Group 2 Gear Pumps. Technical Information. OpenCircuitGear MEMBER OF THE SAUER-DANFOSS GROUP

Transcription

1 Group 2 Gear Pumps OpenCircuitGear Technical Information

2 General Information History of revisions Table of revisions Date Page Changed Rev. 28, June 21 - First edition A 24, Feb 211 1, 2, 12, 44 Covers to blue color, TurollaOCG brand name, Biofluids deleted. B Reference documents Literature reference for gear products Title Type Order number General Aluminum Gear Pumps and Motors L Group 1 Gear Pumps L Group 3 Gear Pumps L Group 1, 2 and 3 Gear Motors L11682 Hydraulic Fluids and Lubricants L L116341

3 General Information Technical Data Product Coding Determination of Nominal Pump Sizes System Requirements Pump Performance Product Options Dimensions Overview... 4 Pump design... 5 Features... 5 Pump displacements... 5 Group 2 gear pumps` attributes... 5 Gear pump in circuit... 6 Technical data... 7 Model code... 8 Based on SI units/based on US units...1 Pressure...11 Speed...11 Hydraulic fluids...12 Temperature and viscosity...12 Filtration...13 Filters...13 Selecting a filter...13 Reservoir...14 Line sizing...14 Pump drive...15 Pump drive data form...16 Pump life...17 Sound levels...18 Performance graphs...19 Flange, shaft and ports configurations...22 Mounting flanges...24 Shaft options...24 Inlet/Outlet port configurations Integral relief valve schematics...26 Variant codes for ordering integral relief valves Outrigger bearing assembly...29 Available configurations...29 Auxiliary mounting pads...32 Pump ports L

4 General Information Overview TurollaOCG aluminum gear pumps are ideal for a wide range of applications for: Small vehicles, such as aerial lifts, greens and fairway mowers and electric forklifts. pressure balanced design for high efficiency, and extruded aluminum bodies for high strength. Medium and large off-highway vehicles, like tractors, backhoe loaders, dumpers, Many combinations of the pumps mentioned are available as multiple units made to fit any need. TurollaOCG provides standard pumps for use in industrial applications, including power packs. Group 2 gear pumps representatives: SKP2NN 6SA SNP2NN 2AA SNP2NN 4DA SNP2NN 3CA 4 L116341

5 General Information Pump design TurollaOCG high performance gear pumps are fixed displacement pumps which flange, shaft seal and inner/outer seals, as shown in the image below. The pressure balanced design of the pumps provides high efficiency for the entire series. SNP2NN 6SA cut-away tooth splined shaft for higher torque applications. Features Group 2 gear pumps` attributes Wide range of displacements from 3.9 to 25.2 cm3/rev [from.24 to 1.54 in3/rev] Continuous pressure rating up to 25 bar [3625 psi] Speeds up to 4 min-1 (rpm) Compact, lightweight Quiet operation Available with integral relief valve Pump displacements Quick reference chart for pump displacements vs. rated pressure Rated pressure (bar) 25{ SNP2NN SKP2NN Displacement (cm 3 /rev) L

6 General Information Gear pump in circuit through a system pressure control valve. The system pressure control valve regulates the gear motor is then returned to the reservoir through a heat exchanger, which is equipped with a bypass check valve. Oil in this circuit is cleaned by a return line filter placed between the heat exchanger and the reservoir. A suction screen in the reservoir covers the inlet line. Hydraulic schematic example RESERVOIR BYPASS CHECK SUCTION SCREEN HEAT EXCHANGER FILTER WAX CAPSULE THERMAL SENSOR SYSTEM PRESSURE CONTROL VALVE GEAR PUMP GEAR MOTOR PUMP INLET PUMP OUTPUT CONTROLLED FLOW RETURN FLOW PILOT FLOW 6 L116341

7 Technical Data Technical data Technical data Frame size 4, 6, 8, Displacement SNP2NN Peak pressure Rated pressure cm 3 /rev [in 3 /rev] bar [psi] 3.9 [.24] 28 [46] 25 [3625] 6. [.37] 28 [46] 25 [3625] 8.4 [.51] 28 [46] 25 [3625] 1.8 [.66] 28 [46] 25 [3625] 14.4 [.88] 28 [46] 25 [3625] 16.8 [1.2] 28 [46] 25 [3625] 19.2 [1.17] 23 [3335] 21 [345] 22.8 [1.39] 2 [29] 18 [261] 25.2 [1.54] 175 [2638] 16 [232] Minimum speed at -1 bar Minimum speed at 1-18 bar min -1 (rpm) Min. speed at 18 bar to rated pressure Maximum speed SKP2NN Peak pressure Rated pressure bar [psi] 28 [46] 25 [3625] 28 [46] 25 [3625] 28 [46] 25 [3625] 28 [46] 25 [3625] 28 [46] 25 [3625] 28 [46] 25 [3625] 26 [377] 24 [348] 23 [3335] 21 [345] 2 [29] 19 [2755] Minimum speed at -1 bar Minimum speed at 1-18 bar min -1 (rpm) Min. speed at 18 bar to rated pressure Maximum speed Both (SNP2NN, SKP2NN) Weight Moment of inertia of rotating components Theoretical flow at maximum speed kg [lb] x [x ] l/min [US gal/min] 2.3 [5.1] 21.3 [55] 15.6 [4.1] 2.4 [5.3] 26.5 [629] 24. [6.3] 2.5 [5.5] 32.4 [769] 33.6 [8.9] 2.7 [5.8] 38.4 [911] 43.2 [11.4] 2.9 [6.3] 47.3 [1122] 5.4 [13.3] 3. [6.5] 53.3 [1265] 5.4 [13.3] 3.1 [6.7] 59.2 [145] 57.6 [15.2] 3.2 [7.] 68.1 [1616] 68.4 [18.] 3.3 [7.3] 74.1 [1758] 75.6 [2.] 2 2 CCaution L

8 Model code A B C D E F G H I J K L M N / / A Type SNP2NN SNP2IN SNP2EN SNC2NN SKP2NN SKP2IN SKP2EN SKC2NN SHP2NN Standard gear pump Standard gear pump, internal drain, integrated relief valve Standard gear pump, external drain, integrated relief valve Standard gear pump, inlet/outlet in the cover High torque gear pump High torque gear pump, internal drain, integrated relief valve High torque gear pump, external drain, integrated relief valve High torque gear pump, inlet/outlet in the cover High pressure gear pump B Displacement 4, 3.9 cm 3 /rev [.24 in 3 /rev] 6, 6. cm 3 /rev [.37 in 3 /rev] 8, 8.4 cm 3 /rev [.51 in 3 /rev] cm 3 /rev [.66 in 3 /rev] cm 3 /rev [.88 in 3 /rev] cm 3 /rev [1.2 in 3 /rev] cm 3 /rev [1.17 in 3 /rev] cm 3 /rev [1.39 in 3 /rev] cm 3 /rev [1.54 in 3 /rev] C D Direction of rotation R Right (Clockwise) L Left (Counterclockwise) Version N Standard gear pump 2 Standard gear pump, big shaft Legend: Standard Optional Not Available E Code Description SNP2NN SNP2IN SNP2EN SNC2NN SKP2NN SKP2IN SKP2EN SKC2NN SHP2NN 1FA 1BA 1DA 2AA 2DB 3CA German flanged ports 91DB 9ADB 94DB 9JDB 4AA 4DB 5AA 5DB 6GA 6SA 6SB 9BJ pattern ports A9BJ pattern ports 8 L116341

9 Model code (continued) A B C D E F G H I J K L M N / F G H P1 P3 C1 C6 E1 E3 E6 I1 I3 Rear cover Standard cover for pump Cover for 3 flange only Front BSP ports: Inlet ¾ GAS Outlet ½ GAS 1/16 Outlet 7/8 Cover for RV external drain 3/8 GAS Cover for RV ext. drain 3/8 GAS holes M5 Cover for RV internal drain Cover for RV int. drain for 3 flange only Inlet port Outlet port B5 15x35xM6 B6 15x4xM6 Flanged port 4 threaded holes in pattern, B7 2x4xM6 in center or off-set of BB 27x55xM8 body C2 12x26xM5 C3 13,5x3xM6 Flanged port 4 threaded holes in + pattern C5 13,5x4xM8 C7 2x4xM8 ports) C8 23,5x4xM8 D4 M16x1,5 D5 M18x1,5 D7 M22x1,5 Threaded metric port D9 M26x1,5 E E4 E5 7 8 boss port E6 1 1/16 E8 1 5/16 F3 3 8 GAS F4 ½ GAS Threaded GAS (BSPP) F5 ¾ GAS port F6 1 GAS H5 M18x1,5 H7 M22x1,5 Threaded metric port H8 M27x2 ISO 6149 H9 M33x2 I J K L M N NN YY ZZ N A B L N A B NNN V** N A Z N A Port position and variant body Standard from catalogue center of body as per catalogue Port Bx-Bx in center of body Sealing Standard Buna seal Without shaft seal Std. shaft seal turned over assembled Screws Standard screws Galvanized screws + nut-washers Set valve Integral relief valve pressure setting Marking Standard marking Standard marking + Customer code Without marking Mark position Standard marking position Mark on the bottom ref. to drive gear L

10 Determination of Nominal Pump Sizes Determination of nominal pump sizes Use these formulae to determine the nominal pump size for a specific application. Based on SI units Based on US units v Q = l/min 1 v Q = [US gal/min] 231 Input torque p m p m Input power p P = = kw t p P = = [hp] t Variables: SI units [US units] V g 3 /rev [in 3 /rev] p = Outlet pressure bar [psi] p = Inlet pressure bar [psi] p = p bar [psi] n = Speed min -1 (rpm) v = Volumetric efficiency m = Mechanical (torque) efficiency t = Overall efficiency ( v m ) L116341

11 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 inlet pressures during cold start. It should improve quickly as the fluid warms. 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). 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. Inlet pressure Max. continuous vacuum.8 [23.6] bar abs. Max. intermittent vacuum.6 [17.7] [in. Hg] Max. pressure 3. [88.5] Time versus pressure Pressure Peak pressure Rated pressure Reaction time (1 ms max) Time System pressure is the differential of pressure 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. Speed Maximum speed is the limit recommended by TurollaOCG for a particular gear pump when operating at rated pressure. It is the highest speed at which normal life can be expected. Speed versus pressure P 2 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 2 N 3 Speed Where: Where: 1 = Minimum speed at 1 bar 2 = Minimum speed at 18 bar 3 = Minimum speed at rated pressure Max L116341

12 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: M2C33F or G automatic transmission fluids Certain agricultural tractor fluids Use only clean fluid in the pump and hydraulic circuit. CCaution Please see TurollaOCG publication Hydraulic Fluids and Lubricants Technical Information, L for more information. 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 ability of oil to flow and transmit power. For this reason, keep the temperature at 16 C [6 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 heat exchangers to keep the fluid within these limits. Test regularly to verify that these bearing life, keep the fluid viscosity in the recommended viscosity range. Fluid viscosity Maximum (cold start) 1 [46] mm 2 /s Recommended range 12-6 [66-29] [SUS] Minimum 1 [6] Temperature Minimum (cold start) -2 [-4] C Maximum continuous 8 [176] [ F] Peak (intermittent) 9 [194] L116341

13 Filtration Filters Use a filter that conforms to Class 22/18/13 of ISO 446 (or better). It may be on the pump outlet (pressure filtration), inlet (suction filtration), or reservoir return (return-line filtration). 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 Filtration requirements of other system components Measure filter efficiency with a Beta ratio ( x ). For: Suction filtration, with controlled reservoir ingression, use a = 75 filter Return or pressure filtration, use a pressure filtration with an efficiency of 1 = 75. x ratio is a measure of filter efficiency defined by ISO 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 x ratio Fluid cleanliness level (per ISO 446) Class 22/18/13 or better x ratio (suction filtration) = 75 and 1 = 2 x ratio (pressure or return filtration) 1 = 75 Recommended inlet screen size m [.4-.5 in] capacity by monitoring and testing prototypes. L116341

14 Reservoir The reservoir provides clean fluid, dissipates heat, removes entrained air, and allows fluid volume changes associated with fluid expansion and cylinder differential volumes. A correctly sized reservoir accommodates maximum volume changes during all system operating modes. It promotes de-aeration of the fluid as it passes through, and accommodates a fluid dwell-time between 6 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. A fluid volume of 1 to 3 times the pump output flow (per minute) is satisfactory. The minimum reservoir capacity is 125% 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 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. A baffle (or baffles) between the return and suction lines promotes deaeration and reduces fluid surges. Line sizing Choose pipe sizes that accommodate minimum fluid velocity to reduce system noise, pressure drops, and overheating. This maximizes system life and performance. absolute during normal operation. The line velocity should not exceed the values in this table: Maximum line velocity Inlet 2.5 [8.2] Outlet m/s [ft/sec] 5. [16.4] 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. L116341

15 Pump drive Shaft options for Group 2 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 [.4 in]. Lubricate the drive by flooding it with oil. A 3-piece coupling minimizes radial or thrust shaft loads. Ø.1 [.4] CCaution Allowable radial shaft loads are a function of the load position, load orientation, and operating pressure of the hydraulic pump. All external shaft loads have an effect on bearing life, and may affect pump performance. pump by optimizing the orientation and magnitude of the load. Use a tapered input tension-device is recommended for belt drive applications to avoid excessive tension. Avoid thrust loads in either direction. Contact TurollaOCG if continuously applied external radial or thrust loads occur. L116341

16 Pump drive data form Photocopy this page and fax the complete form to your TurollaOCG 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 a Inlet port 18 o o o 18 o Inlet port 27 o 27 o P a a dw dw Application 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 Angular orientation of gear or belt to inlet port degree Pitch diameter of gear or pulley d w mm in Distance from flange to center of gear or pulley a L116341

17 Pump life Pump life is a function of speed, system pressure, and other system parameters (such as fluid quality and cleanliness). All TurollaOCG 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. 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. L116341

18 Sound levels Fluid power systems are inherent generators of noise. As with many high power density devices, noise is an unwanted side affect. However, there are many techniques available to minimize noise from fluid power systems. To apply these methods effectively, it is necessary to understand how the noise is generated and how it reaches the listener. The noise energy can be transmitted away from its source as either fluid borne noise (pressure ripple) or as structure borne noise. Pressure ripple is the result of the number of pumping elements (gear teeth) delivering element from low to high pressure. In addition, the pressure ripple is affected by the compressibility of the oil as each pumping element discharges into the outlet of the pump. Pressure pulsations will travel along the hydraulic lines at the speed of sound (about 14 m/s in oil) until affected by a change in the system such as 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 manner in which one circuit component responds to excitation depends on its size, form, and manner in which it is mounted or supported. Because of this excitation, a system line may actually have a greater noise level than the pump. To reduce this excitation, use flexible hoses in place of steel plumbing. If steel plumbing must be used, clamping of lines is recommended. To minimize other structure borne noise, use flexible (rubber) mounts. The accompanying graph from the unit in a semi-anechoic chamber. Anechoic levels can be estimated by subtracting 3 db (A) from these values. Sound levels graph 8 Sound pressure level (db(a) at 1m [3.3ft]) rpm, 175 bar [2538 psi] 3 rpm, 175 bar [2538 psi] 18 rpm, 25 bar [3626 psi] 3 rpm, 25 bar [3626 psi] Displacement (cc/rev) L116341

19 Pump Performance Performance graphs The graphs on the next pages provide typical output flow and input power for Group 2 based fluid at 5 C (viscosity at 28 mm 2 /s [cst]). Performance graph for 4, frame size Flow l/min [US gal/min] [4.] [3.5] [3.] 1 [2.5] [2.] [1.5] [1.] [.5] SNP2NN, SKP2NN/4, 7 bar 25 bar 25 bar 15 bar 1 bar Speed min -1 (rpm) 8 [1] Power kw [HP] [12] [8] [6] [4] [2] Flow l/min [US gal/min] Performance graph for 6, frame size 26 [6.5] 24 [6.] 22 [5.5] 2 [5.] 18 [4.5] 16 [4.] 14 [3.5] 12 [3.] [2.5] 1 [2.] [1.5] [1.] [.5] SNP2NN, SKP2NN/6, 7 bar 25 bar 25 bar 15 bar 15 bar 1 bar 1 bar Speed min -1 (rpm) Power kw [HP] 12 [16] [14] 1 [12] 8 [1] [8] [6] [4] [2] Performance graph for 8, frame size Flow l/min [US gal/min] 35 [9] [8] 3 [7] 25 [6] 2 [5] [4] 15 [3] 1 [2] [1] 5 SNP2NN, SKP2NN/8, 7 bar 25 bar 25 bar 15 bar 1 bar Speed min -1 (rpm) Power kw [HP] 15 [2] [15] 1 5 [1] [5] Flow l/min [US gal/min] Performance graph for 11 frame size 5 [13] [12] 45 [11] 4 [1] 35 [9] [8] 3 [7] 25 [6] 2 [5] [4] 15 [3] 1 [2] [1] 5 SNP2NN, SKP2NN/11 7 bar 25 bar 25 bar 15 bar 15 bar 1 bar 1 bar 25 bar Speed min -1 (rpm) Power kw [HP] [3] 2 [25] 15 [2] [15] 1 [1] 5 [5] L116341

20 Pump Performance Performance graphs (continued) Performance graph for 14 frame size Flow l/min [US gal/min] [13] 5 [12] 45 [11] 4 [1] [9] 35 [8] 3 [7] 25 [35] 25 [6] [3] 2 [5] 2 [25] [4] 15 [3] 1 [2] 5 [1] SNP2NN, SKP2NN/14 25 bar 15 [2] [15] 1 [1] 5 [5] Speed min -1 (rpm) 7 bar 15 bar 1 bar 25 bar Power kw [HP] Flow l/min [US gal/min] Performance graph for 17 frame size [13] 5 [12] 45 [11] 4 [1] [9] 35 [8] 3 [7] 25 [6] 2 [5] [4] 15 [3] 1 [2] [1] 5 SNP2/SKP2 17cc SNP2NN, SKP2NN/17 7 bar 25 bar 25 bar 15 bar 1 bar Power kw [HP] [35] 25 [3] 2 [25] 15 [2] [15] 1 [1] 5 [5] Speed min -1 (rpm) Performance graph for 19 frame size Flow l/min [US gal/min] 6 [15] 55 [14] [13] 5 [12] 45 [11] 4 [1] [9] 35 [8] 3 [7] 25 [6] [5] 2 [4] 15 [3] 1 [2] 5 [1] SNP2NN, SKP2NN/19 7 bar 21 bar 21 bar 15 bar 1 bar Speed min -1 (rpm) Power kw [HP] [45] 3 [4] [35] 25 [3] 2 [25] 15 [2] [15] 1 [1] 5 [5] Performance graph for 22 frame size Flow l/min [US gal/min] [18] [17] 7 65 [16] 6 [15] [14] 55 [13] 5 [12] 45 [11] [1] 4 [9] 35 [8] 3 [7] [6] 25 [5] 2 [4] 15 [3] 1 [2] [1] 5 SNP2NN, SKP2NN/22 18 bar 18 bar 15 bar 1 bar Power kw [HP] [35] 24 [3] 2 [25] 16 [2] 12 [15] 8 [1] 4 [5] Speed min -1 (rpm) 7 bar L116341

21 Pump Performance Performance graphs (continued) Performance graph for 25 frame size Flow l/min [US gal/min] 8 [2] [18] 7 [16] 6 [14] 5 [12] [1] 4 [8] 3 [6] 2 [4] 1 [2] SNP2NN, SKP2NN/25 16 bar 1 bar 16 bar Power kw [HP] 3 [4] [3] 2 [2] 1 [1] Speed min -1 (rpm) 7 bar Flow l/min [US gal/min] Performance graph for 19 frame size 6 [16] 55 [14] 5 [12] 45 4 [1] 35 [8] 3 25 [6] 2 [4] 15 1 [2] 5 SHP2NN/19 7 bar 24 bar 15 bar 24 bar 1 bar Power kw [HP] 3 [4] 25 [3] 2 15 [2] 1 [1] Speed min -1 (rpm) Performance graph for 22 frame size Performance graph for 25 frame size Flow l/min [US gal/min] [18] [17] [16] [15] [14] [13] [12] [11] [1] [9] [8] [7] [6] [5] [4] [3] [2] [1] SHP2NN/22 7 bar 21 bar 21 bar 15 bar 1 bar Power kw [HP] [35] 24 [3] 2 [25] 16 [2] 12 [15] 8 [1] 4 [5] Speed min -1 (rpm) Flow l/min [US gal/min] 8 [2] [18] 7 [16] 6 [14] 5 [12] [1] 4 [8] 3 [6] 2 [4] 1 [2] SHP2NN/25 19 bar 19 bar 15 bar 1 bar Speed min -1 (rpm) 7 bar Power kw [HP] 3 [4] [3] 2 [2] 1 [1] L116341

22 Flange, shaft and ports Code Flange Shaft Ports 1BA pilot Ø 36.5 mm [1.438 in] European 1, 4-bolt 1:8 tapered flanged, + pattern 1FA pilot Ø 36.5 mm [1.438 in] European 1, 4-bolt Ø 15 mm [.59 in] parallel flanged, + pattern 1DA pilot Ø 36.5 mm [1.438 in] European 1, 4-bolt Splined 9T - m 1.6 flanged, + pattern 2AA pilot Ø 8 mm [3.15 in] German PTO, 4-bolt 1:5 tapered German std, pattern 2DB pilot Ø 8 mm [3.15 in] German PTO, 4-bolt Splined 9T - m 1.6 German std, pattern 3CA TurollaOCG 3 TurollaOCG tang German std, pattern 4AA pilot Ø 5 mm [1.969 in] German PTO, 2-bolt 1:5 tapered German std, pattern 4DB pilot Ø 5 mm [1.969 in] German PTO, 2-bolt Splined 9T - m 1.6 German std, pattern 5AA pilot Ø 5 mm [1.969 in] German PTO, 2-bolt 1:5 tapered German std, pattern 5DB pilot Ø 5 mm [1.969 in] German PTO, 2-bolt Splined 9T - m 1.6 German std, pattern 22 L116341

23 Flange, shaft and (continued) Code Flange Shaft Port 6GA pilot Ø mm [3.25 in] Ø mm [.625 in] parallel O-Ring boss 6SA pilot Ø mm [3.25 in] 9-teeth splined O-Ring boss 6SB pilot Ø mm [3.25 in] 11-teeth splined O-Ring boss 9BJ pilot Ø mm [2.61 in] Perkins timing case 1:8 tapered German std pattern A9BJ pilot Ø mm [2.61 in] Perkins 9 series 1:8 tapered German std pattern L

24 TurollaOCG offers many types of industry standard mounting flanges. This table shows order codes for each available mounting flange and its intended use: Flange availability A B C D E F G H I J K L M N / / Flange Code Description 1 European 36.5 mm 4-bolts 2 European 8 mm 4-bolts 3 TurollaOCG Pilot Ø mm [2.61 in] Perkins timing caret A9 Pilot Ø mm [2.61 in] Perkins 9 series Shaft options styles. A B C D E F G H I J K L M N / / Shaft Mounting flange code with maximum torque Description Code A9 Taper 1:5 AA 14 [1239] 14 [1239] 14 [1239] Taper 1:8 BA 15 [1328] 15 [1328] 15 [1328] DA 9 [797] DB 13 [1151] 13 [1151] 13 [1151] SA 75 [646] SB 15 [1328] Parallel 15 mm [.59 in] FA 9 [797] Parallel mm [.625 in] GA 8 [78] TurollaOCG Tang CA 7 [62] modified in order to assure a clearance fit with the mating spline. C Caution 24 L116341

25 Inlet/Outlet port Various port configurations are available on Group 2 pumps. They include: German standard flanged ports Gas threaded ports (BSPP) G H A B C D E F G H I J K L M N / / B5 B6 B7 BB C2 C3 C5 C7 C8 D4 D5 D7 D9 E3 E4 E5 E6 E8 F3 F4 F5 F6 H5 H7 H8 H9 15x35xM6 15x4xM6 2x4xM6 27x55xM8 12x26xM5 13,5x3xM6 13,5x4xM8 2x4xM8 23,5x4xM8 M16x1,5 M18x1,5 M22x1,5 M26x1, /16 1 5/ GAS ½ GAS ¾ GAS 1 GAS M18x1,5 M22x1,5 M27x2 M33x2 Flanged port 4 threaded holes in pattern, in center or off-set of body Flanged port 4 threaded holes in + pattern Threaded metric port O-Ring boss port Threaded GAS (BSPP) port Threaded metric port ISO 6149 L

26 Pumps with integral and SNP2IN Group 2 pumps are offered with an optional integral relief valve in the rear cover. directing all flow from the pump outlet to the internal or external drain when the pressure at the outlet reaches the valve setting. This valve can be ordered preset to the pressures shown in the table below. Valve performance curve, rear cover cross-section and schematics are shown below. CCaution Valve performance graph Integral relief valve cross-section psi 5 4 bar 4 3 With mineral 26 cst Minimum valve setting l/min US gal/m P11 565E Inlet Drain Integral relief valve schematics Integral relief valve schematic (internal drain) o Integral relief valve schematic (external drain) o e i i Where: i = inlet o = outlet e = external drain 26 L116341

27 Pumps with integral and SNP2IN (continued) Variant codes for ordering integral relief valves The tables below detail the various codes for ordering integral relief valves in L section of model code. A B C D E F G H I J K L M N S N P 2 E N / / V S N P 2 I N / Code A C E F G K I L M N O Pump speed for RV setting 5 min -1 (rpm) 1 min -1 (rpm) 125 min -1 (rpm) 15 min -1 (rpm) 2 min -1 (rpm) 225 min -1 (rpm) 25 min -1 (rpm) 28 min -1 (rpm) 3 min -1 (rpm) 325 min -1 (rpm) Code A B C D E F G K L M N O P Q R S T U V W X Y Z Pressure setting 18 bar [261 psi] 25 bar [363 psi] 3 bar [435 psi] 35 bar [58 psi] 4 bar [58 psi] 5 bar [725 psi] 6 bar [87 psi] 7 bar [115 psi] 8 bar [116 psi] 9 bar [135 psi] 1 bar [145 psi] 11 bar [1595 psi] 12 bar [174 psi] 13 bar [1885 psi] 14 bar [23 psi] 16 bar [232 psi] 17 bar [2465 psi] 18 bar [2611 psi] 21 bar [346 psi] 24 bar [348 psi] 25 bar [3626 psi] L

28 Pumps with integral and SNP2IN (continued) Integral relief valve covers SNP2IN Dimensions B ±1.5 [±.6] mm [in] 15.7 ±.5 [.618 ±.2] max [4.547 max] 93 max [3.66 max] Type 4, 6, 8, B mm [in] 11. [4.33] [4.47] [4.63] [4.78] [5.2] [5.18] [5.33] [5.57] [5.73] 28 L116341

29 Outrigger bearing assembly An outrigger bearing is available for applications with high radial or thrust loads on the shaft. This option is used primarily for applications with high shaft loads such as to belt or chain drives. The design utilizes roller bearings in the front mounting flange. These bearings absorb the radial and thrust loads on the shaft so that the life of the pump is not affected. The use of roller bearings allows life to be described in B 1 hours. Codes A9DB, 9FDB, 94DB, 9HDB and 9JDB represent assembly (pump complete with outrigger bearing). A B C D E F G H I J K L M N / / Code Shaft Mounting flange A9DB Taper 1:8 9FDB Taper 1:5 German PTO 94DB Taper 1:5 German 4-bolts 9HDB Taper 1:8 9JDB Parallel L

30 Outrigger bearings assembly (continued) Dimensions SNP2NN / A9DB mm [in] 3.2 [ [ ] A ±.5 [.2] 43 [ ] SNP2NN / 94DB B ±.5 [.2] 46.5 [ ] SNP2NN / 9FDB [ [ 157 ] L116341

31 Outrigger bearings assembly (continued) Dimensions SNP2NN / 9HDB mm [in] [ ] 6 [.236] [ ] SNP2NN / 9JDB [ ] [ ] [ ] D max C ±.5 [.2] [ ] [ ] [ ] Dimensions Type vs. A 4, 6, 8, [1.73] 45 [1.772] 45 [1.772] 49 [1.929] 52 [2.47] 52 [2.47] 56 [2.25] 59 [2.323] 59 [2.323] B 37.3 [1.469] 38.6 [1.52] 4.6 [1.598] 45 [1.772] 45 [1.772] 45 [1.772] 45 [1.772] 52.5 [2.67] 62 [2.441] C D [1.73] 9 [3.543] 45 [1.772] 93.5 [3.681] 47 [1.85] 97.5 [3.839] 49 [1.929] 11.5 [3.996] 52 [2.47] 17.5 [4.232] 54 [2.126] [4.39] 56 [2.25] [4.574] 59 [2.323] [4.783] 61 [2.42] [4.941] L116341

32 Auxiliary mounting pads flange and coupling 9 teeth 16/32 pitch. These pads are used for mounting auxiliary hydraulic pumps or creating special tandem gear pumps. Specify 6SL in field E of the model code as shown below Order the auxiliary mounting pad kit, part number K A B C D E F G H I J K L M N / 6 S L / Since the drive coupling is lubricated with oil from the main pump inlet, an O-ring must be used to seal the auxiliary pump-mounting flange to the pad. The combination of auxiliary mounting pad shaft torque, plus the main pump All torque values assume a 58 HRC shaft spline hardness on mating pump shaft. and shaft. SAE J498-9T-16/32DP-flat root side fit SAE A Pad o-ring A 17x14 DIN 5482 M1-6H thru 32 L116341

33 OpenCircuitGear Auxiliary mounting pads (continued) mm [in] 7.9 ±.75 [.311 ±.3] 23.8 ±.25 [.937 ±.1] 4.5 ±.25 [1.594 ±.1] SAE J498-9T-16/32DP-flat root side fit Z A 17x14 DIN 5482 Coupling, o-ring, and screws supplied with pump Z.1 [.4] screws provided M1x3 UNI5931 8G br recommended torque: arrow indicates direction of rotation and outlet port washers provided 1 UNI 175 R4 br o-ring provided 82.22x2.62 [3.237x.13] Straight thread o-ring boss (min full thd 16.7mm [.657] deep) 9 ±.25 [3.543 ±.1 ] 2 ±.75 [.787 ±.3] [ ] Ø Ø.35 [.14] Ø.1/25.4 [.4/1] X K SAE J498-9T-16/32DP-flat root side fit circular thickness.127 mm [.5] less than standard class 1 fit [ ] X Ø.75 [.3] A-A -3 B ±.5 [.2] (31.7 [1.248]) 51.5±.9 [2.28 ±.35] 132 [5.197] max 96 [3.78] max 132 [5.197] max [4.188] = = Ø.5 [.2] Y 9.5 [3.563] max M1-6H R12.7 [.5] max 19.5 [.768] max Ø [ ] X Ø.4 [.16] Ø [ ] Y Spline: B17 x 14 DIN 5482 profile offset +.6 [.25] -.11[ ] Ø16.5 Y Ø.35 [.14] 34.5±1.2 [1.358 ±.47] 7±.2 [.276 ±.8] A ±.5 [.2] [.118 ] [ ] [ ] C/c K [.618 ] 15.7±.5 ± [ ] Ø82.55 X A A [4.188] = 96 [3.78] max = (R12.7 [.5] max) 19.5 [.768] max [4.547] max 122 [4.83] max Dimensions Type (displacement) 4, 6, 8, A [1.73] [1.772] [1.85] [1.929] [2.47] [2.126] [2.25] [2.323] [2.42] B [5.59] [5.197] [5.354] [5.512] [5.748] [5.96] [6.63] [6.299] [6.457] Inlet C 1.63 (1 1/16) 12UN - 2B; 18 mm [.79 in] deep Outlet c.875 (7/8) - 14UNF - 2B; 16.7 mm [.658 in] deep L

34 Pump ports Available pump ports B C E F 45 o a b c (4 holes min. full thd. 1 [.394] deep) d g h (4 holes min. full thd. 1 [.394] deep) e f Dimensions of pumps ports Port type B C E F Port dimensions a b c d g h e f 4, Inlet 15 [.591] 4 [1.575] M [.531] 3 [1.181] M6 1 1 /16 ½ Gas (BSPP) Outlet 15 [.591] 35 [1.378] M [.531] 3 [1.181] M6 7/8 ½ Gas (BSPP) 6, Inlet 15 [.591] 4 [1.575] M [.531] 3 [1.181] M6 1 1 /16 ½ Gas (BSPP) Outlet 15 [.591] 35 [1.378] M [.531] 3 [1.181] M6 7/8 ½ Gas (BSPP) 8, Inlet 2 [.787] 4 [1.575] M [.531] 3 [1.181] M6 1 1 /16 ½ Gas (BSPP) Outlet 15 [.591] 35 [1.378] M [.531] 3 [1.181] M6 7/8 ½ Gas (BSPP) 11 Inlet 2 [.787] 4 [1.575] M [.531] 3 [1.181] M6 1 1 /16 ¾ Gas (BSPP) Outlet 15 [.591] 35 [1.378] M [.531] 3 [1.181] M6 7/8 ½ Gas (BSPP) 14 Inlet 2 [.787] 4 [1.575] M6 2. [.787] 4 [1.575] M8 1 1 /16 ¾ Gas (BSPP) Outlet 15 [.591] 35 [1.378] M [.531] 3 [1.181] M6 7/8 ½ Gas (BSPP) 17 Inlet 2 [.787] 4 [1.575] M6 2. [.787] 4 [1.575] M8 1 1 /16 ¾ Gas (BSPP) Outlet 15 [.591] 35 [1.378] M [.531] 3 [1.181] M6 7/8 ½ Gas (BSPP) 19 Inlet 2 [.787] 4 [1.575] M6 2. [.787] 4 [1.575] M8 1 1 /16 ¾ Gas (BSPP) Outlet 15 [.591] 35 [1.378] M [.531] 3 [1.181] M6 7/8 ½ Gas (BSPP) 22 Inlet 2 [.787] 4 [1.575] M6 2. [.787] 4 [1.575] M8 1 1 /16 ¾ Gas (BSPP) Outlet 15 [.591] 35 [1.378] M [.531] 3 [1.181] M6 7/8 ½ Gas (BSPP) 25 Inlet 2 [.787] 4 [1.575] M [.925] 4 [1.575] M8 1 1 /16 1 Gas (BSPP) Outlet 15 [.591] 35 [1.378] M6 2. [.787] 4 [1.575] M8 7/8 ¾ Gas (BSPP) Frame size 34 L116341

35 OpenCircuitGear Aluminum Gear Pumps Aluminum Gear Motors Cast Iron Gear Pumps Cast Iron Gear Motors Fan Drive Gear Motors Aluminum Fan Drive Gear Motors Cast Iron TurollaOCG, with more than 6 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. TurollaOCG is member of the Sauer-Danfoss Group. Local address: TurollaOCG Via Villanova Villanova di Castenaso Bologna, Italy Phone: Fax: TurollaOCG Kukučínova Považská Bystrica, Slovakia Phone: Fax: TurollaOCG Ames, IA 51 USA Phone: Fax: L