RE 92 500/07.00 Replaces: 03.97 Variable isplacement Pump A11VO for open circuits izes 40 260 eries 1 Nominal pressure 350 bar Peak pressure 400 bar A11VO Index Features 1 Ordering Code / tandard Program 2...3 Technical ata 4...6 Power Control 7 Power Control with Pressure Cut-off 8 Power Control with Load ensing 9... Power Control with troke Limiter 10...11... Power Control with Override 12...13 R Pressure Control 14...15 H Hydraulic Control, Pilot Pressure ependent 16 EP Electric Control with Proportional olenoid 17 Unit imensions ize 40 18...20 Unit imensions ize 60 21...23 Unit imensions ize 75 24...26 Unit imensions ize 95 27...29 Unit imensions ize 130 30...33 Unit imensions ize 190 34...37 Unit imensions ize 260 38...41 Through rive imensions 42...43 Overview of A11VO Attachments 44 Pump Combinations A11VO + A11VO 44 Permissible Input or Through rive Torque 45 wivel Angle isplay 46 Installation and Commissioning Notes 47 Preferred Types 48 Features Variable displacement pump with axial piston drive swashplate design for hydrostatic drives in open circuits esigned primarily for use in mobile applications Pump operation either self-priming, with tank charging or charging pump A comprehensive range of variable units is available for different control functions Power can be adjusted from the outside, even when the machine is running The through drive is suitable for attachment of gear pumps and axial piston pumps up to the same size, i.e. 100% through drive The volume flow is adjustable in proportion to the drive speed and displacement and is infinitely variable from q V max to q V min = 0 A11VO 1/48 rueninghaus Hydromatik
Ordering Code / tandard Program Fluid ineral oil (no short code) Axial piston unit Variable displacement, swashplate design A11V Charging pump (impeller) 40 60 75 95 130 190 260 without charging pump (no short code) with charging pump L Operating mode Pump, open circuits ize =^ isplacement (cm 3 ) 40 60 75 95 130 190 260 Control devices 40 60 75 95 130 190 260 Power control with override cross-sensing C.C high pressure dependent 3 3 pilot pressure dependent, negative L1 L1 pilot pressure dependent, positive L2 L2 with 12V solenoid, negative LE1 LE1 with 24V solenoid, negative LE2 LE2 with pressure cut-off L... 2-stage E L. E.. remote controlled L... with load sensing L... electric override 2 L... 2 hydraulic override 5 L... 5 with stroke limiter negative control p = 25 bar H1 L... H1 negative control p = 10 bar H5 L... H5 positive control p = 25 bar H2 L... H2 positive control p = 10 bar H6 L... H6 positive control U = 12 V U1 L... U1 positive control U = 24 V U2 L... U2 Pressure control R R with load sensing R R remote controlled R R for parallel operation RL RL Hydraulic control, p = 10 bar H1 H1 pilot pressure dependent p = 25 bar H2 H2 with pressure cut-off H. with pressure cut-off, remote controlled H. Electric control, U = 12 V EP1 EP1 with proportional solenoid U = 24 V EP2 EP2 with pressure cut-off EP. with pressure cut-off, remote controlled EP. For controls with several additional functions, follow the order of the columns. Only one option possible in each column (e.g. CH2). Note that the following combinations are not possible with the power control:, 2, 5, EC and the combination in conjunction with stroke limiters H1, H2, H5, H6, U1 and U2. O = available = available on request = preferred program (preferred types see page 48) = not available rueninghaus Hydromatik 2/48 A11VO
Axial piston unit Charging pump Operating mode ize Control devices eries Index A11V O / 1 12 izes 40...130 0 izes 190...260 1 irection of rotation Viewed on shaft end clockwise R anti-clockwise L eals NR (nitrile rubber), shaft seal FK (fluoride rubber) haft end 40 60 75 95 130 190 260 plined shaft IN 5480 for individual pumps and pump combinations Cylindrical shaft with key IN 6885 P plined shaft ANI 92.1a-1976 standard for single pump standard for combination pump 1 ) 1 ) T ounting flange AE J744 2 hole C AE J744 4 hole Connection for service lines Pressure port and suction port AE side ports (metric threads) 12 Through drive (for mounting options see page 30) Flange AE J744 2) plined shaft hub 40 60 75 95 130 190 260 N00 82-2 (A) 5/8in 96/32P 3 ) K01 3/4in 116/32P 3 ) K52 101-2 () 7/8in 136/32P 3 ) K02 1in 156/32P 3 ) K04 W35 2x30x16x9g 4 ) K79 127-2 (C) 1 1/4in 142/24P 3 ) K07 1 1/2in 172/24P 3 ) K24 W30 2x30x14x9g 4 ) K80 W35 2x30x16x9g 4 ) K61 152-4 () 1 1/4in 142/24P 3 ) K86 1 3/4in 13T 8/16P 3 ) K17 W40 2x30x18x9g 4 ) K81 W45 2x30x21x9g 4 ) K82 W50 2x30x24x9g 4 ) K83 165-4 (E) 1 3/4in 13T 8/16P 3 ) K72 W50 2x30x24x9g 4 ) K84 W60 2x30x28x9g 4 ) K67 wivel angle display without swivel angle display (no short code) with optical swivel angle display V with electric swivel angle display R 1 ) shaft suitable for combination pump 2 ) 2 =^ 2 hole; 4 =^ 4 hole 4 ) plined shaft hub to IN 5480 3 ) plined shaft hub to ANI 92.1a-1976 (splined shaft allocation to AE J744, see pages 42/43) 1 N A11VO 3/48 rueninghaus Hydromatik
Technical ata Hydraulic Fluid We request that before starting a project, detailed information about the choice of hydraulic fluids and application conditions are taken from our catalogue sheets RE 90220 (mineral oil), RE 90221 (environmentally acceptable hydraulic oils) and RE 90223 (HF hydraulic fluids). The A11VO variable displacement pump is not suitable for operation with HFA, HF and HFC. When operating with HF or environmentally acceptable hydraulic fluids, restrictions in the technical data should be noted please contact us (the hydraulic fluid used should be stated in clear text in the order). Operating viscosity range We recommend that the operating viscosity (at operating temperature), for both the efficiency and life of the unit, be chosen within the optimum range of: ν opt = opt. operating viscosity 16 36 mm 2 /s referred to tank temperature (open circuit). Notes on the selection of hydraulic fluid In order to select the correct fluid, it is necessary to know the operating temperature in the tank (open circuit) 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 the selection diagram). We recommend that the higher viscosity grade is selected in each case. Example: At an ambient temperature of C, the operating temperature in the tank is 60 C. In the optimum viscosity range ν opt (shaded area), this corresponds to viscosity grades V 46 or V 68. V 68 should be selected. Important: The leakage oil temperature is influenced by pressure and speed and is typically higher than the tank temperature. However, maximum temperature at any point in the system must be less than 115 C. Please consult rueninghaus Hydromatik if the above conditions cannot be kept at extreme operating parameters or because of high ambient temperature. Viscosity limits The limiting values for viscosity are as follows: ν min = 5 mm 2 /s short term, at a max. permissible leakage oil temperature t max = 115 C ν max = 1600 mm 2 /s short term, on cold start (t min = -40 C) Please note that the max. fluid temperature is also not exceeded in certain areas (for instance bearing area). At temperatures of 25 C to 40 C special measures may be required. Please contact us for further information. election diagram 2500-40 -20 0 20 40 60 80 100 1600 1000 600 400 200 V 22 V 32 V 68 V 46 V 100 1600 100 Viscosity ν in mm 2 /s 60 40 20 36 16 ν opt. 10 5 5-40 -25-10 0 10 30 50 70 90 115 Temperature t in C t min = -40 C Fluid temperature range t max = +115 C rueninghaus Hydromatik 4/48 A11VO
Technical ata Filtration The finer the filtration, the better the achieved purity grade of the hydraulic fluid and the longer the life of the axial piston unit. To ensure the functioning of the axial piston unit, a minimum purity grade of 9 to NA 1638 18/15 to IO/I 4406 is necessary. At very high hydraulic fluid temperatures, a minimum purity grade of 8 to NA 1638 17/14 to IO/I 4406 is necessary. If the above mentioned grades cannot be maintained, please consult us. aximum permissible speed (speed limit) Permissible speed due to increasing the input pressure p abs at suction port or if V g < peed nmax / nmax1 1,2 1,1 1,0 p abs = 1 bar p abs = 1,5 bar 0,9 0,8 0,9 1,0 Input operating pressure range Absolute pressure at port (suction port) Version without charging pump p abs min 0,8 bar p abs max 30 bar Please consult us if the pressure is > 5 bar. Version with charging pump p abs min 0,6 bar p abs max 2 bar Output operating pressure range Pressure at port A or Nominal pressure p N 350 bar Peak pressure p max 400 bar Case drain pressure isplacement V g / haft seal temperature range The FP shaft seal is suitable for housing temperatures of 25 C to +115 C. Note: An NR shaft seal is required for applications below 25 C (permissible temperature range: -40 C to +90 C). Please state NR shaft seal in clear text when ordering. Charging pump The charging pump is a centrifugal pump. Its role is to charge the A11VO, enabling it to run at higher speeds. It also makes cold starting easier at low temperatures and high hydraulic fluid viscosity. Tank charging is never required. aximum permissible pressure of the leakage fluid at ports and p L 2 bar abs. A drain oil line to the tank is necessary. Flushing the housing If a variable displacement pump with variable displacement units EP, H, R or with stroke limiter (H., U.) is operated for an extended period (t > 10 min) with zero volume flow or operating pressure < 15 bar, the housing should be flushed via one of the ports T1, T2 or R to avoid overheating. N 40 60 75 95 130 190 260 q V flush (L/min) 2 3 3 4 4 5 6 It is not necessary to flush the housing on the version with charging pump (A11VLO). A 1 R A11VO 5/48 rueninghaus Hydromatik
Technical ata Table of values, (theoretical values, regardless of η mh and η v ; approximate values) ize A11VO 40 60 75 95 130 190 260 A11VLO (with charging pump) 130 190 260 isplacement cm 3 42 58,3 74 93,8 130 192,7 260 130 192,7 260 cm 3 0 0 0 0 0 0 0 0 0 0 ax. speed 1 ) at n max min 1 3000 2700 2550 2350 2100 2100 1800 2500 2 ) 2500 2 ) 2300 2 ) ax. speed 3 ) at V g n max min -1 3500 3250 3000 2780 2500 2500 2300 2500 2500 2300 Flow 4 ) at n max und q V max L/min 122 153 183 214 265 393 454 315 467 580 Power at q V max and p = 350 bar P max kw 73 92 110 129 159 236 273 190 281 349 Torque at and p = 350 bar T max Nm 234 324 412 522 724 1073 1448 724 1073 1448 oment of inertia about the drive axis J kgm 2 0,0048 0,0082 0,0115 0,0173 0,0318 0,055 0,0878 0,0337 0,0577 0,0895 Weight (approx.) m kg 28 36 45 53 66 95 125 69 100 130 1 ) The values are quoted for an absolute pressure (p abs ) of 1 bar at suction port and mineral fluid. 2 ) The values are quoted for an absolute pressure (p abs ) of at least 0.8 bar at suction port and mineral operating fluid. 3 ) The values are quoted for V g < or increase of the input pressure p abs at suction port (see graph on page 5). 4 ) Allows for 3% displacement loss. etermination of size V g n η v Flow q V = in L/min 1000 V g p 1,59 V g p rive torque T = = in Nm 20 π η mh 100 η mh 2π T n T n q V p rive power P = = = in kw 60000 9549 600 η t V g = geometric displacement per revolution in cm 3 p = differential pressure in bar n = speed in rpm η v = volumetric efficiency η mh = mechanical-hydraulic efficiency η t = total efficiency (η t = η v η mh ) rive Permissible radial and axial loading of drive ize 40 60 75 95 130 190 260 istance of F q a mm 17,5 17,5 20 20 22,5 26 29 F q (from shaft collar) b mm 30 30 35 35 40 46 50 a, b, c c mm 42,5 42,5 50 50 57,5 66 71 ax. permissible radial force a F q max N 3600 5000 6300 8000 11 000 16 925 22 000 at b F q max N 2891 4046 4950 6334 8594 13 225 16 809 c F q max N 2416 3398 4077 5242 7051 10 850 13 600 - ax. permissible axial force F ax ± F ax max N 1500 2200 2750 3500 4800 6000 4150 + rueninghaus Hydromatik 6/48 A11VO
Power Control Power control regulates the pump displacement as a function of operating pressure so that a preset drive output is not exceeded at constant drive speed. p V g = constant p = operating pressure V g = displacement Precise adjustment according to the hyperbolic characteristic ensures optimum power utilisation. The operating pressure acts, via a piston, on a fulcrum. This is countered by an externally adjustable spring force which determines the power setting. If the operating pressure exceeds the set spring force, the pilot valve is actuated via the fulcrum and the pump swivels back (direction V g min). This shortens the lever length at the fulcrum and the operating pressure can increase in the same proportion as the displacement decreases (p V g = constant). The output power (characteristic) is influenced by the efficiency of the pump. When ordering, please state in clear text: rive power P in kw rive speed n in rpm ax. flow qv max in L/min Once the details have been clarified, a power graph can be produced on our computers. Characteristic: Operating pressure p in bar Circuit diagram: isplacement A 1 R 320 bar etting range tart of control 50 bar A11VO 7/48 rueninghaus Hydromatik
Power Control with Pressure Cut-off Power control with pressure cut-off Pressure cut-off corresponds to a pressure control which adjusts the pump displacement back to when the set pressure signal value is reached. This function overrides power control, i.e. below the pressure signal value, the power control function is performed. The valve is integrated into the control housing and is permanently set to a pressure signal value at the factory. etting range 50 to 350 bar. Characteristic: E Power control with 2-stage pressure cut-off equencing an external pilot pressure at port allows the basic pressure cut-off value to be increased by 50 +20 bar and a second pressure setting to be implemented. This value is higher than the setting value of the primary pressure relief valve and thus switches off pressure cut-off. The pressure signal at port must be between 20 and 50 bar. Characteristic: E Operating pressure p in bar 350 50 max etting range min Operating pressure p in bar 390 370 350 320 Increased pressure cut-off =^ Pressure cut-off switched off Primary pressure relief valve asic pressure cut-off value isplacement isplacement Circuit diagram: Circuit diagram: E A A 1 R 1 R rueninghaus Hydromatik 8/48 A11VO
Power Control with Load ensing Power control with pressure cut-off and load sensing The load sensing control works as a flow controller controlled by load pressure and co-ordinates the pump displacement to the quantity required by the actuator. The pump flow depends on the external orifice (control block, throttle valve) switched between the pump and the actuator, but is not affected by the load pressure over the whole range below the pressure signal value. The valve compares the pressure upstream of the orifice with the downstream pressure and keeps the pressure drop (differential pressure p) occurring here, and hence the flow, constant. If the differential pressure rises, the pump is swivelled back (direction ). If the differential pressure p drops, the pump is swivelled out (direction ) until balance is restored in the valve. Circuit diagram: (1) A p orifice = p pump p actuator The setting range for p is between 14 bar and 25 bar. The standard setting is 18 bar (please state in clear text). The stand-by pressure in zero stroke mode (orifice closed) is slightly higher than the p-setting. Power control and pressure cut-off override the load sensing control, i.e. the load sensing function is performed below the set hyperbolic characteristic and below the set pressure signal value. In a standard L system, pressure cut-off is integrated into the pump control. In an LUV system, pressure cut-off is integrated into the LUV valve block. (1) The orifice (throttle valve) is not included in the supply. Characteristic: Operating pressure p in bar isplacement 1 Circuit diagram: 5 R 5 Power control with load sensing, with hydraulic override y sequencing an external pilot pressure at port, the differential pressure p of the load sensing control can be proportionally overridden. An example of this is shown in the characteristic below. Please consult us when planning your system. Characteristic: 5 (1) pl in bar 25 18 14 10 5 0 5 13 6 2 10 15 20 25 30 Pilot pressure p z in bar 4 A 1 R A11VO 9/48 rueninghaus Hydromatik
... Power Control with troke Limiter... Power control with stroke limiter The stroke limiter enables the pump displacement to be infinitely varied or limited across the whole setting range. The displacement is set once proportionally by the pilot current applied at the proportional solenoid or the pilot pressure applied at port (max. 40 bar). irect current at 12V (U1) or 24V (U2) respectively is required to trigger the proportional solenoid (insulation IP 54). The stroke limiter is overridden by the power control, i.e. below the power control characteristic (hyperbolic characteristic) the displacement is set according to the pilot current or pilot pressure. If the power control characteristic is exceeded by the flow set or the operating pressure, the power control overrides and readjusts the displacement according to the hyperbolic characteristic. To swivel the pump out of its initial position towards, a positioning pressure of 30 bar is needed with the electric stroke limiter U1/2 and the hydraulic stroke limiter H2/6. The necessary positioning oil is taken from the high pressure or from the external positioning pressure available at port (> 30 bar). If the operating pressure is > 30 bar and > 0, no external positioning pressure is required. In this case the change-over valve should be removed from the pump before commissioning (see note in repair instructions RE 92500-R) and port should be closed. U1/2 Power control with electric stroke limiter (positive control) Control from to As the pilot current increases, the pump swivels to a higher displacement. tart of control at approx.: 400 ma (12 V) 200 ma (24 V) End of control at approx.: 1200 ma (12 V) 600 ma (24 V) tarting position in unpressurised state: At operating pressure > 30 bar the pump swivels from towards (pilot current < start of control) The following are available to trigger the proportional solenoid: Proportional amplifier PV (see RE 95023) Proportional amplifier V000 (see RE 29904) Chopper amplifier CV (see RE 95029) icrocontroller C (see RE 95050) Characteristic: U2 800 Pilot current I in ma 600 400 200 0 0,5 1,0 isplacement Circuit diagram: U1/2 A 1 R rueninghaus Hydromatik 10/48 A11VO
... Power Control with troke Limiter H1/5 Hydraulic stroke limiter (negative control) Control from to As the pilot pressure rises, the pump swivels to a smaller displacement. tart of control (at ) adjustable from 4 10 bar Please state start of control in clear text when ordering. tarting position in unpressurised state: H2/6 Hydraulic stroke limiter (positive control) Control from to As the pilot pressure rises, the pump swivels to a higher displacement. tart of control (at ) adjustable from 4 10 bar Please state start of control in clear text when ordering. tarting position in unpressurised state: At operating pressure > 30 bar the pump swivels from towards (pilot pressure < start of control) Characteristic: H1 Pilot pressure rise ( ) p = 25 bar Pilot pressure pt in bar etting range 35 30 25 20 15 10 4 0 0,5 1,0 isplacement Characteristic: H2 Pilot pressure rise ( ) p= 25 bar Pilot pressure pt in bar etting range 35 30 25 20 15 10 4 0 0,5 1,0 isplacement Characteristic: H5 Pilot pressure rise ( ) p = 10 bar Pilot pressure pt in bar etting range 20 15 10 4 0 0,5 1,0 isplacement Characteristic: H6 Pilot pressure rise ( ) p = 10 bar Pilot pressure pt in bar etting range 20 15 10 4 0 0,5 1,0 isplacement Circuit diagram: H1, H5 Circuit diagram: H2, H6 A A 1 R 1 R A11VO 11/48 rueninghaus Hydromatik
... Power Control with Override C Override with cross-sensing Circuit diagram: C Cross-sensing is a total power control (high pressure dependent) which links two A11VO pumps of equal size with C control in power control. p H If one pump is running at operating pressures below the set start of control, the drive power not drawn, in a limit case up to 100%, is available to the other pump. Total drive power is thus distributed between two actuators as required. A Power released by pressure cut-off or other overrides is disregarded. emi cross-sensing function If C control is used on the first pump (A11VO) and another pump mounted on the through drive also with power control without crosssensing, the power required for the second pump is subtracted from the first pump in its setting. The second pump has priority in the total power setting. 1 R 3 High pressure dependent override Circuit diagram: 3 High pressure dependent power override is a total power control where the power setting is loaded by the operating pressure of an attached fixed displacement pump (port ). p H The A11VO can thus be set to 100% of the total drive power. The power setting of the A11VO is reduced in proportion to the loaddependent rise in the operating pressure of the fixed displacement pump. The fixed displacement pump has priority in the total power setting. A The measuring area for the power reduction is adapted to the displacement of the fixed displacement pump. 1 R LE1/2 Electric override (negative) In this case, in contrast to hydraulic power override, the power setting is loaded by a pilot current. This pilot current acts, via a proportional solenoid, against the power control setting spring. Higher pilot current =^ power decrease. irect current at 12V (E1) or 24V (E2) respectively is required to trigger the proportional solenoid. The mechanically set basic power setting can be varied by means of different pilot currents. If the pilot current signal is variably readjusted via a load limit sensing control, the power decrease of all the actuators is adapted to the possible power output of the diesel engine. Circuit diagram: LE1, LE2 A 1 R rueninghaus Hydromatik 12/48 A11VO
... Power Control with Override L1/2 Pilot pressure dependent override An external pilot pressure acts via port on the power control setting spring. The mechanically set basic power setting can be varied by means of different pilot pressure settings. If the pilot pressure signal is variably readjusted via a load limit sensing control, the power decrease of all the actuators is adapted to the possible power output of the diesel engine. The pilot pressure used for power control is generated by an external controller which is not part of the A11VO (see also sheet RE 95072, Electronic load limit sensing control for excavators, L). Circuit diagram: L1 A L1 Negative power override With negative power override L1, the force resulting from the pilot pressure acts against the power control setting spring, i.e. higher pilot pressure =^ power decrease. 1 R L2 Positive power override With positive power override L2, the force resulting from the pilot pressure supports the power control setting spring, i.e. higher pilot pressure =^ power increase. Circuit diagram: L2 A 1 R Controlling the power setting Operating pressure p (bar) isplacement p H C 3 I LE1/2 p t L2 L1 A11VO 13/48 rueninghaus Hydromatik
R Pressure Control R Pressure control The pressure control maintains constant pressure in a hydraulic system within its control range despite fluctuations in the flow required. The variable displacement pump delivers only the amount of hydraulic fluid needed by the actuators. If the operating pressure exceeds the pressure signal value set at the integral valve, the pump is automatically swivelled back and the closed loop error reduced. tarting position in unpressurised state: etting range 50 to 350 bar. Characteristic: R etting range p max Operating pressure p in bar 350 300 250 200 150 100 50 0 Flow q v in L/min max. 10 bar R Pressure control with load sensing The load sensing control works as a flow controller controlled by load pressure and co-ordinates the pump displacement to the quantity required by the actuator. The pump flow depends on the external orifice (control block, throttle valve) switched between the pump and the actuator, but is not affected by the load pressure over the whole range below the pressure signal value. The valve compares the pressure upstream of the orifice with the downstream pressure and keeps the pressure drop (differential pressure p) occurring here, and hence the flow, constant. If the differential pressure rises, the pump is swivelled back (direction ). If the differential pressure p drops, the pump is swivelled out (direction ) until balance is restored in the valve. p orifice = p pump - p actuator The setting range for p is between 14 bar and 25 bar. The standard setting is 18 bar (please state in clear text). The stand-by pressure in zero stroke mode (orifice closed) is slightly higher than the p setting. Pressure control overrides the load sensing control, i.e. the load sensing function is performed below the set pressure signal value. (1) The orifice (throttle valve) is not included in the supply. Circuit diagram: R Characteristic: R A Operating pressure p in bar 1 R Flow q v in L/min Circuit diagram: R (1) A 1 R rueninghaus Hydromatik 14/48 A11VO
R Pressure Control R Pressure remote control The pressure remote control enables the pressure control setting to be overridden by means of a separate pressure relief valve (1) and a lower pressure signal value can thus be set. etting range 50 to 350 bar. Alternatively, the system can be started at low operating pressures (stand-by pressure) by actuating a 2-2 way valve (2), also separately mounted. oth functions can be carried out separately or in conjunction (see circuit diagram). The external valves are not included in the supply. We recommend that the following is used as the separate pressure relief valve (1): H 6 (manual), see RE 25402. Characteristic: R RL Pressure control for parallel operation Pressure control RL is designed for pressure control of several A11VO axial piston pumps arranged in parallel. The pressure signal valve for all the pumps connected to the system can be preset by means of an external pressure relief valve (1). etting range 50 to 350 bar. Each pump can be disconnected from the system via a 3-2 way valve (2), also separately mounted. Check valves (3) should as a rule be provided in the main conduit (port A) or control line (port ). The external valves are not included in the supply. We recommend that the following is used as the separate pressure relief valve (1): H 6 (manual), see RE 25402. Circuit diagram : RL etting range p max Operating pressure p in bar 350 300 250 200 150 100 max. 10 bar (2) (1) (3) (3) 50 0 Flow q v in L/min Circuit diagram: R A (2) (1) max. 5m 1 R A 1 R A11VO 15/48 rueninghaus Hydromatik
H Hydraulic Control, Pilot Pressure ependent Pilot pressure dependent control allows the pump displacement to be infinitely adjusted in proportion to the pilot pressure applied to port (max. 40 bar). Control from to. As the pilot pressure rises, the pump swivels to a higher displacement. tart of control (at ), adjustable from 4 10 bar. tart of control should be stated in clear text when ordering. Pump starting position in unpressurised state: To swivel the pump from its starting position towards, a positioning pressure of 30 bar is needed (pilot pressure < start of control). The necessary positioning oil is taken from the operating pressure if this is > 30 bar. If the operating pressure is < 30 bar, the positioning oil has to be taken from the external positioning pressure available at port (> 30 bar). If the operating pressure is > 30 bar and > 0, no external positioning pressure is required. In this case the change-over valve should be removed from the pump before commissioning (see note in repair instructions RE 92500-R) and port should be closed. H Pilot pressure pt in bar etting range Pilot pressure pt in bar etting range Hydraulic control, pilot pressure dependent Characteristic: H1 Pilot pressure rise to p = 10 bar 20 15 10 4 35 30 25 20 15 10 4 0 0,5 1,0 isplacement Characteristic: H2 Pilot pressure rise to p = 25 bar 0 0,5 1,0 isplacement H. Hydraulic control with pressure cut-off Pressure cut-off corresponds to a pressure control which adjusts the pump displacement back to when the set pressure signal value is reached. This function overrides H control, i.e. below the pressure signal value, the pilot pressure dependent function is performed. The valve is integrated into the control housing and is permanently set to a pressure signal value at the factory. etting range 50 to 350 bar. Characteristic: H1, H2 Operating pressure p in bar 350 50 Integral pressure cut-off etting range isplacement max min Circuit diagram: H1, H2 Circuit diagram: H1, H2 A A 1 R 1 R rueninghaus Hydromatik 16/48 A11VO
EP Electric Control with Proportional olenoid Electric control with proportional solenoid allows the pump displacement to be infinitely set and programmed in proportion to the solenoid force or current strength. The control force at the control spool is applied by a proportional solenoid. irect current at 12V (EP1) or 24V (EP2) respectively is required to trigger the proportional solenoid (insulation IP 54). Control from to As the pilot current increases, the pump swivels to a higher displacement. tart of control at approx.: 400 ma (12 V) 200 ma (24 V) End of control at approx.: 1200 ma (12 V) 600 ma (24 V) tarting position in unpressurised state: To swivel the pump from its starting position towards, a positioning pressure of 30 bar is needed (pilot current < start of control). The necessary positioning oil is taken from the operating pressure if this is > 30 bar. If the operating pressure is < 30 bar, the positioning oil has to be taken from the external positioning pressure available at port (> 30 bar). If the operating pressure is > 30 bar and > 0, no external positioning pressure is required. In this case the change-over valve should be removed from the pump before commissioning (see note in repair instructions RE 92500-R) and port should be closed. Important: Pump with EP control should be fitted in the tank only if mineral hydraulic fluid is used and the oil temperature in the tank does not exceed 80 C. The following are available to trigger the proportional solenoid: Proportional amplifier PV (see RE 95023) Proportional amplifier V000 (see RE 29904) Chopper amplifier CV (see RE 95029) icrocontroller C (see RE 95050) EP. Electric control with pressure cut-off Pressure cut-off corresponds to a pressure control which adjusts the pump displacement back to when the set pressure signal value is reached. This function overrides EP control, i.e. below the pressure signal value, the pilot current dependent function is performed. The valve is integrated into the control housing and is permanently set to a pressure signal value at the factory. etting range 50 to 350 bar. Characteristic: EP2 Characteristic: EP2 Pilot current I in ma 800 700 600 500 400 300 200 100 0 0,5 1,0 isplacement Operating pressure p in bar 350 50 Integral pressure cut-off etting range isplacement max min Circuit diagram: EP Circuit diagram: EP2 A A 1 R 1 R A11VO 17/48 rueninghaus Hydromatik
Unit imensions ize 40 C: Power control with pressure cut-off, cross-sensing control C and load sensing control View Clockwise rotation (Anti-clockwise rotation) etail V 10; 17 deep V () (A) R Flange AE J744 101-2 () C W 1 etail W 12; 20 deep haft ends plined shaft IN 5480 W35x2x30x16x9g plined shaft ANI 92.1a-1976 1in 156/32P 1 ) (AE J744 25-4 (-)) P Cyl. shaft with key IN 6885 A10x8x56 T plined shaft ANI 92.1a-1976 1 1/4in 142/24P 1 ) (AE J744 32-4 (C)) Ports A, ervice port AE 3/4; 420 bar (6000 psi) High pressure series uction port AE 2; 210 bar (3000 psi) tandard series, Air bleed, tank 22x1,5; 14 deep R Air bleed, oil drain 22x1,5; 14 deep 1 easuring point, regulating chamber 12x1,5; 12 deep easuring point, service port 12x1,5; 12 deep Pilot port 14x1,5; 12 deep for version with load sensing () and remote pressure ct-off control () Pilot port 14x1,5; 12 deep for version with stroke limiter (H...), 2-stage pressure cut-off (E) and H Pilot port 14x1,5; 12 deep for version with cross-sensing (C) and power override (3, L1) Port for positioning pressure (controller) 14x1,5; 12 deep for version with stroke limiter (H.., U2), H and EP with screwed fitting E10 - PL (otherwise port closed) 1 ) 30 pressure angle, flat root, side fit, tolerance class 5 rueninghaus Hydromatik 18/48 A11VO
Unit imensions ize 40 H1/H5: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H2/H6: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H1/5 H2/6 U1/U2: Power control with pressure cut-off and electric stroke limiter (function: to ) 3: Power control with high pressure dependent override, pressure cut-off and load sensing control U1/2 3 L1E: Power control with pilot pressure dependent override (negative) and 2-stage pressure cut-off L2E: Power control with pilot pressure dependent override (positive) and 2-stage pressure cut-off E L1 A11VO 19/48 rueninghaus Hydromatik
Unit imensions ize 40 H1/H2: Hydraulic, pilot pressure dependent control with pressure cut-off EP1/EP2: Electric control (proportional solenoid) with pressure cutoff H1/2 EP1/2 R/R: Pressure control with load sensing Pressure remote control / R rueninghaus Hydromatik 20/48 A11VO
Unit imensions ize 60 C: Power control with pressure cut-off, cross-sensing control C and load sensing control View Clockwise rotation (Anti-clockwise rotation) 10; 17 deep () (A) Flange AE J744 127-2 (C) R W 1 C etail W 12; 20 deep haft ends plined shaft IN 5480 W35x2x30x16x9g plined shaft ANI 92.1a-1976 1 1/4in 142/24P 1 ) (AE J744 32-4 (C)) P Cyl. shaft with key IN 6885 A10x8x56 T plined shaft ANI 92.1a-1976 1 3/8in 216/32P 1 ) Ports A, ervice port AE 3/4; 420 bar (6000 psi) High pressure series uction port AE 2; 210 bar (3000 psi) tandard series, Air bleed, tank 22x1,5; 14 deep R Air bleed, oil drain 22x1,5; 14 deep 1 easuring point, regulating chamber 12x1,5; 12 deep easuring point, service port 12x1,5; 12 deep Pilot port 14x1,5; 12 deep for version with load sensing () and remote presure cut-off control () Pilot port 14x1,5; 12 deep for version with stroke limiter (H...), 2-stage pressure cut-off (E) and H Pilot port 14x1,5; 12 deep for version with cross-sensing (C) and power override (3, L1) Port for positioning pressure (controller) 14x1,5; 12 deep for version with stroke limiter (H.., U2), H and EP with screwed fitting E10 - PL (otherwise port closed) 1 ) 30 pressure angle, flat root, side fit, tolerance class 5 A11VO 21/48 rueninghaus Hydromatik
Unit imensions ize 60 H1/H5: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H2/H6: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H1/5 H2/6 U1/U2: Power control with pressure cut-off and electric stroke limiter (function: to ) 3: Power control with high pressure dependent override, pressure cut-off and load sensing control U1/2 3 L1E: Power control with pilot pressure dependent override (negative) and 2-stage pressure cut-off L2E: Power control with pilot pressure dependent override (positive) and 2-stage pressure cut-off E L1 rueninghaus Hydromatik 22/48 A11VO
Unit imensions ize 60 H1/H2: Hydraulic, pilot pressure dependent control with pressure cut-off EP1/EP2: Electric control (proportional solenoid) with pressure cutoff H1/2 EP1/2 R/R: Pressure control with load sensing Pressure remote control / R A11VO 23/48 rueninghaus Hydromatik
Unit imensions ize 75 C: Power control with pressure cut-off, cross-sensing control C and load sensing control View Clockwise rotation (Anti-clockwise rotation) 12; 17 deep () (A) Flange AE J744 152-4 () R W 1 C etail W 12; 17 deep haft ends plined shaft IN 5480 W40x2x30x18x9g plined shaft ANI 92.1a-1976 1 1/4in 142/24P 1 ) (AE J744 32-4 (C)) P Cyl. shaft with key IN 6885 A12x8x80 T plined shaft ANI 92.1a-1976 1 3/8in 216/32P 1 ) Ports A, ervice port AE 1; 420 bar (6000 psi) High pressure series uction port AE 2 1/2; 210 bar (3000 psi) tandard series, Air bleed, tank 22x1,5; 14 deep R Air bleed, oil drain 22x1,5; 14 deep 1 easuring point, regulating chamber 12x1,5; 12 deep easuring point, service port 12x1,5; 12 deep Pilot port 14x1,5; 12 deep for version with load sensing () and remote presure cut-off control () Pilot port 14x1,5; 12 deep for version with stroke limiter (H...), 2-stage pressure cut-off (E) and H Pilot port 14x1,5; 12 deep for version with cross-sensing (C) and power override (3, L1) Port for positioning pressure (controller) 14x1,5; 12 deep for version with stroke limiter (H.., U2), H and EP with screwed fitting E10 - PL (otherwise port closed) 1 ) 30 pressure angle, flat root, side fit, tolerance class 5 rueninghaus Hydromatik 24/48 A11VO
Unit imensions ize 75 H1/H5: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H2/H6: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H1/5 H2/6 U1/U2: Power control with pressure cut-off and electric stroke limiter (function: to ) 3: Power control with high pressure dependent override, pressure cut-off and load sensing control U1/2 3 L1E: Power control with pilot pressure dependent override (negative) and 2-stage pressure cut-off L2E: Power control with pilot pressure dependent override (positive) and 2-stage pressure cut-off E L1 A11VO 25/48 rueninghaus Hydromatik
Unit imensions ize 75 H1/H2: Hydraulic, pilot pressure dependent control with pressure cut-off EP1/EP2: Electric control (proportional solenoid) with pressure cutoff H1/2 EP1/2 R/R: Pressure control with load sensing Pressure remote control / R rueninghaus Hydromatik 26/48 A11VO
Unit imensions ize 95 C: Power control with pressure cut-off, cross-sensing control C and load sensing control View Clockwise rotation (Anti-clockwise rotation) 12; 17 deep () (A) Flange AE J744 152-4 () R W 1 C etail W 16; 24 deep haft ends plined shaft IN 5480 W45x2x30x21x9g plined shaft ANI 92.1a-1976 1 3/4in 13T 8/16P 1 ) (AE J744 44-4 ()) P Cyl. shaft with key IN 6885 A14x9x80 Ports A, ervice ports AE 1; 420 bar (6000 psi) High pressure series uction port AE 3; 140 bar (2000 psi) tandard series, Air bleed, tank 26x1,5; 16 deep R Air bleed, oil drain 26x1,5; 16 deep 1 easuring point, regulating chamber 12x1,5; 12 deep easuring point, service port 12x1,5; 12 deep Pilot port 14x1,5; 12 deep for version with load sensing (), RL and remote pressure cut-off control () Pilot port 14x1,5; 12 deep for version with stroke limiter (H...), 2-stage pressure cut-off (E) and H Pilot port 14x1,5; 12 deep for version with cross-sensing (C) and power override (3, L1) Port for positioning pressure (controller) 14x1,5; 12 deep for version with stroke limiter (H.., U2), H and EP with screwed fitting E10 - PL (otherwise port closed) 1 ) 30 pressure angle, flat root, side fit, tolerance class 5 A11VO 27/48 rueninghaus Hydromatik
Unit imensions ize 95 H1/H5: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H2/H6: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H1/5 H2/6 U1/U2: Power control with pressure cut-off and electric stroke limiter (function: to ) 3: Power control with high pressure dependent override, pressure cut-off and load sensing control U1/2 3 L1E: Power control with pilot pressure dependent override (negative) and 2-stage pressure cut-off L2E: Power control with pilot pressure dependent override (positive) and 2-stage pressure cut-off E L1 rueninghaus Hydromatik 28/48 A11VO
Unit imensions ize 95 LE1/LE2: Power control with electric override (negative) and load sensing control LE2 H1/H2: Hydraulic, pilot pressure dependent control with pressure cut-off EP1/EP2: Electric control (proportional solenoid) with pressure cutoff H1/2 EP1/2 R/R: Pressure control with load sensing Pressure remote control RL: Pressure control for parallel operation / R R A11VO 29/48 rueninghaus Hydromatik
Unit imensions ize 130 C: Power control with pressure cut-off, cross-sensing control C and load sensing control View Clockwise rotation (Anti-clockwise rotation) 12; 17 deep () (A) Flange AE J744 152-4 () R 1 W C etail W 16; 24 deep haft ends plined shaft IN 5480 W50x2x30x24x9g plined shaft ANI 92.1a-1976 1 3/4in 13T 8/16P 1 ) (AE J744 44-4 ()) P Cyl. shaft with key IN 6885 A14x9x80 Ports A, ervice port (without charging pump) AE 1; 420 bar (6000 psi) High pressure series uction port (without charging pump) AE 3; 140 bar (2000 psi) tandard series, Air bleed, tank 26x1,5; 16 deep R Air bleed, oil drain 26x1,5; 16 deep 1 easuring point, regulating chamber 12x1,5; 12 deep easuring point, service port 12x1,5; 12 deep Pilot port 14x1,5; 12 deep for version with load sensing (), RL and remote pressure cut-off control () Pilot port 14x1,5; 12 deep for version with stroke limiter (H...), 2-stage pressure cut-off (E) and H Pilot port 14x1,5; 12 deep or version with cross-sensing (C) and power override (3, L1) Port for positioning pressure (controller) 14x1,5; 12 deep for version with stroke limiter (H.., U2), H and EP with screwed fitting E10 - PL (otherwise port closed) 1 ) 30 pressure angle, flat root, side fit, tolerance class 5 rueninghaus Hydromatik 30/48 A11VO
Unit imensions ize 130 H1/H5: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H2/H6: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H1/5 H2/6 U1/U2: Power control with pressure cut-off and electric stroke limiter (function: to ) 3: Power control with high pressure dependent override, pressure cut-off and load sensing control U1/2 3 L1E: Power control with pilot pressure dependent override (negative) and 2-stage pressure cut-off L2E: Power control with pilot pressure dependent override (positive) and 2-stage pressure cut-off E L1 A11VO 31/48 rueninghaus Hydromatik
Unit imensions ize 130 LE1/LE2: Power control with electric override (negative) and load sensing control LE2 H1/H2: Hydraulic, pilot pressure dependent control with pressure cut-off EP1/EP2: Electric control (proportional solenoid) with pressure cutoff H1/2 EP1/2 R/R: Pressure control with load sensing Pressure remote control RL: Pressure control for parallel operation / R R rueninghaus Hydromatik 32/48 A11VO
Unit imensions ize 130 Version with charging pump A11VLO130: Power control with pressure cut-off and load sensing control View Clockwise rotation (Anti-clockwise rotation) 14; 19 deep () (A) Flange AE J744 152-4 () R W 1 etail W 16; 24 deep Ports A, ervice port (with charging pump) AE 1 1/4; 420 bar (6000 psi) High pressure series uction port (with charging pump) AE 3; 140 bar (2000 psi) tandard series, Air bleed, tank 26x1,5; 16 deep R Air bleed, oil drain 26x1,5; 16 deep 1 easuring point, regulating chamber 12x1,5; 12 deep easuring point, service port 12x1,5; 12 deep Pilot port 14x1,5; 12 deep for version with load sensing (), RL and remote pressure cut-off control () Pilot port 14x1,5; 12 deep for version with stroke limiter (H...), 2-stage pressure cut-off (E) and H Pilot port 14x1,5; 12 deep or version with cross-sensing (C) and power override (3, L1) Port for positioning pressure (controller) 14x1,5; 12 deep for version with stroke limiter (H.., U2), H and EP with screwed fitting E10 - PL (otherwise port closed) A11VO 33/48 rueninghaus Hydromatik
Unit imensions ize 190 C: Power control with pressure cut-off, cross-sensing control C and load sensing control View Clockwise rotation (Anti-clockwise rotation) 16; 21 deep () (A) Flange AE J744 165-4 (E) R W 1 C etail W haft ends plined shaft IN 5480 W50x2x30x24x9g plined shaft ANI 92.1a-1976 1 3/4in 13T 8/16P 1 ) (AE J744 44-4 ()) P Cyl. shaft with key IN 6885 A16x10x100 T plined shaft ANI 92.1a-1976 2in 15T 8/16P 1 ) (AE J744 50-4 (F)) 16; 24 deep Ports A, ervice port (without charging pump) AE 1 1/2; 420 bar (6000 psi) High pressure series uction port (without charging pump) AE 3 1/2; 35 bar (500 psi) tandard series, Air bleed, tank 33x2; 16 deep R Air bleed, oil drain 33x2; 16 deep 1 easuring point, regulating chamber 12x1,5; 12 deep easuring point, service port 12x1,5; 12 deep Pilot port 14x1,5; 12 deep for version with load sensing (), RL and remote pressure cut-off control () Pilot port 14x1,5; 12 deep for version with stroke limiter (H...), 2-stage pressure cut-off (E) and H Pilot port 14x1,5; 12 deep or version with cross-sensing (C) and power override (3, L1) Port for positioning pressure (controller) 14x1,5; 12 deep for version with stroke limiter (H.., U2), H and EP with screwed fitting E10 - PL (otherwise port closed) 1 ) 30 pressure angle, flat root, side fit, tolerance class 5 rueninghaus Hydromatik 34/48 A11VO
Unit imensions ize 190 H1/H5: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H2/H6: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H1/5 H2/6 U1/U2: Power control with pressure cut-off and electric stroke limiter (function: to ) 3: Power control with high pressure dependent override, pressure cut-off and load sensing control U1/2 3 L1E: Power control with pilot pressure dependent override (negative) and 2-stage pressure cut-off L2E: Power control with pilot pressure dependent override (positive) and 2-stage pressure cut-off E L1 E L2 A11VO 35/48 rueninghaus Hydromatik
Unit imensions ize 190 LE1/LE2: Power control with electric override (negative) and load sensing control LE2 H1/H2: Hydraulic, pilot pressure dependent control with pressure cut-off EP1/EP2: Electric control (proportional solenoid) with pressure cutoff H1/2 EP1/2 R/R: Pressure control with load sensing RL: Pressure control for parallel operation Pressure remote control / R R rueninghaus Hydromatik 36/48 A11VO
Unit imensions ize 190 Version with charging pump A11VLO190: Power control with pressure cut-off and Load sensing control View Clockwise rotation (Anti-clockwise rotation) 16; 21 deep () (A) Flange AE J744 165-4 (E) R W 1 etail W 16; 21 deep Ports A, ervice port (with charging pump) AE 1 1/2; 420 bar (6000 psi) High pressure series uction port (with charging pump) AE 3 1/2; 35 bar (500 psi) tandard series, Air bleed, tank 33x2; 16 deep R Air bleed, oil drain 33x2; 16 deep 1 easuring point, regulating chamber 12x1,5; 12 deep easuring point, service port 12x1,5; 12 deep Pilot port 14x1,5; 12 deep for version with load sensing (), RL and remote pressure cut-off control () Pilot port 14x1,5; 12 deep for version with stroke limiter (H...), 2-stage pressure cut-off (E) and H Pilot port 14x1,5; 12 deep or version with cross-sensing (C) and power override (3, L1) Port for positioning pressure (controller) 14x1,5; 12 deep for version with stroke limiter (H.., U2), H and EP with screwed fitting E10 - PL (otherwise port closed) A11VO 37/48 rueninghaus Hydromatik
Unit imensions ize 260 C: Power control with pressure cut-off, cross-sensing control C and load sensing control View Clockwise rotation (Anti-clockwise rotation) 16; 21 deep () (A) Flange AE J744 165-4 (E) R W 1 etail W C haft ends plined shaft IN 5480 W60x2x30x28x9g plined shaft ANI 92.1a-1976 1 3/4in 13T 8/16P 1 ) (AE J744 44-4 ()) P Cyl. shaft with key IN 6885 A18x11x100 T plined shaft ANI 92.1a-1976 2 1/4in 17T 8/16P 1 ) 16; 21 deep Ports A, ervice port (without charging pump) AE 1 1/2; 420 bar (6000 psi) High pressure series uction port (without charging pump) AE 3 1/2; 35 bar (500 psi) tandard series, Air bleed, tank 33x2; 16 deep R Air bleed, oil drain 33x2; 16 deep 1 easuring point, regulating chamber 12x1,5; 12 deep easuring point, service port 12x1,5; 12 deep Pilot port 14x1,5; 12 deep for version with load sensing (), RL and remote pressure cut-off control () Pilot port 14x1,5; 12 deep for version with stroke limiter (H...), 2-stage pressure cut-off (E) and H Pilot port 14x1,5; 12 deep or version with cross-sensing (C) and power override (3, L1) Port for positioning pressure (controller) 14x1,5; 12 deep for version with stroke limiter (H.., U2), H and EP with screwed fitting E10 - PL (otherwise port closed) 1 ) 30 pressure angle, flat root, side fit, tolerance class 5 rueninghaus Hydromatik 38/48 A11VO
Unit imensions ize 260 H1/H5: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H2/H6: Power control with pressure cut-off and hydraulic stroke limiter (function: to ) H1/5 H2/6 U1/U2: Power control with pressure cut-off and electric stroke limiter (function: to ) 3: Power control with high pressure dependent override, pressure cut-off and load sensing control U1/2 3 L1E: Power control with pilot pressure dependent override (negative) and 2-stage pressure cut-off L2E: Power control with pilot pressure dependent override (positive) and 2-stage pressure cut-off E L1 E L2 A11VO 39/48 rueninghaus Hydromatik
Unit imensions ize 260 LE1/LE2: Power control with electric override (negative) and load sensing control LE2 H1/H2: Hydraulic, pilot pressure dependent control with pressure cut-off EP1/EP2: Electric control (proportional solenoid) with pressure cutoff H1/2 EP1/2 R/R: Pressure control with load sensing RL: Pressure control for parallel operation Pressure remote control / R R rueninghaus Hydromatik 40/48 A11VO
Unit imensions ize 260 Version with charging pump A11VLO260: Power control with pressure cut-off and Load sensing control View Clockwise rotation (Anti-clockwise rotation) 16; 21 deep () (A) Flange AE J744 165-4 (E) R W 1 etail W 16; 21 deep Ports A, ervice port (with charging pump) AE 1 1/2; 420 bar (6000 psi) High pressure series uction port (with charging pump) AE 4; 35 bar (500 psi) tandard series, Air bleed, tank 33x2; 16 deep R Air bleed, oil drain 33x2; 16 deep 1 easuring point, regulating chamber 12x1,5; 12 deep easuring point, service port 12x1,5; 12 deep Pilot port 14x1,5; 12 deep for version with load sensing (), RL and remote pressure cut-off control () Pilot port 14x1,5; 12 deep for version with stroke limiter (H...), 2-stage pressure cut-off (E) and H Pilot port 14x1,5; 12 deep or version with cross-sensing (C) and power override (3, L1) Port for positioning pressure (controller) 14x1,5; 12 deep for version with stroke limiter (H.., U2), H and EP with screwed fitting E10 - PL (otherwise port closed) A11VO 41/48 rueninghaus Hydromatik