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D Series Gear Pumps - 36 Pages

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Catalogue excerpts

Series DHydraulic Gear PumpsTechnical Information >

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DatePageChangedRev. October 200720SF shaft - correct length is 31.8 [1.50]ACDecember 2004-Updated model code pages1 March 2004-First edition- 2007 Sauer-Danfoss. All rights reserved. >

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CONSTRUCTION Pressure balanced deflecting plate One piece gear construction All D Series pump gear shafts are of one-piece construction. This enables the shaft to provide uniform high strength and accurate gear profile relative to the journals for smooth mesh operation. This design controls all gear tolerances, in particular total radial run-out of the gear and gear face parallelism. The integral gear shafts are constructed of heat-treated AISI 8620 steel manufactured to precise tolerances and surface finishes for maximum life and minimal leakage. This integral design eliminates the potential...

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FeaturesDescription ConstructionHeavy duty ductile iron 3-piece construction Displacements7 to 45 cm [0.43 to 2.75 in > 3 /rev]Pressure (inlet)0.8 bar absolute [6.3 in Hg] recommended, 0.6 bar abs. [12.2 in Hg vac.] cold start Pressure (outlet)276 bar [4000 psi] to 32.8 cmӳ [1.94 in > 3 /rev] Speed600 - 3400 min min > -1 (rpm)MountingSAE-A, SAE-B, Perkins engine mount and specials available upon request. Shaft (types)SAE splined, keyed, tapered, and specials available upon request. Axial / radial loadContact Sauer-Danfoss Technical Support Fluid viscosity10 mmβ/sec (cSt) [60 SUS] minimum, 1600...

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ORDER CODE Single pumpsTandem pumps B 1 2 3 1 2 C D E F H J KA ֖ ֖ ֖ ֖ > B 1 2 3 1 2 C R S D E F H J KA ֖ ֖ ֖ ֖ ֖ > Example order code for single pumpsExample order code for tandem pumps ABCDEFHJK DE1L25SHBBN104NNN000AJANNNN ABCRSDEFHJK DE2L25SHBB10425N104NNN000AXANNNN For single pumps, R and S positions are omitted. A1: Product CodeDescription DED Series, revision level E A2: Sections CodeDescription 1Single section pump 2Dual section pump A3: Rotation CodeDescription LLeft hand (counterclockwise) RRight hand (clockwise) All available options are not shown in the model code. Please contact your...

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ORDER CODE (continued) Single pumpsTandem pumps B 1 2 3 1 2 C D E F H J KA ֖ ֖ ֖ ֖ > B 1 2 3 1 2 C R S D E F H J KA ֖ ֖ ֖ ֖ ֖ > B1: Displacement 1 Codecm / rev [in 3 / rev] Codecmӳ / rev [in 3 / rev] 077.0 [0.43] 109.5 [0.58] 1312.6 [0.77] 1414.3 [0.87] 1717.0 [1.04] 1919.0 [1.16] 2120.5 [1.25] 2322.5 [1.37] 2525.4 [1.55] 2929.0 [1.77] 3231.8 [1.94] 3838.0 [2.32] 4141.0 [2.50] B2: Input shaft Code SCSAE 11 tooth spline, 1.50 in lengthSESAE 9 tooth spline, 1.25 in lengthSF11 tooth spline, 1.25 in length (special modified length)SHSAE 13 tooth spline, 1.62 in lengthPB22 mm (7/8 in) dia x 41 mm(1.62...

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ORDER CODE (continued) Single pumpsTandem pumps B 1 2 3 1 2 C D E F H J KA ֖ ֖ ֖ ֖ > B 1 2 3 1 2 C R S D E F H J KA ֖ ֖ ֖ ֖ ֖ > S: Rear displacement of tandem pump (omit if single pump) Codecm / rev [in 3 / rev] 077.0 [0.43] 109.5 [0.58] 1312.6 [0.77] 1414.3 [0.87] 1717.0 [1.04] 1919.0 [1.16] 2120.5 [1.25] 2322.5 [1.37] 2525.4 [1.55] 2929.0 [1.77] 3231.8 [1.94] 3838.0 [2.32] 4141.0 [2.50] D: Rear cover port options CodeLocationPort typeInlet sizeOutlet size N101RadialO-ring boss1-1/16 in7/8 in N104RadialO-ring boss1-5/16 in1-1/16 in N113RadialO-ring bossNA7/8 in N125RadialO-ring boss1-5/8 in1-1/16...

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ORDER CODE (continued) Single pumpsTandem pumps B 1 2 3 1 2 C D E F H J KA ֖ ֖ ֖ ֖ > B 1 2 3 1 2 C R S D E F H J KA ֖ ֖ ֖ ֖ ֖ > J: Nameplate CodeDescription ANStandard nameplate (do not use with N504) BNStandard label (use with rear cover code N504) K: Special features CodeDescription NNNNo special features, standard black paint All available options are not shown in the model code. Please contact your Sauer-Danfoss representative if your application requires an option not shown in the model code. 16 520L0781 Rev AC Օ October 2007 size="-3">

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OPERATING PARAMETERS Definitions of the D Series operating parameters appear below. Consult Sauer-Danfoss technical support for applications running outside of these parameters. Recommended fluid velocities Line sizing Inlet conditions should be reviewed to minimize inlet oil velocity and inlet vacuums. This will result in quieter system operation, reduced operating temperatures and longer pump life. To avoid pump cavitation, the maximum inlet line flow should not exceed 4.3 m/sec (14 ft/sec). Discharge velocity should be limited to 8 m/sec (18 ft/sec). > Inlet 4.3 m/sec [14 ft/sec] Discharge...

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OPERATING PARAMETERS (continued) Fluids Catalog ratings for D series gear pumps are based on operation with a premium hydraulic fluid containing oxidation, rust, and foam inhibitors. The fluid must possess good thermal and hydrolytic stability to prevent wear, erosion, and corrosion of internal components. Consult Sauer-Danfoss technical support before using non-petroleum based (including water glycol), fire-resistant, or biodegradable fluids. The use of these fluids may require special seal materials and/or specially designed hardware.For more information on hydraulic fluid selection, see Sauer-Danfoss...

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OPERATING PARAMETERS (continued) Filtration To prevent damage to the pump, including premature wear, fluid entering the pump inlet must be free of contaminants. D series pumps require system filtration capable of maintaining fluid cleanliness at ISO 4406-1999 class 22/18/13 or better.Sauer-Danfoss does not recommend suction line filtration. Suction line filtration can cause high inlet vacuum, which limits pump operating speed. Instead we recommend a 100 micron screen in the reservoir covering the pump inlet. This protects the pump from coarse particle ingestion.Return line filtration is the preferred...

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PUMP DRIVES Pump drive D Series pumps can be direct-driven by tapered, straight keyed or splined drive. They are well suited for external gear or pulley drive. Gear drive for the pump can be by spur or helical gear.Contact Sauer-Danfoss technical support for all non-standard direct-driven and all gear-driven or pulley-driven applications. The figures on the next page show the information Sauer-Danfoss requires to analyze applications using a gear or pulley drive. From this information, Sauer-Danfoss determines: If the drive method is feasible Օ Optimum range of angles for driving the pump or motor...

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