Variable Displacement Pump A10VO
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1 Brueninghaus Hydromatik Variable Displacement Pump A1VO Series 5, open circuits, SAE-Version Axialpiston, swash plate design size 28 6 Nominal pressure 2 bar Peak pressure 315 bar RE 9273/4.96 replaces 8.91 RE 9273/4.96 The variable displacement axial piston pump A1VO in swashplate design was designed for hydrostatic drives in open circuits. Flow is proportional to the drive speed and the displacement. By adjusting the position of the swashplate it is possible to vary the flow steplessly. Strong bearings for long life High permissible drive speed High power-weight ratio Small dimensions Low noise level Good suction characteristics Permissible continous pressure 2 bar Axial and radial loading of drive possible Pressure and flow control Short control times 2 drain ports Brueninghaus Hydromatik 1
2 Type Code A1V O / 52 N Fluid Mineral oil (no desig.) Axial piston unit Variable, swashplate design SAE nominal pressure 2 bar, peak pressure 315 bar A1V Mode of operation Pump, open circuit O Size Displacement V g max (cm 3 ) Control devices Pressure control DR DR Pressure-remote control DRG DRG Pressure- and flow control DFR DFR DFR 1 DFR1 without orifice between X and tank Series Direction of rotation Looking at drive Seals NBR (Nitrile rubber to DIN ISO 1629) FPM (Fluoride rubber to DIN ISO 1629) 52 clockwise counter clockwise R L P V Shaft end Splined SAE 7/8" 1" 1 1/4" Splined SAE (higher through drive torque) 1" Splined SAE (not suitable for through drive) 7/8" Mounting flange SAE 2-bolt SAE 4-bolt S R U C D Service ports Pressure port B Inlet port S SAE- threaded rear Pressure port B Inlet port S SAE- flange rear - UNC threads Pressure port B Inlet port S SAE- flange rear - metric threads Pressure port B SAE- flange side ports Inlet port S UNC - threads Pressure port B SAE- flange side ports Inlet port S metric threads Through drive without through drive N Mounting flange -coupler to mount: 11-2 (SAE B) 22-4 (SAE B) A1VO 28 ( S) K (SAE B) 25-4 (SAE B-B) A1VO 45 ( S) K (SAE C) 32-4 (SAE C) A1VO 6 ( S) K only possible without through drive = available = in preparation = not available 2 Brueninghaus Hydromatik
3 Hydraulic fluid Prior to project design, please see our catalogue sheets RE 922 (mineral oils) and RE 9221 (environmentally compatible fluids) for detailed information on the selection of hydraulic fluids and application conditions. When operating with environmentally compatible fluids certain limitations may apply. Please consult us. Operating viscosity range For optimum efficiency and service life, we recommend that the operating viscosity (at operating temperature) be selected in the range ν opt = optimum operating viscosity mm 2 /s referred to tank temperature (open circuit). referred to tank temperature (open loop circuit). Limits of viscosity range The following values are valid for extreme operating conditions: ν min = 1 mm 2 /s for short periods at max. leakage oil temperature of 9 C. ν max = 1 mm 2 /s for short periods upon cold start. Selection diagramm VG 22 VG 32 VG 68 VG 46 VG 1 Temperature range (see selection diagram) t min = 25 C t max = +9 C Notes on the selection of the hydraulic fluid For correct selection of the fluid it is assumed that the operating temperature in the tank is known (open circuits), in relation to the ambient temperature. The hydraulic fluid should be selected so that, within the operating temperature range, the operating viscosity lies within the optimum range ν opt, (see shaded section of selection diagram). We recommend that the higher viscosity grade is selected in each case. Example: At an ambient temperature of X C the operating temperature in the tank will be 6 C. In the optimum operating viscosity range (ν opt ; shaded section) this corresponds to viscosity grade VG 46 or VG 68; VG 68 should be selected. Important: The leakage oil temperature is influenced by pressure and speed and is always higher than the tank temperature. At no point in the system, however, may the temperature be higher than 9 C. If it is not possible to comply with the above conditions because of extreme operating parameters or a high ambient temperature, please consult us. Viskosität ν (mm/s) Viscosity ν (mm 2 /s) ν opt t min = 25 C Druckflüssigkeitstemperaturbereich Fluid temperature range Filtration In order to guarantee reliable function, the operating fluid must be maintained to a cleanliness grade of minimum 9 to NAS 1638 or 6 to SAE 18/15 to ISO/DIS 446 This may be achieved for example with filter elements, type...d 2...(see RE 75). This gives a filtration quotient of β Temperature t ( C) t( o C) t max = + 9 C Brueninghaus Hydromatik 3
4 Technical Data Operating pressure range - Inlet side Absolute pressure at port S (inlet port) p abs min,8 bar p abs max 3 bar Operating pressure range - Outlet side pressure at port B Nominal pressure p N 2 bar Peak pressure p max 315 bar (Pressure data to DIN 24312) Direction of flow S to B. Case drain pressure Maximum permissible pressure of leakage fluid (at port L, L 1 ): maximum,5 bar higher than the inlet pressure at port S, but not higher than 2 bar absolute. Determination of inlet pressure p abs at the inlet port, resp. the reduction in displacement for increasing speed. Speed n/n max 1,2 1,1 1,,9,7,8,9 1, Displacement V g /V gmax 1,6 1,4 1,2 1,,9,8 Inlet pressure p abs (bar) Table of values (theoretical values, without considering η mh and η v ; values rounded) Size Displacement V g max cm Max. speed 1 ) at V g max n o max min ) 27 Max. flow at n o max Q o max L/min at n E = 14 rpm L/min Max. power ( p = 2 bar) at n o max P o max kw at n E = 14 rpm kw Max. torque ( p = 2 bar) at V g max M max Nm Moment of inertia about drive axis J kgm 2,17,33,56 Fill capacity L,3,5,8 Approx. weight (without oil fill) m kg Permissible loading on drive : max. perm. axial force F ax max N max. perm. radial force F q max N ) The values shown are valid provided there is an absolute pressure of 1 bar at suction inlet S. By increasing the inlet pressure (p abs >1bar) or reduction of the diplacement, the speed can be raised up to the maximum speed limit (see diagram). 2 ) Higher drive speed on request Direction of force± Fax F q X/2 X/2 X Calculation of size V g n η v Flow Q = [L/min] Drive torque M = 1 1,59 V g p [Nm] 1 η mh Drive power 2π M n P = M n = = Q p [kw] η t V g = geometr. displacement [cm 3 ] per rev. p = pressure differential [bar] n = speed [rpm] η v = volumetric efficiency η mh = mech.-hydr. efficiency η t = overall efficiency (η t = η v η mh ) 4 Brueninghaus Hydromatik
5 Operating Curves for Pump with Pressure Control DR Noise level Measured in an anechoic chamber to DIN Distance from microphone to pump = 1 m Measuring error to DIN 45635, part 1: ± 2 db (A) (Fluid: hydraulic oil to ISO VG 46 DIN 51519, t = C) Size 28 Size Q max n = 1 rpm 75 Q n = 3 rpm min 73 Q n = 3 min rpm -1 max 9 71 Q min 8 69 n = 1 min rpm -1 6 Q Noise level L A [db(a)] Operating pressure p [bar] Drive power and output flow (fluid: mineral oil to ISO VG 46 DIN 51519, t = C) Flow Q [L/min] P Qmin Operating pressure p [bar] P Qmax Drive power P[kW] Size 45 8 Noise level L A [db(a)] n = 26 min rpm -1 n = 1 min rpm Operating pressure p [bar] Q max Q min Q max Q min 2 Flow Q [L/min] Size 45 n = 1 rpm n = 26 rpm Q 6 P 4 Qmax 3 2 P Qmin Operating pressure p [bar] Drive power P[kW] Size 6 Size 6 Noise level L A [db(a)] n = 27 min -1 n = 1 min -1 Q max Q min Q max Q min n = 1 rpm n = 27 rpm Flow Q [L/min] Q P Qmax P Qmin Drive power P[kW] Operating pressure p [bar] Operating pressure p [bar] 2 Brueninghaus Hydromatik 5
6 Installation Notes Installation position is optional. The pump housing must be filled with fluid during commissioning and remain full when operating. In order to achieve the lowest noise value, all connections (suction, pressure, case drain ports) must be linked by flexible couplings to tank. Avoid placing a check valve in the case drain line. This may, however, be permissible in individual cases, after consultation with us. 1. Vertical installation ( end upwards) The following installation conditions must be taken into account: 1.1. Arrangement in tank Before installation fill pump housing, keeping it in a horizontal position. a) If the minimum fluid level is equal to or above the pump mounting surface leave ports L, "L 1 " and S open (see Fig.1). b) If the minimum fluid level is below the pump mounting surface pipe port L 1, and possibly S according to Fig. 2. Close port "L" with respect to conditions in Fluid 2. Horizontal installation The pump must be installed, so that "L" or "L 1 " is at the top Installation within a tank a) If the minimum fluid level is equal to or above the top of the pump,ports "L", "L 1 " and S should remain open (see fig. 3) b) If the minimum fluid level is below the top of the pump, pipe ports "L", "L 1 " and possibly "S" as fig. 4. The conditions correspond to item L 1 L Fluid S p In min fig. 3 S 1.2. Installation outside a tank Before installing the pump, fill the pump with housing in the horizontal position.for mounting above a tank see fig. 2. Limiting conditions: Minimum pump inlet pressure p in min =,8 bar both static and dynamic conditions. Note: Avoid mounting above a tank wherever possible in order to achieve a low noise level. The permissible suction height h comes from the overall pressure loss, but may not be bigger than h max = 8 mm (immersion depth h d min = 2 mm). L 1 S Fluid L 1 L fig. 1 h max h d min L fig Installation outside a tank Fill the pump housing before commissioning. Pipe ports "S" and the higher port "L" or "L 1 ". a) When mounting above the tank, see fig. 4. Conditions correspond to L L 1 b) Mounting below the tank Pipe ports "L" and S according to fig.5. Fluid Fluid S fig. 4 p In min h max Overall pressure loss p total = p 1 + p 2 + p 3 (1 p in. min ) =,2 bar p 1 : Pressure loss in pipe due to accelerating column of fluid ρ l dv p 1 = 1 5 (bar) dt ρ = density (kg/m 3 ) l = pipe lenght (m) dv/dt = change in rate of fluid velocity (m/s 2 ) p 2 : Pressure loss due to static head p 2 = h ρ g 1 5 (bar) h = head (m) ρ = density (kg/m 3 ) g = gravity. = 9,81 m/s 2 p 3 : Line losses (elbows etc.) 6 Brueninghaus Hydromatik L L 1 p In min S fig. 5
7 2 tief ø32 58,7 ø ø11,6h8 ø7/8" RE 9273/4.96 Prior to finalising your design, please request certified installation drawing. All rights reserved subject to revision. Dimensions size 28 DR Version A1VO 28 DFR 61 DFR1 /52 R -X S C 64 N DRG 12 9,5 6, /4-16UNF-2B Flansch Flange 11-2 SAE J744 OCT ,3 123,5 45 1/4-2UNC-2B W 97,3 68, ,1 27 7, ; Welle 22-4; SAE SAE J744 J744 OCT 7/8" Keilwellengröße; 3 o 83 Eingriffswinkel; 13 Zähne; 3 o pressure 16/32 Pich-Tlg.; angle; abgeflachter 13 teeth, Lückengrund; Flankenzentrierung; Toleranzklasse 5; ANSI B92.1a-1976 L View W Portplate 64 shown is clockwise rotation /16-2UNF-2B 1 deep View W Portplate 61 shown is clockwise rotation 1 5/8-12UN-2B deep /16-12UN-2B 2 tief 17 deep SAE 1 1/4" standard Standarddruckreihe pressure range 7/16-14UNC-2B 24 tief deep 3, ,2 SAE 3/4" standard Standarddruckreihe pressure range 3/8-16 UNC tief deep For ccw - rotation, turn port plate 18 o For ccw - rotation, turn port plate 18 o Ports B Pressure port 1 1/16-2UN-2B S Inlet port 1 5/8-12UN-2B L/L 1 Case drain 3/4-16UNF-2B X Pilot port 7/16-2UNF-2B in model pressure control DR pilot port X is plugged Ports B Pressure port SAE 3/4" (Standard pressure range) S Inlet port SAE 1 1/4" (Standard pressure range) L/L 1 Case drain 3/4-16UNF-2B X Pilot port 7/16-2UNF-2B in model pressure control DR pilot port X is plugged Brueninghaus Hydromatik 7
8 Prior to finalising your design, please request certified installation drawing. All rights reserved subject to revision. Dimensions size 45 Pressure control DR Version A1VO 45 DR /52 R-X S C 11 N 61 Flansch Flange 11-2 SAE J744 OCT ; SAE J744 OCT 83 3 pressure angle, 15 teeth, View W Portplate 11/61 Shaft S 3 o pressure angle, 15 teeth, Shaft R w. plate 11 N M 12; 2 deep w. plate 61 N 1/2-13UNC-2B w. plate 11 N M 1; 17 deep w. plate 61 N 3/8-16UNC-2B Shown for clockwise rotation For ccw - rotation, turn port plate 18 o 3 o pressure angle, 15 teeth, useble spline length Shaft U 3 o pressure angle, 13 teeth, Ports B Pressure port SAE 1" (Standard pressure range) S Inlet port SAE 1 1/2" (Standard pressure range) L/L 1 Case drain 7/8-14UNF-2B 8 Brueninghaus Hydromatik
9 Prior to finalising your design, please request certified installation drawing. All rights reserved subject to revision. Dimensions size 45 Version A1VO 45 DFR /52 R- X S C 64 N DRG Flange Flansch 11-2 SAE J744 OCT 83 ø11,6 h ; SAE J744 OCT 83 3 pressure angle, 15 teeth; View W Portplate 64 Shaft S 2 deep 7/16-2UNF-2B 1 deep 3 o pressure angle, 15 teeth, Shaft R Shown is clockwise rotation For ccw - rotation, turn port plate 18 o 2 deep 3 o pressure angle, 15 teeth, useble spline length Shaft U 3 o pressure angle, 13 teeth, Ports B Pressure port 1 5/16-12UN-2B S Inlet port 1 7/8-12UN-2B L/L 1 Case drain 7/8-14-UNF-2B X Pilot port 7/16-2UNF-2B Brueninghaus Hydromatik 9
10 Prior to finalising your design, please request certified installation drawing. All rights reserved subject to revision. Dimensions size 45 Version A1VO 45 DFR /52 R- X U C 12 N DRG 62 Flange 11-2 SAE J744 OCT 83 ø11,6 h8 standard pressure range w. plate 12 N M 12; 2 deep w. plate 62 N 1/2-13UNC-2B 22-4; SAE J744 OCT 83 3 pressure angle, 13 teeth; View W Shaft S View V 7/16-2UNF-2B 1 deep 3 o pressure angle, 15 teeth, Shaft R standard pressure range w.plate 12 N M 1; 17 deep w. plate 62 N 3/8-16UNC-2B Shown for clockwise rotation For ccw - rotation, turn port plate 18 o 3 o pressure angle, 15 teeth, useble spline length Shaft U 3 o pressure angle, 13 teeth, Ports B Pressure port SAE 1" (Standard pressure range) S Inlet port SAE 1 1/2" (Standard pressure range) L/L 1 Case drain 7/8-14UNF-2B X Pilot drain 7/16-2UNF-2B 1 Brueninghaus Hydromatik
11 ,5 137 RE 9273/4.96 Prior to finalising your design, please request certified installation drawing. All rights reserved subject to revision. Dimensions size 6 Version A1VO 6 DR DFR /52 R- X S C 61 N DRG , Flansch flange SAE J744 OCT 83 7/8-14UNF-2B 7/8-14UNF-2B 14,3 ø127h8 ø1 1/4" 5/16-18UNC-2B W 78,5 6 View W Port plate X 12,5 7/16-2UNF-2B 1 deep ,5 55,4 7, , ,8 32-4; SAE J744 OCT 83 3 pressure angle, 14 teeth; 12/24 DP ø S B ø 25 52,4 S SAE 2" Standarddruckreihe pressure range 1/2-13UNC-2B 22 tief deep 42, Shown for clockwise rotation For ccw - rotation, turn port plate 18 o 26,2 B SAE 1" Standarddruckreihe pressure range 3/8-16UNC-2B 18 tief deep Ports B Pressure port SAE 1" (Standard pressure range) S Inlet port SAE 2" (Standard pressure range) L/L 1 Case drain 7/8-14UNF-2B X Pilot port 7/16-2UNF-2B in model pressure control DR pilot port X is plugged Brueninghaus Hydromatik 11
12 DR Pressure control The pressure control serves to maintain a constant pressure in the hydraulic system, within the control range of the pump. The pump therefore supplies only the amount of hydraulic fluid required by the actuators. Pressure may be steplessly set at the pilot valve. Dimensions see page 7,8 and 11. Static characteristic (at n 1 = 1 rpm; t oil = C) hysteresis and pressure increase p max 4 bar Q max Flow Q Q min setting range 2 2 Operating pressure p (bar) Control oil cosumption max. 3 L/min. Dynamic characteristics The curves show average measured values under test conditions, unit in the tank. Conditions: n = 1 rpm t oil = C Line relief valve set at 315 bar Stepped loading by suddenly opening or closing the pressure line using a pressure relief valve at 1m downstream from the axial piston unit. Operating pressure p [bar] V g max V gmax Displacement (swivel angel) V g min V gmin Control time t stroking time t SA de-stroking time t SE Size t SA (ms) t SA (ms) t SE (ms) against bar against 22 bar zero stroke 2 bar Brueninghaus Hydromatik
13 DRG Pressure control, remote control Function and design as for DR. A pressure relief valve may be externally piped to port X for remote control purposes. It is not, however, included with the DRG control. The differential pressure at the pilot valve is set as standard to 2 bar and this results in a pilot flow of 1,5 L/min. If another setting is required (in the range 1 22 bar), please state this in clear text. We recommend that one of the following is used as the separate pressure relief valve: DBDH 6 (hydraulic) to RE 2542, DBEC-3X (electrical) to RE or DBETR-SO 381 with,8 mm dia. nozzle in P (electrical) to RE The length of piping must not exceed 2m. Not included in supply Static characteristic (at n 1 = 1 rpm; t oil = C) hysteresis and pressure increase p Flow Q setting range 2 2 Operating pressure p [bar] Dimensions see pages 7, 9, 1 and 11. Control data Hysteresis and repetitive accuracy p...max. 3 bar Max. pressure increase Size p bar Control oil consumption... approx. 4,5 L/min Flow loss at Q max see page 5. Brueninghaus Hydromatik 13
14 DFR/DFR1 Pressure/flow control In addition to the pressure control function, the pump flow may be varied by means of a differential pressure at the actuator (e.g. an orifice, not included in supply). The pump flow is equal to the actual required flow by the actuator. The DFR1-valve has no connection between X and tank. Dimensions see pages 7, 9, 1 and 11. Static characteristic (at n 1 = 1 rpm; t oil = C) not included in supply with DFR1 no connection Q max max Flow Q Setting range Q (see table of values) Q min min 2 Operating pressure p (bar) 2 Static characteristic at variable speed Q Q max max Flow Q Q (see table of values) Q min Q min Speed n n max (rpm) Max. Flow deviation (hysteresis and increase) measured at drive speed n = 1 rpm Size Q L/min 1, 1,8 2,5 Dynamic characteristic of flow control The curves shown are measured average values under test conditions, with the unit within the tank. Displacement V g (%) stroking time t SA (stand by) Control time t de-sroking time t SE t SA (ms) t SE (ms) t Size SE stand by 2 bar 2 bar stand by bar stand by 28 upon request upon request Load pressure p (bar) Control oil consumption max. 3 L/min. Flow control/differential pressure p: Adjustable between 1 and 22 bar Standard setting: 14 bar. If a different setting is required, please state in clear text. When port X is unloaded to tank, a zero stroke pressure of p =18 ± 2 bar ("stand by") results. Optional valves at port B (not included in supply) Mobile valve blocks SP 12 (RE 64145) Mobile valve blocks SP 18 (RE 64148) Mobile valve blocks MP 18 (RE 64594) Mobile valve blocks MP 22 (RE 64598) Proportional directional valves 4WRE (RE 296) 14 Brueninghaus Hydromatik
15 Brueninghaus Hydromatik 15
16 Brueninghaus Hydromatik GmbH, Werk Horb, D 7216 Horb, An den Kelterwiesen 14, Tel. (7451) 92, Telex , Fax (7451) Brueninghaus Hydromatik
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