Group 1 Gear Pumps. Technical Information. OpenCircuitGear MEMBER OF THE SAUER-DANFOSS GROUP

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1 Group 1 Gear Pumps OpenCircuitGear Technical Information

2 General Information History of revisions Table of revisions Date Page Changed Rev., June 1 - First edition Reference documents Literature reference for gear products Title Type Order number General luminum Gear Pumps and Motors L1138 Group Gear Pumps L1131 Group 3 Gear Pumps L115 Group 1, and 3 Gear Motors L118 Hydraulic Fluids and Lubricants L111 Experience with Biodegradable Hydraulic Fluids L1193 Overview The Turolla OCG Group 1 is a range of peak performance fixed-displacement gear pumps. Constructed of a high-strength extruded aluminum body with aluminum cover and flange, all pumps are pressure-balanced for exceptional efficiency. The flexibility of the range, combined with high efficiency and low noise, makes the pumps in this series ideal for a wide range of applications, including: turf care, aerial lifts, material handling, and power packs. SNP1NN 1B SKP1NN S SNP1NN 3C Features and benefits Gear pump attributes: Up to 11 displacements from 1. to 1 cm 3 /rev [from.7 to.73 in 3 /rev] Continuous pressure rating up to 5 bar [35 psi] -1 Speeds up to min (rpm) SE, ISO, and DIN mounting flanges and shafts Compact, lightweight, quiet operation vailable as unidirectional and bi-directional motors, also with integral relief valve You can combine groups 1, and 3 to make multi-stage pumps 1 Turolla OpenCircuitGear. ll rights reserved. Turolla OCG accepts no responsibility for possible errors in catalogs, brochures and other printed material. Turolla OCG reserves the right to alter its products without prior notice. This also applies to products already ordered provided that such alterations can be made without affecting agreed specifi cations. ll trademarks in this material are properties of their respective owners. Sauer-Danfoss, Turolla, Turolla OpenCircuitGear, Turolla OCG, OpenCircuitGear, Fast Lane and PLUS+1 are trademarks of the Sauer-Danfoss Group. L11399 June 1 Rev

3 Contents General Information Pump design... Pump displacements... SEP1NN... SNP1NN... SKP1NN... SNP1IN... Technical data... 5 Product Coding Model code... Determination of Nominal Pump Sizes System Requirements Determination of nominal pump sizes... 8 Pressure... 9 Speed... 9 Hydraulic fluids...1 Temperature and...1 viscosity...1 Filtration...11 Reservoir...11 Filters...11 Selecting a filter...11 Line sizing...1 Pump drive...1 Pump drive data form...13 Pump life...1 Sound levels...1 Pump Performance Pump performance graphs...15 Product Options Flange, shaft and port configurations...18 Mounting flanges...19 Shaft options...19 Inlet/Outlet port configurations... Ports...1 Integral relief valve... Integral relief valve covers SNP1IN... Variant codes for ordering integral relief valves...3 Integral relief valve schematic...3 Dimensions SNP1NN 1B and 1D... SKP1NN BB and F...5 SNP1NN, SEP1NN 3C... SKP1NN G and S...7 L11399 June 1 Rev 3

4 General Information Pump design SEP1NN SEP1NN is available in a limited displacement range. In addition to European flange and shaft configurations (code 1D, 1B, and 3C), the range includes special shafts and flanges for power pack applications. SEP1NN has a lower pressure rating than SNP1NN and SKP1NN. SNP1NN SNP1NN is available in a limited displacement range but with higher-pressure ratings than the SEP1NN. This is because of DU bushings used in its design. SNP1NN pumps only include European flange and shaft configurations (code 1B, 1D, and 3C). SNP1NN 1B (cut away) SKP1NN SKP1NN has a larger diameter shaft than either the SEP1NN or SNP. It spans the complete displacement range at higher pressures than the SEP1NN and SNP1NN. Configurations include European and SE flanges and shafts (code BB, F, S, and G). SNP1IN Turolla OCG offers an optional integral relief valve integrated in the rear cover. It is drained internally and directs all flow from the pump outlet to the inlet when the outlet pressure reaches the valve setting. SNI1 pumps only include European flange and shaft configurations (code 1B, 1D, and 3C). SNP1IN 3C (cut away) Pump displacements Quick reference chart for pump displacements vs. rated pressure Rated pressure (bar) 5{ SNP1NN SKP1NN SEP1NN Displacement (cm 3 /rev) L11399 June 1 Rev

5 General Information Technical data Specifications for the SNP1NN, SEP1NN and SKP1NN Group 1 gear pumps. Displacement SNP1NN Peak pressure Rated pressure 1 kg m = 3.8 lb ft cm 3 /rev [in 3 /rev] bar [psi] Frame size 1, 1,7,, 3, 3,8,3, 7, [.7] 7 [3915] 5 [35] 1.57 [.9] 7 [3915] 5 [35].9 [.18] 7 [3915] 5 [35]. [.1] 7 [3915] 5 [35] 3.1 [.19] 7 [3915] 5 [35] 3. [.3] 7 [3915] 5 [35].19 [.5] 7 [3915] 5 [35] 5.89 [.359] 1 [35] 19 [7] 7.59 [.3] 17 [5] 15 [175] Minimum speed at -15 bar Min. speed at 15 bar min -1 (rpm) to rated pressure Maximum speed SEP1NN Peak pressure Rated pressure bar [psi] 3 [3335] 1 [35] 3 [3335] 1 [35] 3 [3335] 1 [35] 3 [3335] 1 [35] 3 [3335] 1 [35] 3 [3335] 1 [35] 3 [3335] 1 [35] 19 [7] 17 [5] 1 [3] 1 [3] Minimum speed at -15 bar Min. speed at 15 bar min -1 (rpm) to rated pressure Maximum speed SKP1NN* Peak pressure Rated pressure Minimum speed at -15 bar Min. speed at 15 bar to rated pressure bar [psi] min -1 (rpm) 7 [3915] 5 [35] 7 [3915] 5 [35] 7 [3915] 5 [35] 7 [3915] 5 [35] 7 [3915] 5 [35] 7 [3915] 5 [35] 7 [3915] 5 [35] 5 [35] 3 [3335] [319] [9] 9.9 [.7] 1. [.73] 17 [5] 15 [175] 1 [3] 1 [17] Maximum speed ll (SNP1NN, SEP1NN, SKP1NN) Weight Moment of inertia of rotating components Theoretical flow at maximum speed kg [lb] x 1 - kg m [x 1 - lb ft ] l/min [US gal/min] 1. [.] 3. [77].7 [1.5] 1.5 [.31] 3.7 [89].8 [1.] 1.9 [.]. [15] 8.3 [.1] 1.11 [.5] 5.1 [1] 1.8 [.77] 1.1 [.51] 5.7 [13] 1.5 [3.3] 1.18 [.]. [15] 1. [3.87] 1. [.5] 7.1 [18] 1.57 [3.3] 1.3 [.87] 9.3 [] 17.7 [.7] 1.39 [3.] 11. [71].77 [.] 1.55 [3.] 1. [37] [5.5] 1.5 [3.] 17.1 [7] [.3] * SKP1NN is a special version of the SNP1NN. It is designed to accommodate an SE 9T / DP tooth splined shaft for higher torque applications. C Caution The rated and peak pressure mentioned are for pumps with flanged ports only. When threaded ports are required a de-rated performance has to be considered. To verify the compliance of an high pressure application with a threaded ports pump apply to a Turolla OCG representative. L11399 June 1 Rev 5

6 Product Coding Model code B C D E F G H I J K L M N / / Type SEP1NN SNP1NN SKP1NN SNP1IN SKP1IN Medium pressure gear pump Standard gear pump High torque gear pump Standard gear pump, integrated RV High torque gear pump, integrated RV B C Displacement 1, 1.18 cm 3 /rev [.7 in 3 /rev] 1, cm 3 /rev [.9 in 3 /rev],.9 cm 3 /rev [.18 in 3 /rev],. cm 3 /rev [.1 in 3 /rev] 3, 3.1 cm 3 /rev [.19 in 3 /rev] 3,8 3. cm 3 /rev [.3 in 3 /rev],3.19 cm 3 /rev [.5 in 3 /rev], 5.89 cm 3 /rev [.359 in 3 /rev] 7, cm 3 /rev [.3 in 3 /rev] 1 9. cm 3 /rev [.7 in 3 /rev] 1 1. cm 3 /rev [.73 in 3 /rev] Sense of rotation R L Right (Clockwise) Left (Counterclockwise) D Version N Standard gear pump E Mounting flange/drive gear Code Description (Type of flange type of drive gear prefered ports for configuration) SNP1NN SKP1NN SEP1NN SNP1IN Legend: Standard Optional Not vailable 1B European four bolt flange Tapered 1:8 shaft European flanged ports 1D European four bolt flange Splined 15T 1x1 shaft European flanged ports BB European four bolts flange Tapered 1:8 shaft European flanged ports F European four bolts flange Parallel shaft European flanged ports 3C German two bolts PTO flange SD Tang shaft Metrical threaded ports G SE - flange Parallel shaft SE O-Ring boss ports S SE - flange SE spline shaft SE O-Ring boss ports F Rear cover P1 Standard cover for pump 3 Cover for 3 flange I1 Cover for pump with relief valve I3 Cover for 3 flange with relief valve L11399 June 1 Rev

7 Product Coding Model code (continued) B C D E F G H I J K L M N / / G Inlet port/h Outlet port* B1 8x3xM Flanged port with threaded holes in X pattern, B 13x3xM in center of body C1 8xxM5 Flanged port with threaded holes in + pattern C 1xxM5 (European standard ports) C3 13,5x3xM D3 M1x1,5 D5 M18x1,5 Threaded metric port D7 Mx1,5 E UNF E ¾ -1UNF Threaded SE, O-Ring boss port E UNF F ¼ GS Threaded GS (BSPP) port F3 3 8 GS F ½ GS H5 M18x1,5 Threaded metric port ISO 19 H7 Mx1,5 * For the information see Port dimensions, page 1. I Port position and variant body NN Standard gear pump from catalogue J K Sealing N B Screws N B Standard Buna seal Without shaft seal VITON seals Standard screws Galvanized screws+nuts-washers DCROMET/GEOMET screws L Set valve NNN No valve V** Integral RV-Pressure setting. Pump speed for relief valve setting (min -1 [rpm]) M Marking N Standard marking Standard marking + Customer Code Z Without marking N Mark position N Standard marking position Mark on the bottom ref. to drive gear L11399 June 1 Rev 7

8 Determination of Nominal Pump Sizes Determination of nominal pump sizes Use these formulae to determine the nominal pump size for a specific application: Output flow: Based on SI units Vg n η v Q = l/min 1 Based on US units Vg n η v Q = [US gal/min] 31 Input torque: M = Vg p π η m N m M = Vg p π η m [lbf in] Input power: M n Q p P = = kw 955 η t M n Q p P = = [hp] η t Variables: SI units [US units] V g = Displacement per rev. cm 3 /rev [in 3 /rev] p HD = Outlet pressure bar [psi] p ND = Inlet pressure bar [psi] p = p HD p ND bar [psi] n = Speed min -1 (rpm) η v = Volumetric efficiency η m = Mechanical (torque) efficiency η t = Overall efficiency (η v η m ) 8 L11399 June 1 Rev

9 System Requirements Pressure The inlet vacuum must be controlled in order to realize expected pump life and performance. The system design must meet inlet pressure requirements during all modes of operation. Expect lower inlet pressures during cold start. It should improve quickly as the fluid warms. Inlet pressure Maximum continuous vacuum.8 [3.] bar absolute Maximum intermittent vacuum. [17.7] [in. Hg] Maximum pressure 3. [88.5] Peak pressure is the highest intermittent pressure allowed. The relief valve overshoot (reaction time) determines peak pressure. It is assumed to occur for less than 1 ms. The illustration to the right shows peak pressure in relation to rated pressure and reaction time (1 ms maximum). Speed Rated pressure is the average, regularly occurring, operating pressure that should yield satisfactory product life. The maximum machine load demand determines rated pressure. For all systems, the load should move below this pressure. System pressure is the differential between the outlet and inlet ports. It is a dominant operating variable affecting hydraulic unit life. High system pressure, resulting from high load, reduces expected life. System pressure must remain at, or below, rated pressure during normal operation to achieve expected life. Maximum speed is the limit recommended by Turolla OCG for a particular gear pump when operating at rated pressure. It is the highest speed at which normal life can be expected. Time versus pressure Pressure Speed versus pressure P Peak pressure Rated pressure Reaction time (1 ms max) Time Rated pressure The lower limit of operating speed is the minimum speed. It is the lowest speed at which normal life can be expected. The minimum speed increases as operating pressure increases. When operating under higher pressures, a higher minimum speed must be maintained, as illustrated to the right. Pressure P 1 Operating Envelope N 1 N N 3 Speed Where: N 1 = Minimum speed at 1 bar N = Minimum speed at 18 bar N 3 = Minimum speed at rated pressure Max L11399 June 1 Rev 9

10 System Requirements Hydraulic fluids Ratings and data for SNP1NN, SEP1NN and SKP1NN gear pumps are based on operating with premium hydraulic fluids containing oxidation, rust, and foam inhibitors. These fluids must possess good thermal and hydrolytic stability to prevent wear, erosion, and corrosion of internal components. They include: Hydraulic fluids following DIN 515, part (HLP) and part 3 (HVLP) specifications PI CD engine oils conforming to SE J183 MC33F or G automatic transmission fluids Certain agricultural tractor fluids Use only clean fluid in the pump and hydraulic circuit. CCaution Never mix hydraulic fluids. Please see Turolla OCG publication Hydraulic Fluids and Lubricants Technical Information, L111 for more information. Refer to publication Experience with Biodegradable Hydraulic Fluids, L1193 for information relating to biodegradable fluids. Temperature and viscosity Temperature and viscosity requirements must be concurrently satisfied. Use petroleum / mineral-based fluids. High temperature limits apply at the inlet port to the pump. The pump should run at or below the maximum continuous temperature. The peak temperature is based on material properties. Don t exceed it. Cold oil, generally, doesn t affect the durability of pump components. It may affect the ability of oil to flow and transmit power. For this reason, keep the temperature at 1 C [ F] above the pour point of the hydraulic fluid. Minimum (cold start) temperature relates to the physical properties of component materials. Minimum viscosity occurs only during brief occasions of maximum ambient temperature and severe duty cycle operation. You will encounter maximum viscosity only at cold start. During this condition, limit speeds until the system warms up. Size heat exchangers to keep the fluid within these limits. Test regularly to verify that these temperatures and viscosity limits aren t exceeded. For maximum unit efficiency and bearing life, keep the fluid viscosity in the recommended viscosity range. Fluid viscosity Maximum (cold start) 1 [] mm /s Recommended range 1- [-9] [SUS] Minimum 1 [] Temperature Minimum (cold start) - [-] C Maximum continuous 8 [17] [ F] Peak (intermittent) 9 [19] 1 L11399 June 1 Rev

11 System Requirements Filtration Filters Use a filter that conforms to Class /18/13 of ISO (or better). It may be on the pump outlet (pressure filtration), inlet (suction filtration), or reservoir return (return-line filtration). Selecting a filter When selecting a filter, please consider: contaminant ingression rate (determined by factors such as the number of actuators used in the system) generation of contaminants in the system required fluid cleanliness desired maintenance interval filtration requirements of other system components Measure filter efficiency with a Beta ratio (β x ). For: suction filtration, with controlled reservoir ingression, use a β 35-5 = 75 filter return or pressure filtration, use a pressure filtration with an efficiency of β 1 = 75. βx ratio is a measure of filter efficiency defined by ISO 57. It is the ratio of the number of particles greater than a given diameter ( x in microns) upstream of the filter to the number of these particles downstream of the filter. Fluid cleanliness level and β x ratio Fluid cleanliness level (per ISO ) Class /18/13 or better β x ratio (suction filtration) β 35-5 = 75 and β 1 = β x ratio (pressure or return filtration) β 1 = 75 Recommended inlet screen size 1-15 µm [.-.5 in] The filtration requirements for each system are unique. Evaluate filtration system capacity by monitoring and testing prototypes. Reservoir The reservoir provides clean fluid, dissipates heat, removes entrained air, and allows for fluid volume changes associated with fluid expansion and cylinder differential volumes. correctly sized reservoir accommodates maximum volume changes during all system operating modes. It promotes deaeration of the fluid as it passes through, and accommodates a fluid dwell-time between and 18 seconds, allowing entrained air to escape. Minimum reservoir capacity depends on the volume required to cool and hold the oil from all retracted cylinders, allowing for expansion due to temperature changes. fluid volume of 1 to 3 times the pump output flow (per minute) is satisfactory. The minimum reservoir capacity is 15% of the fluid volume. Install the suction line above the bottom of the reservoir to take advantage of gravity separation and prevent large foreign particles from entering the line. Cover the line with a 1-15 micron screen. The pump should be below the lowest expected fluid level. Put the return-line below the lowest expected fluid level to allow discharge into the reservoir for maximum dwell and efficient deaeration. baffle (or baffles) between the return and suction lines promotes deaeration and reduces fluid surges. L11399 June 1 Rev 11

12 System Requirements Line sizing Choose pipe sizes that accommodate minimum fluid velocity to reduce system noise, pressure drops, and overheating. This maximizes system life and performance. Design inlet piping that maintains continuous pump inlet pressure above.8 bar absolute during normal operation. The line velocity should not exceed the values in this table: Maximum line velocity Inlet.5 [8.] Outlet m/s [ft/sec] 5. [1.] Return 3. [9.8] Most systems use hydraulic oil containing 1% dissolved air by volume. Under high inlet vacuum conditions the oil releases bubbles. They collapse when subjected to pressure, resulting in cavitation, causing adjacent metal surfaces to erode. Over-aeration is the result of air leaks on the inlet side of the pump, and flow-line restrictions. These include inadequate pipe sizes, sharp bends, or elbow fittings, causing a reduction of flow line cross sectional area. This problem will not occur if inlet vacuum and rated speed requirements are maintained, and reservoir size and location are adequate. Pump drive Shaft options for Group 1 gear pumps include tapered, tang, splined, or parallel shafts. They are suitable for a wide range of direct and indirect drive applications for radial and thrust loads. Plug-in drives, acceptable only with a splined shaft, can impose severe radial loads when the mating spline is rigidly supported. Increasing spline clearance does not alleviate this condition. Pilot cavity Mating spline Use plug-in drives if the concentricity between the mating spline and pilot diameter is within.1 mm [. in]. Lubricate the drive by flooding it with oil. 3-piece coupling minimizes radial or thrust shaft loads. Ø.1 [.] CCaution In order to avoid spline shaft damages it is recommended to use carburised and hardened steel couplings with 8-8 HR surface hardness. llowable radial shaft loads are a function of the load position, load orientation, and operating pressure of the hydraulic pump. ll external shaft loads have an effect on bearing life, and may affect pump performance. In applications where external shaft loads can t be avoided, minimize the impact on the pump by optimizing the orientation and magnitude of the load. Use a tapered input shaft; don t use splined shafts for belt or gear drive applications. spring-loaded belt tension-device is recommended for belt drive applications to avoid excessive tension. void thrust loads in either direction. Contact Turolla OCG if continuously applied external radial or thrust loads occur. 1 L11399 June 1 Rev

13 System Requirements Pump drive data form Photocopy this page and fax the complete form to your Turolla OCG representative for an assistance in applying pumps with belt or gear drive. This illustration shows a pump with counterclockwise orientation: Optimal radial load position 9 o 9 o α a Inlet port 18 o o o 18 o Inlet port 7 o 7 o P a a dw dw pplication data Item Value Unit Pump displacement cm 3 /rev [in 3 /rev] Rated system pressure Relief valve setting bar psi Pump shaft rotation left right Pump minimum speed min -1 (rpm) Pump maximum speed Drive gear helix angle (gear drive only) degree Belt type (gear drive only) V notch Belt tension (gear drive only) P N lbf ngular orientation of gear or belt to inlet port α degree Pitch diameter of gear or pulley d w mm in Distance from flange to center of gear or pulley a L11399 June 1 Rev 13

14 System Requirements Pump life Pump life is a function of speed, system pressure, and other system parameters (such as fluid quality and cleanliness). ll Turolla OCG gear pumps use hydrodynamic journal bearings that have an oil film maintained between the gear/shaft and bearing surfaces at all times. If the oil film is sufficiently sustained through proper system maintenance and operating within recommended limits, long life can be expected. B 1 life expectancy number is generally associated with rolling element bearings. It does not exist for hydrodynamic bearings. High pressure, resulting from high loads, impacts pump life. When submitting an application for review, provide machine duty cycle data that includes percentages of time at various loads and speeds. We strongly recommend a prototype testing program to verify operating parameters and their impact on life expectancy before finalizing any system design. Sound levels Noise is unwanted sound. Fluid power systems create noise. There are many techniques available to minimize noise. Understanding how it s generated and transmitted is necessary to apply these methods effectively. Noise energy is transmitted as fluid borne noise (pressure ripple) or structure borne noise. Pressure ripple is the result of the number of pumping elements (gear teeth) delivering oil to the outlet and the pump s ability to gradually change the volume of each pumping element from low to high pressure. Pressure ripple is affected by the comressibility of the oil as each pumping element discharges into the outlet of the pump. Pressure pulsations travel along hydraulic lines at the speed of sound (about 1 m/s in oil) until there is a change in the system (as with an elbow fitting). Thus, the pressure pulsation amplitude varies with overall line length and position. Structure borne noise may be transmitted wherever the pump casing is connected to the rest of the system. The way circuit components respond to excitation depends on their size, form, and mounting. Because of this, a system line may actually have a greater noise level than the pump. To minimize noise, use: flexible hoses (if you must use steel plumbing, clamp the lines). flexible (rubber) mounts to minimize other structure borne noise. 1 L11399 June 1 Rev

15 Pump Performance Pump performance graphs The graphs on the next few pages provide typical output flow and input power for Group 1 pumps at various working pressures. Data were taken using ISO VG petroleum /mineral based fluid at 5 C (viscosity at 8 mm /s [cst]). Performance graph for 1. frame size Performance graph for 1.7 frame size [1.] [1.] 5 SEP1NN/1, SNP1NN/1, SKP1NN/1, 5 bar [1.8] [1.] [1.] 7 5 SEP1NN/1,7 SNP1NN/1,7 SKP1NN/1,7 Flow [US gal/min] [.8] [.] [.] [.] Flow l/min bar 5 bar only SNP1NN and SKP1NN 15 bar 1 bar 3 [] Power kw [3] [] 1 [1] Power [HP] Flow [US gal/min] [1.] [1.] [.8] [.] [.] [.] Flow l/min bar 5 bar 5 bar only SNP1NN and SKP1NN 15 bar 1 bar [5] 3 Power kw [] [3] [] 1 [1] Power [HP] 1 3 [] 1 3 [] Speed min -1 (rpm) Speed min -1 (rpm) Performance graph for. frame size Flow [US gal/min] [.] [.] [1.8] [1.] [1.] [1.] [1.] [.8] [.] [.] [.] Flow l/min SEP1NN/, SNP1NN/, SKP1NN/, 5 bar 15 bar 1 bar 5 bar 7 bar 1 3 Speed min -1 (rpm) only SNP1NN and SKP1NN [8] 5 [] [5] 3 1 Power kw [] [3] [] [1] Power [HP] Flow [US gal/min] Performance graph for. frame size [.8] [.] [.] [.] [.] [1.8] [1.] [1.] [1.] [1.] [.8] [.] [.] [.] Flow l/min SEP1NN/, SNP1NN/, SKP1NN/, 7 bar 5 bar 5 bar 15 bar 1 bar 1 3 Speed min -1 (rpm) only SNP1NN and SKP1NN Power kw [8] [] [5] [] [3] [] [1] Power [HP] L11399 June 1 Rev 15

16 Pump Performance Pump performance graphs (continued) Performance graph for 3. frame size Performance graph for 3.8 frame size Flow [US gal/min] [.8] [.] [.] [.] [.] [1.8] [1.] [1.] [1.] [1.] [.8] [.] [.] [.] Flow l/min SEP1NN/3, SNP1NN/3, SKP1NN/3, 7 bar 5 bar 5 bar 15 bar 1 bar only SNP1NN and SKP1NN Speed min -1 (rpm) Power kw [9] [8] [7] [] [5] [] [3] [] [1] Power [HP] Flow [US gal/min] [3.] 1 [3.] [.8] 11 [.] 1 [.] 9 [.] [.] 8 [1.8] [1.] [1.] [1.] [1.] [.8] [.] [.] [.] Flow l/min SEP1NN/3,8 SNP1NN/3,8 SKP1NN/3,8 7 bar 5 bar 5 bar Speed min -1 (rpm) only SNP1NN and SKP1NN 15 bar 1 bar Power kw [1] [9] [8] [7] [] [5] 3 [] [3] [] 1 [1] Power [HP] Performance graph for.3 frame size 13 Performance graph for. frame size [3.] [3.] [3.] [.8] [.] SEP1NN/,3 SNP1NN/,3 SKP1NN/,3 [.] [.] SEP1NN/, SNP1NN/, SKP1NN/, [.] 8 [3.] 1 Flow [US gal/min] [.] [.] [1.8] [1.] [1.] [1.] [1.] [.8] [.] Flow l/min bar 5 bar 5 bar 15 bar 1 bar only SNP1NN and SKP1NN 1 3 Speed min -1 (rpm) Power kw [1] [9] [8] [7] [] [5] [] [3] [] [1] [] Power [HP] Flow [US gal/min] [3.] [.8] [.] [.] [1.] [1.] [.8] Flow l/min bar 17-3 bar 5 bar 17 bar only SKP1NN 15 bar 1 bar 1 3 Speed min -1 (rpm) 1 [1] 8 [1] Power kw [8] [] [] [] [] Power [HP] 1 L11399 June 1 Rev

17 Pump Performance Pump performance graphs (continued) Performance graph for 7.8 frame size Flow [US gal/min] [.] [5.] [5.] [.8] [.] [.] [3.] [3.] [.8] [.] [.] [1.] [1.] [.8] [.] Flow l/min SEP1NN/7,8 SNP1NN/7,8 SKP1NN/7,8 bar 7 bar only SKP1NN 15 bar 1 bar 15- bar Speed min (rpm) Power kw [1] [1] [1] [8] [] [] [] [] Power [HP] SKP1NN/1 pump performance graph SKP1NN/1 pump performance graph Flow [US gal/min] [7.] [7.] [.8] [.] [.] [5.] [5.] [.8] [.] [.] [3.] [3.] [.8] [.] [.] [1.] [1.] [.8] [.] Flow l/min SKP1NN/1 7 bar 1 bar 1 bar 1 bar 1 Speed min -1 (rpm) 1 8 Power kw [1] [1] [1] [8] [] [] [] [] Power [HP] Flow [US gal/min] [1.] [9.] 35 [8.] 3 [.] 5 [5.3] [.] [.] Flow l/min 15 1 [1.] 5 [] SKP1NN/1 7 bar 13 bar 13 bar 1 bar 5 bar 1 Speed min -1 (rpm) 15 [] 1 5 Power kw [15] [1] [5] [] Power [HP] L11399 June 1 Rev 17

18 Product Options Flange, shaft and port configurations Flange, shaft and port configurations for SEP1NN and SNP1NN Code Flange Shaft Port 1B 5. mm [1. in] pilot Ø European -bolt 1:8 tapered European flanged in + pattern 1D 5. mm [1. in] pilot Ø European -bolt 15-teeth splined m =.75 α = 3 o European flanged in + pattern 3C Turolla OCG tang Turolla OCG tang Threaded metric port Flange, shaft and port configurations for SKP1NN Code Flange Shaft Port BB 3 mm [1.181] pilot Ø European -bolt 1:8 tapered European flanged in + pattern F 3 mm [1.181] pilot Ø European -bolt 1 mm [.7 in] parallel European flanged in + pattern G SE - -bolt 1.7 mm [.5 in] parallel Threaded SE O-Ring boss S SE - -bolt 9-teeth splined SE spline J 98-9T-/DP Threaded SE O-Ring boss 18 L11399 June 1 Rev

19 Product Options Mounting flanges Turolla OCG offers many types of industry standard mounting flanges. This table shows order codes for each available mounting flange and its intended use: Flange availability B C D E F G H I J K L M N / / Flange Code Description 1 European 5. mm -bolt European 3 mm -bolt 3 Turolla OCG standard Tang drive SE - Shaft options Direction is viewed facing the shaft. Group 1 pumps are available with a variety of tang, splined, parallel, and tapered shaft ends. Not all shaft styles are available with all flange styles. Shaft availability and nominal torque capability B C D E F G H I J K L M N / / Shaft Mounting flange code with maximum torque in Nm [lb in] Code Description 1 3 B Taper 1:8 5 [1] BB Taper 1:8 5 [] D Spline T-15, m=.75, alfa=3 o 35 [31] S SE spline J 98-9T-/DP 3 [31] F Parallel 1 mm [.7 in] [1] G Parallel 1.7 mm [.5 in] 3 [83] C Turolla OCG Tang 1 [1] Turolla OCG recommends mating splines conform to SE J98 or DIN 58. Turolla OCG external SE splines have a flat root side fit with circular tooth thickness reduced by.17 mm [.5 in] in respect to class 1 fit. Dimensions are modified to assure a clearance fit with the mating spline. CCaution Shaft torque capability may limit allowable pressure. Torque ratings assume no external radial loading. pplied torque must not exceed these limits, regardless of stated pressure parameters. Maximum torque ratings are based on shaft torsional fatigue strength. L11399 June 1 Rev 19

20 Product Options Inlet/Outlet port configurations Various port configurations are available on Group 1 pumps. They include: European standard flanged ports German standard flanged ports Gas threaded ports (BSPP) O-Ring boss (following SE J19/1 [ISO 119-1] UNF threads, standard) table of dimensions is on the next page. G Inlet port configuration codes and H Outlet port configuration codes B C D E F G H I J K L M N / / B1 8x3xM Flanged port with threaded holes in X pattern, B 13x3xM in center of body C1 8xxM5 Flanged port with threaded holes in + pattern C 1xxM5 (European standard ports) C3 13,5x3xM D3 M1x1,5 D5 M18x1,5 Threaded metric port D7 Mx1,5 E UNF E ¾ -1UNF Threaded SE, O-Ring boss port E UNF F ¼ GS Threaded GS (BSPP) port F3 3 8 GS F ½ GS H5 M18x1,5 Threaded metric port ISO 19 H7 Mx1,5 L11399 June 1 Rev

21 Product Options Ports vailable ports B C D E F 5 o c ( holes min. full thd. 1 [.39] deep) i ( holes min. full thd. 1 [.39] deep) a b g h d e f Dimensions of Group 1 pump ports Port type B C D E F Port dimension a b c g h i d e f Inlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 ¾ 1UNF B 3/ 8 Gas (BSPP) 1, Outlet 8 [.315] 3 [1.181] M 1 [.] [1.] M5 M1x1.5 9/ 1 18UNF B 3/ 8 Gas (BSPP) Type (displacement) 1,7,, 3, 3,8,3, 7,8 1 1 Inlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 ¾ 1UNF B 3/ 8 Gas (BSPP) Outlet 8 [.315] 3 [1.181] M 1 [.] [1.] M5 M1x1.5 9/ 1 18UNF B 3/ 8 Gas (BSPP) Inlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 ¾ 1UNF B 3/ 8 Gas (BSPP) Outlet 8 [.315] 3 [1.181] M 1 [.] [1.] M5 M1x1.5 9/ 1 18UNF B 3/ 8 Gas (BSPP) Inlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 ¾ 1UNF B 3/ 8 Gas (BSPP) Outlet 8 [.315] 3 [1.181] M 1 [.] [1.] M5 M1x1.5 9/ 1 18UNF B 3/ 8 Gas (BSPP) Inlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 ¾ 1UNF B 3/ 8 Gas (BSPP) Outlet 8 [.315] 3 [1.181] M 1 [.] [1.] M5 M1x1.5 9/ 1 18UNF B 3/ 8 Gas (BSPP) Inlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 ¾ 1UNF B 3/ 8 Gas (BSPP) Outlet 8 [.315] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 9/ 1 18UNF B 3/ 8 Gas (BSPP) Inlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 ¾ 1UNF B 3/ 8 Gas (BSPP) Outlet 8 [.315] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 9/ 1 18UNF B 3/ 8 Gas (BSPP) Inlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 ¾ 1UNF B 3/ 8 Gas (BSPP) Outlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 9/ 1 18UNF B 3/ 8 Gas (BSPP) Inlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 ¾ 1UNF B 3/ 8 Gas (BSPP) Outlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 9/ 1 18UNF B 3/ 8 Gas (BSPP) Inlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 ¾ 1UNF B 3/ 8 Gas (BSPP) Outlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 9/ 1 18UNF B 3/ 8 Gas (BSPP) Inlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 ¾ 1UNF B 3/ 8 Gas (BSPP) Outlet 13 [.51] 3 [1.181] M 1 [.] [1.] M5 M18x1.5 9/ 1 18UNF B 3/ 8 Gas (BSPP) L11399 June 1 Rev 1

22 Product Options Integral relief valve SNP1IN Turolla OCG offers an optional integral relief valve integrated in the rear cover. It is drained internally and directs all flow from the pump outlet to the inlet when the outlet pressure reaches the valve setting. CCaution When the relief valve is operating in bypass condition, rapid heat generation occurs. If this bypass condition continues, the pump prematurely fails. The reason for this is that it is a rule, not an exception. Valve performance graph psi bar With mineral cst Minimum valve setting l/min US gal/min Integral relief valve covers SNP1IN Dimensions B max 7.5 [.933] max.. [.1] max. V +1. [+.39] -.5 [-.] For configuration 3 only For configuration (SE -) dimension B and V have to be increased.5 mm [.177 in]. Integral relief valve and covers dimensions Type (displacement) Dimensions mm [in] B V 1, 1,7,, 3, 3,8,3, 7, [3.7] 85. [3.3] 97 [3.819] 8.5 [3.] 99 [3.989] 88.5 [3.8] 11 [3.97] 9.5 [3.53] 13 [.55] 9.5 [3.] 15 [.13] 9.5 [3.7] 17 [.13] 9.5 [3.799] [.8] 13. [.55] 1 [.7] 19.5 [.311] 19 [5.79] [.5] 137 [5.39] 1.5 [.98] L11399 June 1 Rev

23 Product Options Variant codes for ordering integral relief valves These tables detail the various codes for ordering integral relief valves: B C D E F G H I J K L M N S N P 1 I N / / V Integral relief valve schematic Pump speed for RV setting Code min -1 (rpm) Not defined C 5 E 1 F 15 G 15 K I 5 L 5 M 8 N 3 O 35 Valve schematic o Pressure setting Code bar [psi] No setting B No valve C 18 [1] D 5 [33] E 3 [35] F 35 [58] G [58] K 5 [75] L [87] M 7 [115] N 8 [11] O 9 [135] P 1 [15] Q 11 [1595] R 1 [17] S 13 [1885] T 1 [3] U 1 [3] V 17 [5] W 18 [11] X 1 [35] Y [38] Z 5 [3] i i = inlet o = outlet L11399 June 1 Rev 3

24 Dimensions SNP1NN 1B and 1D This drawing shows the standard porting for 1B and 1D. vailable in Series SNP1NN only. 1B 1D mm [in] 9 [1.1] B max Recommended tightening torque: 7-1 Nm Ø 5. [1. ] X 1:8 1.8 ±.5 [.5 ±.] Ø 9.8 [.387] Cone reference diameter 1. [.88] 1. [.583] M7-g. [.15] Pilot width (min full thd 1 [.39] deep) - 5. [.5] Distance from front flange to cone reference diameter 1.5 [.5] E/e [ ] [ ] ±.5 [.] D/d C/c ±. [.8] 88.1 [3.7] max (53.8 [.1] max) (3.3 [1.35] max) (71.9 [.83] 5.7 [1.8]. [1.3] Ø [ ] Ø.75 [.95] X 8 ±.5 [.8 ±.1] body width 5. [.] 9. [.73] max 7.5 [.93] max 1.5 [.8] 1 [.551].5 [.177] Distance from front flange to shoulder Ø [.9 -. ] Spline: Z=15 M=.75 alfa=3 Circular tooth thickness: [. -.] Internal spline dia: [ ] SNP1NN 1B and 1D dimensions Frame size 1, 1,7,, 3, 3,8,3, 7,8 Dimension Inlet/Outlet B [1.8] 79.5 [3.13] 38.5 [1.51] 81. [3.189] 39.5 [1.555] 83. [3.8].5 [1.3] 85. [3.3] 1.5 [1.3] 87. [3.5] C/c 1 [.7] D/d [1.] E/e M5.5 [1.73] 89. [3.5] 3.5 [1.713] 91. [3.583].75 [1.81] 97.5 [3.839] 5. [1.99] 1. [.9] Model code examples and maximum shaft torque Flange/drive gear Model code example Maximum shaft torque 1B SNP1NN/3,8RN1BP1CCNNNN/NNNNN 5 N m [1 lb in] 1D SNP1NN/,LN1DP1CCNNNN/NNNNN 35 N m [31 lb in] For further details on ordering, see Model Code, pages -7. L11399 June 1 Rev

25 Dimensions SKP1NN BB and F This drawing shows the standard porting for BB and F. vailable in Series SKP1NN only. mm [in] 35 [1.378] BB B max F Recommended tightening torque: 1-1 Nm X 15.5 [.1] [.] 1: 8 8. [.315] Distance from front flange to cone reference diameter 7. [.7] Pilot width 1.5 [.5] ±.5 [±.] (3.1 [1.] max).5 [.95] 8. ±.5 [.77 ±.1] body width 31.5 [1.] 8.3 [.37] Distance from front flange to shoulder B Recommended tightening torque: 1-1 Nm 11.7 [.1] [ ] 1.8 ±.5 [.5 ±.] Ø13.95 [.59] Cone reference diameter M1x1-g - E/e [ ] C/c D/d 88. [3.7] max ±. [±.8] (min full thd 1 mm [.39] deep) (5.1 [.9] max) (73. [.87]) 8.5 [1.99] Ø [.-.95] X 5. [.5] 7.9 [.791] max 7.5 [.933] max B-B B [ ] M1 x 1-g [ ] [ ] Ø.75 [.95] [ ] SKP1NN BB and F dimensions Frame size 1, 1,7,, 3, 3,8,3, 7,8 1 1 Dimension Inlet/Outlet B [1.8] 79.5 [3.13] 38.5 [1.51] 81. [3.189] 39.5 [1.555] 83. [3.8].5 [1.3] 85. [3.3] 1.5 [1.3] 87. [3.5].5 [1.73] 89. [3.5] C/c 1 [.7] D/d [1.] E/e M5 3.5 [1.713] 91. [3.583].75 [1.81] 97.5 [3.839] 5. [1.99] 1. [.9] 5.5 [.1] 113. [.9] 58.5 [.33] 11. [.7] Model code examples and maximum shaft torque Flange/drive gear Model code example Maximum shaft torque BB SKP1NN/,RNBBP1CCNNNN/NNNNN 5 N m [ lb in] F SKP1NN/,LNFP1CCNNNN/NNNNN N m [1 lb in] For further details on ordering, see Model Code, pages -7. L11399 June 1 Rev 5

26 Dimensions SNP1NN, SEP1NN 3C This drawing shows the standard porting for 3C. 3C mm [in] B ±1. [±.39]. [.8] 8.5 [.335] [1. -.] X 1.8 ±.5 [.5 ±.] 7. [.7] Pilot width [ ] [ ] ±.5 [±.].8 ±.1 [.189 ±.] 8.5 [.335] max. [1.575] 9.5 [1.17] 1.35 [.7] 3. ±.5 [.8 ±.1] body width C/c.5 [.98] Ø. [.1] X Ø [ ]. [1.575] 7.5 [.933] max OR 8.3 x [.79].75 [.89] min SNP1NN, SEP1NN 3C dimensions Frame size 1, 1,7,, 3, 3,8,3, 7,8 Dimension B [1.8] 7 [.75] 38.5 [1.51] 71.5 [.815] 39.5 [1.555] 73.5 [.89].5 [1.3] 75.5 [.97] 1.5 [1.3] 77.5 [3.51].5 [1.73] 79.5 [3.13] 3.5 [1.713] 81.5 [3.9].75 [1.81] 88. [3.5] 5 [1.99] 9.5 [3.7] Inlet C M18 x 1.5 THD 1 [.7] deep Outlet c M1 x 1.5, THD 1 [.7] deep M18 x 1.5, THD 1 [.7] deep Model code examples and maximum shaft torque Flange/drive gear Model code example Maximum shaft torque 3C SNP1NN/1,7RN3C3D5D3NNNN/NNNNN SEP1NN/,LN3C3D5D3NNNN/NNNNN 1 N m [1 lb in] For further details on ordering, see Model Code, pages -7. L11399 June 1 Rev

27 Dimensions SKP1NN G and S This drawing shows the standard porting for G and S. vailable in Series SKP1NN only. mm [in] G S 7. [1.3] B max 19.1 [.75] 7.9 [.311] Distance from front flange to shoulder. [.3] Pilot width 8. [.315] ±.5 [.] 13. [.71] max 8.55 [3.58] R 3.1 [1.] max 7.9 [.311] 7. [1.3] Distance from front flange to shoulder 19.1 [.75] [. -. ] 1.8 ±.5 [.5 ±.] [ ] - C/c [ ] Straight thread O-Ring boss 8. [3.157] max [.-.5] 8. ±.5 [.77 ±.1] body width Ø.75 [.3] X 7.5 [.933] max 15. [.1] [ ] Splined: SE J98-9T-/DP Flat root side fit Circular tooth thickness:.17mm [.5] less than class 1 fit [ ] SKP1NN G and S dimensions Frame size 1, 1,7,, 3, 3,8,3, 7,8 1 1 Dimension B.5 [1.3] 8 [3.37] 3 [1.93] 85.5 [3.3] [1.73] 87.5 [3.5] 5. [1.77] 89.5 [3.5]. [1.811] 91.5 [3.] 7 [1.85] 93.5 [3.81] 8 [1.89] 95.5 [3.7] Inlet C ¾ 1UNF B, THD 1.3 [.53] deep Outlet c 9/ 1 18UNF B, THD 1.7 [.5] deep 51.5 [.18] 1 [.1] 5.5 [.1] 18.5 [.7] 59 [.33] [.] 3.5 [.5] 15.5 [.91] Model code examples and maximum shaft torque Flange/drive gear Model code example Maximum shaft torque G SKP1NN/3,RNGP1EE3NNNN/NNNNN 3 N m [83 lb in] S SKP1NN/1LNSP1EE3NNNN/NNNNN 3 N m [31 lb in] For further details on ordering, see Model Code, pages -7. L11399 June 1 Rev 7

28 OpenCircuitGear Our Products Turolla OpenCircuitGear luminum Gear Pumps luminum Gear Motors Cast Iron Gear Pumps Cast Iron Gear Motors Fan Drive Gear Motors luminum Fan Drive Gear Motors Cast Iron Turolla OCG, with more than years of experience in designing and manufacturing gear pumps, gear motors and fan drive motors of superior quality, is the ideal partner ensuring robustness and reliability to your work functions. We are fast and responsive - the first to specify a customer product, the most experienced in providing technical knowledge and support for fan drive solutions. We offer a lean value chain to our partners and customers and the shortest lead time in the market. Turolla OCG is member of the Sauer-Danfoss Group. Local address: Turolla OpenCircuitGear Via Villanova 8 5 Villanova di Castenaso Bologna, Italy Phone: Fax: Turolla OpenCircuitGear Kukučínova Považská Bystrica, Slovakia Phone: Fax: Turolla OpenCircuitGear 8 East 13th Street mes, I 51 US Phone: Fax: L11399 June 1 Rev

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