Medium Duty Piston Pump

Compensator Recovery @ Rated PSI and RPM 65 mil. sec. 65 mil. sec. 42 mil. sec. 42 mil. sec. 75 mil. sec. 75 mil. sec. 125 mil. sec. 125 mil. sec. Maximum Continuous 0,87 bar 0,91 bar 0,94 bar 0,94 bar Inlet Vacuum absolute 4 in. Hg. absolute 3 in. Hg. absolute 2 in. Hg. absolute 2 in. Hg. Max. Thrust Load Into Consult an Eaton Consult an Eaton Consult an Eaton Consult an Eaton Pump and Shaft Side representative and/or representative and/or representative and/or representative and/or Load, for Input Shaft. Eaton engineering. Eaton engineering. Eaton engineering. Eaton engineering. Maximum Continuous Inlet Temperature 107°C 225° F 107°C 225° F 107°C 225° F 107°C 225° F Minimum Operating Temperature -29° C -20° F -29° C -20° F -29° C -20° F -29° C -20° F Weight per single pump 8 kg 18 lbs. 12,3 kg 27 lbs. 11,8 kg 26 lbs. 35,4 kg 78 lbs. 5 Medium Duty Piston Pump Application Information Installation Requirements • Install piston pumps in such a position that the case drain assures an oil level at or above unit center line. • Oil level must be at center line or above before starting piston pump. • Provide a case drain line of adequate size to limit the case pressure to 2 bar [25 PSI] maximum. • Filtration is recommended. • The combined torque required to turn two or more pumps must not exceed the torque rating of the input drive shaft of the front piston pump. Cleanliness In systems that use Eaton medium duty piston pumps the fluid must be maintained at ISO Cleanliness Code 18/13 or better per SAE J1165. This code allows a maximum of 2,500 particles per milliliter greater than 5 μm and a maximum of 80 particles per milliliter greater than 15 μm. When components with different cleanliness requirements are used in the same system, the cleanest standard should be applied. Fluid Recommendations In hydraulic systems that use Eaton's Medium Duty piston pumps and motors, the optimum viscosity range is 10 - 39 cSt [60 - 180 SUS], at normal operating temperatures. Viscosity should never fall below 6 cSt [45 SUS]. At the lowest expected start-up temperature, the viscosity, with a non-charge system, should not exceed 432 cSt [2,000 SUS]. Refer to Eaton's Technical Data sheet #3-401. 6 Medium Duty Piston Pump Model 70122, 19 cm3 /r [1.16 in3 /r] Pressure Port Suction Port Pressure Port Suction Port Load Sensing Line Port Pressure and Flow Compensated Pump Model 70122 Specification Metric Units U.S. Units Mounting Flange 2 Bolt SAE “A” Mount Maximum Displacement / Rev 0 to 19 cm3 /r 0 to 1.16 in3 /r Flow @Rated Speed and PSI 41,6 l/min. 11.0 GPM Maximum Rated Speed 2500 RPM 2500 RPM Continuous Rated Pressure 210 bar 3000 PSI Maximum Intermittent Pressure 275 bar 4000 PSI Continuous Allowable Case Pressure 2 bar 25 PSI Maximum High Pressure Setting @ Zero Flow Std 210 bar Std. 3000 PSI Low Pressure Setting @ Zero Flow Std. 14 bar Std. 200 PSI Compensator Response @ Rated PSI and RPM 15 mil. sec. 15 mil. sec. Compensator Recovery @ Rated PSI and RPM 65 mil. sec. 65 mil. sec. Maximum Continuous Inlet Vacuum 0,87 bar absolute 4 in. Hg. Max. Thrust Load Into Pump and Shaft Side Load, for Consult an Eaton representative and/or Input Shaft. Eaton engineering. Maximum Continuous Inlet Temperature 107°C 225° F Minimum Operating Temperature -29° C -20° F Weight per single pump 8 kg 18 lbs. 7 Medium Duty Piston Pump [Gallons] [12] [9] [6] [3] Liters 50 40 30 20 10 500 1000 1500 2000 2500 Shaft RPM Outlet Flow [Horsepower] [40] [30] [20] [10] 500 1000 1500 2000 2500 Shaft RPM Input Power 70 bar [1000 PSI] 210 bar [3000 PSI] 70 bar [1000 PSI] 210 bar [3000 PSI] Percentage 90 80 60 500 1000 1500 2000 2500 Shaft RPM Volumetric Efficiency 70 bar [1000 PSI] 210 bar [3000 PSI] Percentage 70 60 50 40 500 1000 1500 2000 2500 Shaft RPM Overall Efficiency 70 bar [1000 PSI] 210 bar [3000 PSI] 70 Kilowatts 30 20 10 5 15 25 [Horsepower] [4] [3] [2] [1] 500 1000 1500 2000 2500 Shaft RPM Stand-By Power @ Zero Flow 14 bar [200 PSI] 210 bar [3000 PSI] Kilowatts 3.0 2.0 1.0 .5 1.5 2.5 @ Zero Flow @ Zero Flow Model 70122 Performance Data The charts below are representative of a 19 cm3 /r [1.16 in 3 /r] Pressure-Flow Compensated Piston Pump. The tests were run at an oil temperature of 82°C [180°F] with viscosity 7 - 9 cSt [50 - 54 SUS] and the pump at maximum displacement. 8 Medium Duty Piston Pump Position 1, 2, 3 - Code Title AAY = Model 70122, 19 cm 3 /r [1.16 in3 /r] Pressure or Pressure-Flow Compensated Piston Pump Position 4 - Input Shaft Rotation R = Righthand Rotation (CW) L = Lefthand Rotation (CCW) Position 5, 6 - Input Shaft AB = Straight Shaft Dia. 22,2 [.875], Keyway 6,3 [.25] x 25 [1.0], Shaft Extension 41,1 [1.62] (Key Included) AB Std. AD = 13 Tooth 16/32 Spline, Shaft Extension 41,1 [1.62] AD Std. AF = Straight Shaft Dia. 19,05 [.75], Keyway 4,73 [.186] x 26,2 [1.03], Shaft Extension 44,4 [1.75] (Key Included) AF Opt. AC = 13 Tooth 16/32 Spline, Shaft Extension 41,1 [1.62] with snap ring groove AC Opt. Position 7, 8 - Pressure Compensator Setting 01 = 210-215 bar [3000-3100 PSI] 01 Std. Position 9, 10 - Flow Compensator Setting 00 = No Flow Compensator 00 Std. 01 = 13,1-14,5 bar [190-210 PSI] 01 Std. Position 11 - Compensator Special Features 0 = No Special Feature 0 Std. A = Bleed Off A Opt. Position 12 - Main Ports, Size and Location A = 1.1875 -12 UN Suction Port; 1.0625-12 UN Pressure Port; - SAE Straight Thread O-ring Ports - Rear A Std. C = 1.1875 -12 UN Suction Port; 1.0625-12 UN Pressure Port; - SAE Straight Thread O-ring Ports - Opposite Sides C Std. Position 13 - Drain Port, Size and Location A = .5625-18 UNF - SAE Straight Thread O-ring Port - Right Side of Housing A Std. Position 14 - Auxiliary Rear Mounting 0 = No Auxiliary Mounting 0 Std. Position 15 - Maximum Displacement Option 0 = As Given in Code Title 0 Std. Position 16, 17 - Special Features 00 = No Special Features 00 Std. Position 18, 19 - Paint 0A = Primer 0A Std. Position 20 - Identification 0 = Standard 0 Std. Position 21 - Design Code 0 = Eaton assigned design code 0 Std. Model 70122 Code Code AAY Code Example: AAY R A B 0 1 0 1 0 A A 0 0 0 0 0 A 0 0 Position - 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 0 1 0 0 0 0 0 0 A 0 0 The Model 70122 Pressure or Pressure-Flow Compensated Piston Pumps are specified by the following model code. Once a pump is built from the model code, a product number will be assigned to that arrangement. In using the model code make sure all positions are selected within the 21 digit code for each pump. All left (CCW) or right (CW) directions given are viewed from the input shaft end of the pump. Note: Consult an Eaton representative for additional settings to a max. of 31 bar [450 PSI] Note: Consult an Eaton representative for additional settings from 35 bar [500 PSI] min. 9 Medium Duty Piston Pump Model 70122 Installation Drawings Rear Porting 98,3 [3.87] Left Hand Rotation Counter Clockwise Pressure Port Suction Port 57,2 [2.25] 73,9 [2.91] 135,2 [5.32] 57,9 [2.28] 106,3 [4.19] 139,7 [5.50] Mounting Slots for 9,53[.375] Dia. Bolt 2 Slots 215,4 [8.48] Case Drain Port (Right Side) 9/16-18 UNF For Shaft Configuration See Separate Drawings Load Sensing Port, Flow Compensator 7/16-20 UNF 33,3 [1.31] 15,2 [.60] 170,4 [6.71] 82,52 ± ,03 [3.249 ± .001] Dia. 110,5 [4.35] 6,3 [.25] Suction Port Pressure Port 73,9 [2.91] 57,2 [2.25] Right Hand Rotation Clockwise 98,3 [3.87] 170,1 [6.60] Dimensions are in millimeters [inches], unless otherwise specified. 10 Medium Duty Piston Pump Pressure Port Suction Port Left Hand Rotation Counter Clockwise 129,5 [5.10] 152,5 [6.00] Suction Port Pressure Port 129,5 [5.10] Right Hand Rotation Clockwise Model 70122 Installation Drawings Opposite Side Porting Input Shafts Shaft AB 41,1 [1.62] 6,3 [.25] wide x 24.6 [.97] Lg. Key 22,23 +,00/-,03 [.875 +.000/-.001] Dia. 25,06/24,82 [.987/.977] Dia. 3,0 [.12] Maximum Input Torque 209,3 N·m [1852 lbf·in] Shaft AD 41,1 [1.62] 21,81 [.8585] Dia., 13 Tooth 16/32 DP 30 Degree Involute Fillet Root, Class 1 Side Fit Spline, S.A.E. J498b Maximum Input Torque 209,3 N·m [1852 lbf·in] 19,05 +,00/-,03 [.750 +.000/-.001] Dia. 6,4 [.25] 4,73 [.186] wide x 26,2 [1.03] Lg. Key 21,08 ± ,10 [.830 ± .004] 44,4 [1.75] Shaft AF Maximum Input Torque 113 N·m [1,000 lbf·in] Shaft AC 41,1 [1.62] 1,22 +0,03/-0,05 [.048 +.001/-.002] 2,36 [.093] Ø 19,35±0.08 [Ø .762±.003] 21,81 [.8585] Dia., 13 Tooth 16/32 DP 30 Degree Invlt Fillet Root, Class 1 Side Fit Spline, S.A.E. J498b Maximum Input Torque 209,3 N·m [1,852 lbf·in] 11 Medium Duty Piston Pump Model 70422, 38 cm3 /r [2.32 in3 /r] and Model 70423, 45.4 cm3 /r [2.77 in3 /r] Pressure Port Suction Port Pressure Port Suction Port Load Sensing Line Port Pressure and Flow Compensated Pump Pressure Compensated Pump Model 70422 Model 70423 Specification Metric Units U.S. Units Metric Units U.S. Units Mounting Flange 2 Bolt SAE “B” Mount 2 Bolt SAE “B-B” Mount Maximum Displacement / Rev 0 to 38 cm 3 /r 0 to 2.32 in3 /r 0 to 45 cm 3 /r 0 to 2.77 in3 /r Flow @Rated Speed and PSI 98,4 l/min. 26.0 GPM 125 l/min. 33 GPM Maximum Rated Speed 2700 RPM 2700 RPM 3000 RPM 3000 RPM Continuous Rated Pressure 210 bar 3000 PSI 210 bar 3000 PSI Maximum Intermittent Pressure 275 bar 4000 PSI 265 bar 3800 PSI Continuous Allowable Case Pressure 2 bar 25 PSI 2 bar 25 PSI Maximum High Pressure Setting @ Zero Flow Std. 210 bar Std. 3000 PSI Std. 210 bar Std. 3000 PSI Low Pressure Setting @ Zero Flow Std. 14 bar Std. 200 PSI Std. 14 bar Std. 200 PSI Compensator Response @ Rated PSI and RPM 8 mil. sec. 8 mil. sec. 18 mil. sec. 18 mil. sec. Compensator Recovery @ Rated PSI and RPM 42 mil. sec. 42 mil. sec. 75 mil. sec. 75 mil. sec. Maximum Continuous Inlet Vacuum 0,91 bar absolute 3 in. Hg. 0,94 bar absolute 2 in. Hg. Max. Thrust Load Into Pump and Shaft Side Load, for Consult an Eaton representative and/or Consult an Eaton representative and/or Input Shaft. Eaton engineering. Eaton engineering Maximum Continuous Inlet Temperature 107°C 225° F 107°C 225° F Minimum Operating Temperature -29° C -20° F -29° C -20° F Weight per single pump 12,3 kg 27 lbs. 11,8 kg 26 lbs. 12 Medium Duty Piston Pump Model 70422 Performance Data The charts below are representative of a 38 cm3 /r [2.32 in3 /r] Pressure-Flow Compensated Piston Pump. The tests were run at an oil temperature of 82°C [180°F] with viscosity 7 - 9 cSt [50 - 54 SUS] and the pump at maximum displacement. [Gallons] [20] [15] [10] [5] Liters 75 60 45 30 15 500 1000 1500 2000 2500 3000 Shaft RPM Outlet Flow [Horsepower] [60] [45] [30] [15] Kilowatts 30 20 10 500 1000 1500 2000 2500 3000 Shaft RPM Input Power 70 bar [1000 PSI] 210 bar [3000 PSI] 70 bar [1000 PSI] 210 bar [3000 PSI] Percentage 100 95 85 500 1000 1500 2000 2500 3000 Shaft RPM Volumetric Efficiency 70 bar [1000 PSI] 210 bar [3000 PSI] Percentage 85 80 75 70 500 1000 1500 2000 2500 Shaft RPM Overall Efficiency 70 bar [1000 PSI] 210 bar [3000 PSI] 90 40 3000 [25] 105 90 50 [Horsepower] [8] [6] [4] [2] Kilowatts 3 2 1 500 1000 1500 2000 2500 3000 Shaft RPM 14 bar [200 PSI] 210 bar [3000 PSI] 4 5 6 7 @ Zero Flow @ Zero Flow Stand-By Power @ Zero Flow 13 Medium Duty Piston Pump Model 70423 Performance Data The charts below are representative of a 45 cm3 /r [2.77 in3 /r] Pressure-Flow Compensated Piston Pump. The tests were run at an oil temperature of 82°C [180°F] with viscosity 7 - 9 cSt [50 - 54 SUS] and the pump at maximum displacement. [Gallons] [20] [15] [10] [30] Liters 90 70 500 1000 1500 2000 2500 3000 Shaft RPM Outlet Flow [Horsepower] [60] [45] [30] [15] Kilowatts 30 20 10 500 1000 1500 2000 2500 3000 Shaft RPM Input Power 70 bar [1000 PSI] 210 bar [3000 PSI] 70 bar [1000 PSI] 210 bar [3000 PSI] Percentage 100 95 85 500 1000 1500 2000 2500 3000 Shaft RPM Volumetric Efficiency 70 bar [1000 PSI] 210 bar [3000 PSI] Percentage 75 70 65 60 500 1000 1500 2000 2500 Shaft RPM Overall Efficiency 70 bar [1000 PSI] 210 bar [3000 PSI] 90 40 3000 [25] 130 110 50 50 30 [Horsepower] [8] [6] [4] [2] Kilowatts 3 2 1 500 1000 1500 2000 2500 3000 Shaft RPM 14 bar [200 PSI] 210 bar [3000 PSI] 4 5 6 7 @ Zero Flow @ Zero Flow Stand-By Power @ Zero Flow 14 Medium Duty Piston Pump Model 70422 and 70423 Code Code Example: AAG R A F 0 1 0 1 0 A A 0 0 0 0 0 A 0 0 Position - 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 0 1 0 0 0 0 A 0 0 The Model 70422 and 70423 Pressure or Pressure-Flow Compensated Piston Pumps are specified by the following model code. Once a pump is built from the model code, a product number will be assigned to that arrangement. In using the model code make sure all positions are selected within the 21 digit code for each pump. Position 1, 2, 3 - Code Title AAG = Model 70422, 38 cm3 /r [2.32 in3 /r] Pressure or Pressure-Flow Compensated Piston Pump AAH = Model 70423, 45,4 cm3 /r [2.77 in3 /r] Pressure or Pressure-Flow Compensated Piston Pump Position 4 - Input Shaft Rotation R = Righthand Rotation (CW) L = Lefthand Rotation (CCW) Code AAG AAH Position 5, 6 - Input Shaft AA = 15 Tooth 16/32 Spline, Shaft Extension 46 [1.81] AA Opt. Std. AF = 13 Tooth 16/32 Spline, Shaft Extension 41,1 [1.62] AF Std. Opt. AM = Straight Shaft Dia. 22,2 [.875], Keyway 6,3 [.25] x 25 [1.0], Shaft Extension 41,1 [1.62] (Key Included) AM Std. Opt. AN = Straight Shaft Dia. 25,4 [1.00] , Keyway 6,3 [.25] x 29,5 [1.16] , Shaft Extension 46 [1.81] (Key Included) AN Opt. Std. Position 7, 8 - Pressure Compensator Setting 01 = 210-215 bar [3000-3100 PSI] 01 Std. Std. Position 9, 10 - Flow Compensator Setting 00 = No Flow Compensator 00 Std. Std. 01 = 13,1-14,5 bar [190-210 PSI] 01 Std. Std. Position 11 - Compensator Special Features 0 = No Special Feature 0 Std. Std. A = Bleed Off A Opt. Opt. Position 12 - Main Ports, Size and Location A = 1.625 -12 UN Suction Port; 1.3125-12 UN Pressure Port; - SAE Straight Thread O-ring Ports - Rear A Std. Std. B = 1.625 -12 UN Suction Port; 1.3125-12 UN Pressure Port; - SAE Straight Thread O-ring Ports - Opposite Sides B Std. Std. Position 13 - Drain Port, Size and Location A = .5625-18 UNF - SAE Straight Thread O-ring Port - Right Side of Housing A Std. Std. E = .5625-18 UNF - SAE Straight Thread O-ring Port - Right and Left Side of Housing E Opt. Opt. Position 14 - Auxiliary Rear Mounting 0 = No Auxiliary Mounting 0 Std. Std. B = [2-Bolt A] SAE Flange Series 82-2 with a 9 Tooth 16/32 Intl. Spline, Accepts 38,1 [1.50] Shaft Extension B Opt. Opt. C = [2-Bolt A] SAE Flange Series 82-2 with a 9 Tooth 16/32 Intl. Spline, Accepts 38,1 [1.50] Shaft Extension, with Cover Plate C Opt. Opt. D = [2-Bolt B] SAE Flange Series 101-2 with a 41 Tooth 48/96 External Spline, Accepts 24,9 [.98] Shaft Extension D Opt. Opt.. Position 15 - Maximum Displacement Option 0 = As Given in Code Title 0 Std. Std. Position 16, 17 - Special Features 00 = No Special Features 00 Std. Std. Position 18, 19 - Paint 0A = Primer 0A Std. Std. Position 20 - Identification 0 = Standard 0 Std. Std. Position 21 - Design Code 0 = Eaton assigned design code 0 Std. Std. Allleft(CCW)orright(CW)directions givenareviewed fromtheinputshaft end of the pump. Note: Consult an Eaton representative for additional settings to a max. of 31 bar [450 PSI] Note: Consult an Eaton representative for additional settings from 35 bar [500 PSI] min. 15 Medium Duty Piston Pump Model 70422 and 70423 Installation Drawings Mounting Holes for 12,7 [.50] Dia. Bolt 2 Holes 174,8 [6.88] 72,1 [2.84] 88,1 [3.47] 93,3 [3.67] 146,1 [5.75] Flow Compensator Load Sensing Port 7/16-20 UNF 9,5 [.38] 12,2 [.48] Case Drain Port (Optional RH Side) 9/16-18 UNF 187 [7.36] 232,2 [9.14] 114,9 [4.52] 33,3 [1.31] 101,57±,03 [3.999±,001] Dia. 35,8 [1.41] Pressure Port Suction Port 71,4 [2.81] 98,3 [3.87] Left Hand Rotation Counter Clockwise Pressure Port Suction Port 98,3 [3.87] Right Hand Rotation Clockwise 71,4 [2.81] 35,8 [1.41] For Shaft Configuration See Separate Drawings. Case Drain Port (Optional LH Side) 114,9 [4.52] 191,4 [7.54] Rear Porting Opposite Side Porting 168,1 [6.62] 171,4 [6.75] 168,1 [6.62] Pressure Port Suction Port Left Hand Rotation Counter Clockwise Right Hand Rotation Clockwise Pressure Port Suction Port 16 Medium Duty Piston Pump Model 70422 and 70423 Installation Drawings Mounting Holes for 12,7 [.50] Dia. Bolt 2 Holes 174,8 [6.88] 72,1 [2.84] 117,3 [4.62] 146,1 [5.75] 28,5 [1.12] 159,7 [6.29] 10,4 [.41] 101,68±,03 [4.003±.001] Dia. 45° Flow Compensator Load Sensing Port 7/16-20 UNF 9,5 [.38] 12,2 [.48] Case Drain Port (Optional RH Side) 9/16-18 UNF 217 [8.53] 114,9 [4.52] 28,5 [1.12] 101,57±,03 [3.999±.001] Dia. For Shaft Configuration See Separate Drawings. Case Drain Port (Optional LH Side) 9/16-18 UNF 114,9 [4.52] 171,4 [6.75] Pressure Port Suction Port 93,7 [3.69] Right Hand Rotation Clockwise 146 [5.75] 30° Accepts an "B" Auxiliary Mounting Flange and 41 Tooth, 48/96 DP 45 degrees Involute Fillet Root, Class 1, Side Fit Spline. Pressure Port Suction Port Left Hand Rotation Counter Clockwise 30° 146 [5.75] 93,7 [3.69] 1/2-13 UNC-2B, 2 Places 1/2-13 UNC-2B, 2 Places Opposite Side Porting with 2 Bolt "B" Auxiliary Rear Mounting Opposite Side Porting with 2 Bolt "A" Auxiliary Rear Mounting 106,35 [4.187] 82,63±,03 [3.253±.001] Dia. 7,9 [.31] 205,5 [8.09] 171,4 [6.75] 30° Pressure Port Suction Port Left Hand Rotation Counter Clockwise Right Hand Rotation Clockwise Pressure Port Suction Port 106,35 [4.187] 30° Accepts an "A" Auxiliary Mounting Flange and 9 Tooth, 16/32 DP 30 degrees Involute Flat Root, Class 1, Side Fit Spline, S.A.E. J498b. Units Driven By this spline must not require more than 74,6 N•m [660 lbf•in] 3/8-16 UNC-2B 19 [.75] deep, 2 places 3/8-16 UNC-2B 19 [.75] deep, 2 places 17 Medium Duty Piston Pump Model 70422 and 70423 Installation Drawings Input Shafts Shaft AM 41,1 [1.62] 6,3 [.25] wide x 24,6 [.97] Lg. Key 22,23 +,00/-,03 [.875 +.000/-.001] Dia. 24,94 ±,12 [.982 ±.005] 3,0 [.12] Shaft AN 46,0 [1.81] 6,3 [.25] wide x 28,4 [1.12] Lg. Key 28,095 ±,125 [1.106 ±.005] 25,4 +,000/-,013 [1.0000 +.000/-.0005] Dia. 3,0 [.12] Shaft AA 24,981 [.9835] Dia., 15 Tooth 16/32 DP 30 Degree Involute Flat Root, Class 1 Side Fit Spline, S.A.E. J498b 46,0 [1.81] Maximum Input Torque 337,5 N·m [2987 lbf·in] Shaft AF 41,1 [1.62] 22,2 [.875] Dia., 13 Tooth 16/32 DP 30 Degree Involute Fillet Root, Class 1 Side Fit Spline, S.A.E. J498b Maximum Input Torque 209,3 N·m [1852 lbf·in] Maximum Input Torque 209,3 N·m [1852 lbf·in] Maximum Input Torque 337,5 N·m [2987 lbf·in] Cover Plate Fits SAE "A" Auxiliary Mounting Flange in place of auxiliary pump. A kit (#70142-915) includes Cover Plate, 2 Cap Screws, and O-ring. 106,35 [4.187] 9,53 [.375] Holes (2) for 9,53 [.375] Dia. Bolt 82,55 ± ,03 [3.250 ± .001] Dia. Dimensions are in millimeters [inches], unless otherwise specified. 18 Medium Duty Piston Pump Model 70523, 69 cm3 /r [4.21 in3 /r] Pressure Port Suction Port Pressure Port Suction Port Load Sensing Line Port Pressure and Flow Compensated Pump Pressure Compensated Pump Model 70523 Specification Metric Units U.S. Units Mounting Flange 2 and/or 4 Bolt SAE “C” Mount Maximum Displacement / Rev 0 to 69 cm3 /r 0 to 4.21 in 3 /r Flow @ Rated Speed and PSI 159 l/min. 42 GPM Maximum Rated Speed 2500 RPM 2500 RPM Continuous Rated Pressure 210 bar 3000 PSI Maximum Intermittent Pressure 310 bar 4500 PSI Continuous Allowable Case Pressure 2 bar 25 PSI Maximum High Pressure Setting @ Zero Flow Std. 210 bar Std. 3000 PSI Low Pressure Setting @ Zero Flow Std. 14 bar Std. 200 PSI Compensator Response @ Rated PSI and RPM 35 mil. sec. 35 mil. sec. Compensator Recovery @ Rated PSI and RPM 125 mil. sec. 125 mil. sec. Maximum Continuous Inlet Vacuum 0,94 bar absolute 2 in. Hg. Max. Thrust Load Into Pump and Shaft Side Load, Consult an Eaton representative and/or for Input Shaft. Eaton engineering Maximum Continuous Inlet Temperature 107°C 225° F Minimum Operating Temperature -29° C -20° F Weight per single pump 35,4 kg 78 lbs. 19 Medium Duty Piston Pump Model 70523 Performance Data The charts below are representative of a 69 cm3 /r [4.21 in3 /r] Pressure-Flow Compensated Piston Pump. The tests were run at an oil temperature of 82°C [180°F] with viscosity 7 - 9 cSt [50 - 54 SUS] and the pump at maximum displacement. [Gallons] [40] [30] [20] [10] Liters 150 120 90 60 30 500 1000 1500 2000 2500 Shaft RPM Outlet Flow [Horsepower] [80] [60] [40] [20] Kilowatts 60 40 20 10 500 1000 1500 2000 2500 Shaft RPM Input Power 70 bar [1000 PSI] 210 bar [3000 PSI] 70 bar [1000 PSI] 210 bar [3000 PSI] Percentage 100 95 85 500 1000 1500 2000 2500 Shaft RPM Volumetric Efficiency 70 bar [1000 PSI] 210 bar [3000 PSI] Percentage 85 80 75 70 500 1000 1500 2000 2500 Shaft RPM Overall Efficiency 70 bar [1000 PSI] 210 bar [3000 PSI] 90 30 50 180 70 [Horsepower] [12] [9] [6] [3] Kilowatts 10 6 2 500 1000 1500 2000 2500 Shaft RPM 14 bar [200 PSI] 210 bar [3000 PSI] 4 8 @ Zero Flow @ Zero Flow Stand-By Power @ Zero Flow 20 Medium Duty Piston Pump Position 1, 2, 3 - Code Title AAW = Model 70523, 69 cm3 /r [4.21 in 3 /r] Pressure or Pressure-Flow Compensated Piston Pump Position 4 - Input Shaft Rotation R = Righthand Rotation (CW) L = Lefthand Rotation (CCW) Code AAW Position 5, 6 - Input Shaft AA = 14 Tooth 12/24 Spline, Shaft Extension 55.6 [2.19] AA Std. AC = Straight Shaft Dia. 31.8 [1.25], Keyway 7.98 [.314] x 34.11 [1.343], Shaft Extension 55.6 [2.19] (Key Included) AC Std. Position 7, 8 - Pressure Compensator Setting 01 = 210-215 bar [3000-3100 PSI] 01 Std. Position 9, 10 - Flow Compensator Setting 00 = No Flow Compensator 00 Std. 01 = 13.1-14.57 bar [190-210 PSI] 01 Std. Position 11 - Compensator Special Features 0 = Top Mounted Compensator Assembly, No Special Features 0 Std. D = Rear Mounted Compensator Assembly, No Special Features D Opt.. G = Top Mounted Compensator Assembly with Bleed Off G Opt. Position 12 - Main Ports, Size and Location A = 50.8 [2.00] Suction Port; 25.4 [1.00] Pressure Port; - 4 Bolt Flange, Code 61 - Opposite Sides A Std. B = 50.8 [2.00] Suction Port; 31.8 [1.25] Pressure Port; - 4 Bolt Flange, Code 61 - Opposite Sides B Opt. C = 50.8 [2.00] Suction Port; 31.8 [1.25] Pressure Port; - 4 Bolt Flange, Code 61 - Rear Ports C Opt. Position 13 - Drain Port, Size and Location A = .875-14 - UNF SAE Straight Thread O-ring Port - Left Side of Housing A Std. B = .875-14 - UNF SAE Straight Thread O-ring Port - Right Side of Housing B Std. Position 14 - Auxiliary Rear Mounting 0 = No Auxiliary Mounting 0 Std. B = [2- Bolt B] SAE Flange Series 101-2 with a 13 Tooth 16/32 External Spline (Coupler and O-ring not Included) B Opt. C = [2- Bolt A] SAE Flange Series 82-2 with a 9 Tooth 16/32 External Spline (Coupler and O-ring Included) C Opt. Position 15 - Maximum Displacement Option 0 = As Given in Code Title 0 Std. Position 16, 17 - Special Features 00 = No Special Features 00 Std. Position 18, 19 - Paint 0A = Primer 0A Std. Position 20 - Identification 0 = Standard 0 Std. Position 21 - Design Code 0 = Eaton assigned design code 0 Std. Model 70523 Code Code Example: AAW R A A 0 1 0 1 0 A B 0 0 0 0 0 A 0 0 Position - 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 0 1 0 0 0 0 A 0 0 The Model 70523 Pressure or Pressure-Flow Compensated Piston Pumps are specified by the following model code. Once a pump is built from the model code, a product number will be assigned to that arrangement. In using the Model Code make sure all positions are selected within the 21 digit code for each pump. Allleft(CCW)orright(CW)directions givenareviewed fromtheinputshaft end of the pump. Note: Consult an Eaton representative for additional settings to a max. of 31 bar [450 PSI] Note: Consult an Eaton representative for additional settings from 35 bar [500 PSI] min. 21 Medium Duty Piston Pump Model 70523 Installation Drawings Shaft AA 31,75 [1.25] Dia., 14 Tooth 12/24 DP 30 Degree Involute Flat Root, Class 1 Side Fit Spline, S.A.E. J498b 55,6 [2.19] Maximum Input Torque 642 N·m [5,677 lbf·in] Shaft AC 55,6 [2.19] Maximum Input Torque 642 N·m [5,677 lbf·in] 4,8 [.19] 35,2 ± ,13 [1.386 ± .005] 31,72 ± ,03 [1.249 ± .001] Diameter 7,9 [.311] wide x 33.3 [1.31] Lg. Key Input Shafts Opposite Side Porting with 2 Bolt "A" Auxiliary Rear Mounting and Compensator in Top Position 12,7 [.50] 126,97 ± ,03 [4.999 ±.001] Dia. Case Drain Port (Optional LH Side) .875 -14 UNF Case Drain Port (Optional RH Side) .875 - 14 UNF 271,6 [10.69] 166,1 [6.54] 15,7 [.62] 148,9 [5.86] 148,9 [5.86] Flow Comp. Load Sensing Port 7/16-20 UNF 3/8-16 UNC-2B 19[.75] deep, 2 Places 35° 212,9 [8.38] 120,6 [4.75] 106,4 [4.19] Left Hand Rotation Counter Clockwise 233,2 [9.18] Suction Port Pressure Port 241,3 [9.50] Mounting Holes for 12,7 [.5] Dia. Bolt 4 Places Mounting Slot for 15,88 [.625] Dia. Bolt 114,50 [4.508] 89,9 [3.54] 34° 4,3 [.17] 71,6 [2.82] 93,7 [3.69] 114,5 [4.508] 212,9 [8.38] 180,8 [7.12] Unit Will Accept Another Unit with an S.A.E. "A" Mount Series 82-2 and a 9 Tooth 16/32 DP Spline 31,7 [1.25] from Mounting Flange. Additional units driven by this spline must not require more than 74,6 N•m [660 lbf•in]. 223,3 [8.79] 7,9 [.31] For Shaft Configuration See Separate Drawing 82,63 ±,03 [3.253 ±.001] Dia. Right Hand Rotation Clockwise Flow Compensator Load Sensing Port 7/16-20 UNF 233,2 [9.18] 106,4 [4.19] 35° 212,9 [8.38] 3/8-16 UNC-2B 19[.75] deep, 2 Places 241,3 [9.50] Suction Port Pressure Port 120,6 [4.75] 22 Medium Duty Piston Pump Model 70523 Installation Drawings Flow Compensator Load Sensing Port, 7/16-20 UNF Pressure Port 160 [6.30] 40,4 [1.59] Suction Port 254 [10.00] 310,9 [12.24] Suction Port Flow Compensator Load Sensing Port, 7/16-20 UNF 106,2 [4.18] 160 [6.30] 40,4 [1.59] Right Hand Rotation Clockwise 212.9 [8.38] Pressure Port 241,3 [9.50] 120,6 [4.75] Left Hand Rotation Counter Clockwise 212,9 [8.38] Left Hand Rotation Counter Clockwise 53 [2.09] 106,2 [4.18] Suction Port For Flanged Connection Compatable with SAE J518c Specifications Pressure Port For Flanged Connection Compatable with SAE J518c Specifications 160 [6.30] 40,4 [1.59] Right Hand Rotation Clockwise Pressure Port For Flanged Connection Compatable with SAE J518c Specifications 268,2 [10.56] 53 [2.09] 106,2 [4.18] 160 [6.30] 40,4 [1.59] 106,2 [4.18] 254 [10.0] 310,9 [12.24] Opposite Side Porting with Compensator Position on the Rear Rear Porting with Compensator Position on the Rear 23 Medium Duty Piston Pump Model 70523 Installation Drawings 2-Bolt "B" Auxiliary Rear Mounting 10,4 [.41] 1/2-13 UNC-2B Thru 301,2 [11.86] 146 [5.75] 15° 101,68±,03 [4.003±.001] Dia. Additional Units Driven By This Spline Must Not Require More Than 192,5 N•m [142 lbf•ft] 43,9 [1.73] 13 Tooth 16/32 DP 30° Involute Flat Root Class 1 Side Fit Spline SAE J498b To flange of pump Note: Compensator position on top only. 24 Medium Duty Piston Pump Using the Eaton Pressure-Flow Compensated Piston Pump in Load Sensing Hydraulic Systems. Filter Return Line Load Sensing Line Pressure Line Suction Line Drain Line Reservoir Pressure-Flow Compensated Pump Load Sensing Control Valve PV Operating Characteristics of Pressure-Flow Compensated Piston Pump in Load Sensing Systems: • Variable pressure and variable flow. • Pump is in low-pressure standby mode when system is not actuated. • Pump automatically adjusts output flow and pressure to meet system requirements. • Allows for simultaneous operation of multiple functions. • Fast response to system pressure and flow requirements. • One pump may be used instead of multiple pumps. The Eaton Pressure-Flow Compensated Piston Pump senses pressure and flow requirements and provides only flow and pressure required, plus 14 bar [200 PSI], to operate the compensator. The low pressure standby, 14 bar [200 PSI], prevents excessive heat buildup in the pump and eliminates unnecessary horsepower drain. The pressure-flow compensated load sensing system is noted for its high efficiency and controllability. The following two systems demonstrate the general load sensing concept. Pressure-Flow Compensated - - Load Sensing System. When used with a closed center load sensing control valve, and the hydraulic system is not actuated, the pressure-flow compen- sated piston pump will remain in the low pressure standby mode at only 14 bar [200 PSI]. When a hydraulic function is actuated, the pressure-flow compensated piston pump senses the demand for flow and adjusts the pump displacement to increase the flow required at only the pressure required to operate the circuit, plus the 14 bar [200 PSI] to operate the compensator. The pump will strive to maintain the flow required, at only 14 bar [200 PSI] over the pressure required, under all working conditions of the system. A load sensing line is connected from the load sensing control valve to the pump to feed all the circuit requirements to the pump compensator. The pump will respond to the highest pressure of all the circuits and provide the total flow required to operate multiple circuits. A load sensing line bleed orifice is preferred in the load sensing control valve to prevent high pressure compensation of the piston pump when the control valve is returned to neutral. If the load on the system produces a hydraulic pressure that is equal to the high pressure setting of the compensator, the pump will go into high pressure standby mode and destroke until the load is overcome or the control valve is returned to neutral. This prevents a large volume of pump flow from passing over the system relief valve as Compared to the conventional open center hydraulic system. To achieve true simultaneous operation of individual circuits, a flow compensator should be incorporated in each circuit, otherwise the system will send the most flow to the circuit with the least resistance. In many cases, the heat exchanger may be eliminated because of the systems higher efficiency. 25 Medium Duty Piston Pump Filter Return Line Load Sensing Line Pressure Line Suction Line Drain Line Reservoir Pressure-Flow Compensated Pump Open Center or Closed Center Control Valve PV Heat Exchanger Control Orifice Motor MF Constant Flow - - Load Sensing System When using the pressure-flow compensated piston pump with an open center control valve, the control orifice (fixed or variable) will regulate the volume of oil from the piston pump to the control valve. With the valve spool in neutral, the regulated flow will pass through the control valve then back to tank. The load sensing line is teed into the pressure line downstream from the control orifice. When the control valve spool is actuated, the pump will provide the controlled flow at the actual system operating pres- sure, plus 14 bar [200 PSI]. If the system stalls out under a load, the pump will go into high pressure standby until the load is overcome or the control valve is returned to neutral. This feature eliminates the need for a system relief valve and the inefficiency that it produces. When using the pressure-flow compensated piston pump with a closed center control valve, the pump will be in high pressure standby when the spool is in neutral. When the valve spool is actuated, the pump will provide the flow at maximum pump pressure up to the control valve where the flow capacity of the valve circuit will dictate the flow capacity of the pump. If the controlling orifice is more flow restrictive then the control valve circuit, then the pump will provide the controlled flow at the actual circuit operating pressure plus 14 bar [200 PSI]. If the system stalls out under load, the pump will go into the high pressure standby mode until the load is overcome. This feature eliminates the need for a system relief valve and the inefficiency that it produces. In many cases, the heat exchanger may be eliminated because of the systems higher efficiency. A high pressure relief valve set at 14 - 35 bar [200 - 500 PSI] above the pressure compensatr setting may be necessary. This system can also be used as a constant speed load sensing system to drive a motor. By eliminating the control valve and installing a fixed or variable orifice, the pump can be used to drive a motor at a constant speed regardless of load on the motor. With the load sensing line connected to the downstream side of the orifice, the pump will maintain a constant flow to the motor maintaining a constant motor speed. The only change in motor speed will be from the motor’s volumetric efficiency change in relation to system pressure change. The pump input shaft speed may also be varied within limits while the motor speed remains constant. 26 Medium Duty Piston Pump Filter Return Line Pressure Line Suction Line Drain Line Reservoir Pressure Compensated Pump Closed Center Control Valve PV Heat Exchanger Using the Eaton Pressure Compensated Piston Pump in Closed Center Hydraulic Systems. Operating Characteristics of Pressure Compensated Piston Pump in Closed Center Systems: • Constant Pressure and variable flow. • Pump is in high-pressure standby mode when system is not actuated. • Pump automatically adjusts output flow to meet system requirements. • Allows for simultaneous operation of multiple functions. • Fast response to system pressure or flow requirements. • One pump may be used instead of multiple pumps. Closed Center systems are ideal when the hydraulic system requires several separate functions to operate simultaneously. When used with a closed center control valve, and the hydraulic system is not actuated, the pressure compensated piston pump will remain in the high pressure standby mode at pressures up to 210 bar [3000 PSI]. The pump will maintain the high pressure and zero flow as long as the system is not actuated. When a hydraulic function is actuated, the pressure compensated piston pump senses the change in the demand for flow and adjusts the pump displacement to increase the flow required while maintaining full system pressure up to the control valve. The pump will strive to maintain maximum system pressure to the control valve under all working conditions. The pump will adjust output flow to meet any change in system flow requirements. The pump will maintain full system pressure as long as the system flow requirement does not exceed the total flow capacity of the pump. With constant system pressure and a known working pressure, each function can be independently orificed to provide simultaneous operation and precise cycle time of individual circuits within the hydraulic system. If the hydraulic system stalls out under a load, the pump will go into the high pressure standby mode until the load is overcome. This prevents a large volume of pump flow from passing over the system relief valve as happens in the typical open center hydrau- lic system. 27 11-104 - Char-Lynn Hydraulic Motors, J Series 11-107 - Medium Duty Piston Motors, Models 74111, 74118, 74318 and 74348 11-111 - Char-Lynn Hydraulic Motors, W Series 11-112 - VIS Hydraulic Motors 11-301 - Power Steering, Char-Lynn, 2 Series 11-302 - Char-Lynn Torque Generator, 217 Series and 227 Series 11-303 - Power Steering, Char-Lynn, 20 Series 11-500 - Directional Control Valves, Model 31920 and 31930 11-501 - Directional Control Valves, Models 31520 and 31530 11-503 - In-line Self-Level Valves, Model 39055 11-504 - In-line Flow Control Valves, Part no. 32604 11-506 - Directional Control Valves, Model 30540 11-507 - Directional Control Valves, Model 30920 and 30930 11-508 - Priority, Proportional, Variable Priority and Load Sensing Priority Flow Dividers 11-509 - Manually Operated Selector Valves 11-510 - Relief Valve Assemblies and Cartridges 11-600 - Medium Duty Piston Pumps, Model 70342 and 70344 11-601 - Medium Duty Piston Pumps, model 72400 (Servo Controlled) 11-603 - Medium Duty Piston Pumps, Model 70122, 70422, 70423 and 70523 11-605 - Gear Pumps, L2 Series Model 25500 through 25508 11-606 - Medium Duty Piston Pumps, Model 70142/ 70144 and Model 70145 Variable Displacement Pump 11-609 - Gear Pumps, 26 Series Model 26000 11-700 - Cylinders, Wyr-Loc, Model 580 11-866 - Heavy Duty Hydrostatic Transmissions, Models 33 - 76; Includes description of Pump and Motor Controls 11-872 - Char-Lynn Power Steering - 3,6,12, 4, 110, 230, 450, 25, and 40 Series; Includes Priority Valves, Cushion Crossover Relief Anticavitation Valves, Inlet check Valve, Steering Columns, Steering Wheels, Sizing and Application 11-878 - Char-Lynn Disc Valve Hydraulic Motors, 2000, 4000, 6000 and 10000 Series 11-879 - Hydraulic Motors, ME Series 11-880 - Light Duty Hydrostatic Transmission, Model 6, 7, 11 and Model 11 Pump 11-882 - Controls for Model 33 through 76 Hydrostatic Transmissions 11-885 - Char-Lynn General Purpose Hydraulic Motors, H, S and T Series 11-888 - Hydrostatic Transaxles, Models 751, 851, 771, and 781 1-144 - Hydraulic Gear Motors, B1 Series Model 21300 1-406 - Hydrostatic Right Angle Transaxles, Model 778 Product Catalogs To order catalogs, call your Eaton representative For the nearest Eaton representative, contact: Eaton Corporation Hydraulics Division 15151 Highway 5 Eden Prairie, MN 55344 http://www.eatonhydraulics.com © 2009 Eaton Corporation All Rights Reserved Printed in USA Document No. E-PUPI-MC005-E Supersedes 11-603 March 2009 Eaton Fluid Power Group Hydraulics Business USA 14615 Lone Oak Road Eden Prairie, MN 55344 USA Tel: 952-937-9800 Fax: 952-294-7722 www.eaton.com/hydraulics Eaton Fluid Power Group Hydraulics Business Europe Route de la Longeraie 7 1110 Morges Switzerland Tel: +41 (0) 21 811 4600 Fax: +41 (0) 21 811 4601 Eaton Fluid Power Group Hydraulics Business Asia Pacific 11th Floor Hong Kong New World Tower 300 Huaihai Zhong Road Shanghai 200021 China Tel: 86-21-6387-9988 Fax: 86-21-6335-3912