIS PL

POLARIS PL

Product catalog summary

Introduction
The Polaris series by Casappa highlights over fifty years of expertise in hydraulic component design, focusing on innovation through research and development. The use of CAD 3D modeling enhances product quality and reduces development time. The pumps and motors are constructed with aluminum alloy gear housing, sleeve bearings, and end plates made of aluminum or cast iron, ensuring efficiency and low noise.

Specifications

Displacements range from 1.07 cm³/rev to 91.10 cm³/rev.
Maximum constant operating pressure is 260 bar, with a peak pressure of 300 bar.
Maximum speed is 4000 min^-1.

Instructions

Ensure correct alignment of transmission and pump/motor shafts using flexible couplings.
Tank capacity should be three times the oil in circulation to prevent overheating.
Lines should be short, with minimal hydraulic resistance, and perfectly sealed.
Use hydraulic fluid conforming to specified viscosity data and avoid mixing different oils.
Filter the entire system flow according to contamination class requirements.
Store in a dry environment with temperatures between 5°C and 20°C.
During startup, ensure all connections are tight and the system is clean.

Features

External gear pumps and motors with 3-piece construction.
Available with European, SAE, and German standard flanges.
Various inlet and outlet ports available.
Reversible and single rotation options with specific pressure and speed limits.

Performance Curves
Performance curves for gear pumps and motors are provided, detailing efficiency and operational parameters.

Ordering Information
Instructions on ordering single, multiple, and double pumps with different groups are included, ensuring compatibility with various applications.

Design Calculations for Motor
The document provides formulas for calculating theoretical and actual flow rates (Q), torque (M), and power input/output (PIN/POUT) for motors. Key equations include:

Q = Qtheor. / ηv
M = Mtheor. * ηhm
PIN = Δp * Q / 600
POUT = PIN * ηt

Performance Curves
Performance curves for Polaris gear pumps and motors (PLP and PLM series) are presented. Each curve is obtained at 50°C using oil with a viscosity of 46 cSt at 40°C. The document lists pressure ranges for various models, such as:

PLP 10 series: 20 bar to 260 bar
PLP 20 series: 20 bar to 250 bar
PLP 30 series: 20 bar to 240 bar

Dimensions
Dimensions for single units with side and rear ports are detailed for PLP and PLM series. Measurements are provided in millimeters and inches for various pump types, indicating the size and configuration of components.

Multiple Pumps
The document discusses the combination of multiple pumps, emphasizing that the section with the greatest power requirement should be at the drive shaft end. It provides torque and displacement data, highlighting the importance of not exceeding the maximum torque limit for the first pump's shaft.

Notes
Additional notes mention the availability of diagrams for approximate selection data and the importance of consulting the pre-sales department for specific configurations and combinations.

Overview
This document provides detailed specifications and compatibility information for Polaris multiple pump models PLP 10, PLP 20, and PLP 30. It includes dimensions, drive shaft options, mounting flanges, and outboard bearing configurations.

Specifications

Pump Dimensions: Detailed measurements for various pump types within the PLP 10, PLP 20, and PLP 30 series are provided, including dimensions in millimeters and inches.
Drive Shafts: Information on available drive shaft types for each pump series, including SAE and European standards, with specific mounting face codes.
Mounting Flanges: Compatibility tables for different mounting flange materials (cast iron and aluminum) and their compatibility with various drive shafts and versions.

Procedures

Installation: Reference pages for drive shaft installation and mounting flange dimensions are provided for each pump series.

Standards and Norms

Drive shafts and splines conform to SAE J498B standards, with specific pitch and tooth configurations.

Recommendations

For specific applications, consult the pre-sales department for tailored advice, especially concerning outboard bearing life expectancy and load configurations.

Diagrams and Graphs

Graphs illustrating radial load versus equivalent load and rated fatigue life for different configurations and conditions, such as lubricant type and temperature.

Critical Information

Ensure compatibility of drive shafts and mounting flanges as per the provided tables to avoid installation issues.
Consider environmental factors like temperature and contamination level when assessing bearing life expectancy.

Catalog excerpts

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

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INDEX Section Modification from former edition. DCAT033-ID02

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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,...

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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...

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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...

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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...

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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

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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

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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.

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

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POLARIS 10 GEAR PUMPS PERFORMANCE CURVES PLP 10•4

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

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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.

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

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

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POLARIS 20 GEAR PUMPS PERFORMANCE CURVES PLP 20•19

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POLARIS 20 GEAR PUMPS PERFORMANCE CURVES PLP 20•25

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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.

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POLARIS 30 GEAR PUMPS PERFORMANCE CURVES PLP 30•38

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POLARIS 30 GEAR PUMPS PERFORMANCE CURVES PLP 30•73

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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.

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

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POLARIS 10 GEAR MOTORS PERFORMANCE CURVES PLM 10•4

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

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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.

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

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

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POLARIS 20 GEAR MOTORS PERFORMANCE CURVES PLM 20•19

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POLARIS 20 GEAR MOTORS PERFORMANCE CURVES PLM 20•25

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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.

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POLARIS 30 GEAR MOTORS PERFORMANCE CURVES PLM 30•38

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POLARIS 30 GEAR MOTORS PERFORMANCE CURVES PLM 30•61

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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

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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

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