Brueninghaus Hydromatik Uchida Rexroth A2V pump
Hydraulic Axial piston pump A2V250, A2V355, A2V500, A2V1000
Closed circuit, semi-closed or open circuit
Control device: OV, HD, HW, HM, HS, HSK, EO, EOK, EL, MA, DRH, DRE.
OV= without control
HD= Hydraulic adjustment, pressure dependent
HW= Hydraulic adjustment, stroke dependent
HM= Hydraulic adjustment, volume dependent
HS= Hydraulic adjustment, volume dependent: for servo valve attachment
HSK= Hydraulic adjustment, volume dependent: for servo and short-circuit valve attachment
EO= Electronic adjustment
EOK= Electronic adjustment with short-circuit valve
EL= Electronic adjustment, electro-mechanical
MA= Manual adjustment
DRH1= hydraulically actuated pressure regulator
DRH2= hydraulically actuated pressure regulator with relief
DRH3= hydraulically actuated pressure regulator with two control points
DRH4= hydraulically actuated pressure regulator with two control points and relief
DRH5= hydraulically actuated pressure regulator with three control points
DRE= Pressure regulator electro-hydraulic, the use of liquids to transmit force and energy actuation
Axial piston unit of bent axis design with variable displacement, for hydrostatic drives in closed and semi-closed, and open circuits. Maximum flow is proportional to the drive speed an displacement and is infinitely variable at constant drive speed.
Comprehensive control programme for every control and regulating function.
Special Features of Series 5:
New, simplified high performance rotary group with enhanced technical data and well-proven spherical control area.
Housed pump for closed circuit.
Heavy duty rolling bearings for intermittent high pressure operation
For continuous duty at high pressures, hydrostatic bearings are available.
Operation on fire-resistant fluids is possible, improved port plate design and compact design reduces noise level by 5 dBA.
Complete primary units with all auxiliary devices for closed circuits.
Before starting project planning, please refer to our data sheets RE 90220 (mineral oil), RE 90221 (environmentally acceptable hydraulic fluids) and RE 90223 (HF hydraulic fluids) for detailed information regarding the choice of hydraulic fluids and application conditions.
Details regarding the choice of hydraulic fluid
The correct choice of hydraulic fluid requires knowledge of the operating temperature in relation to the ambient temperature, in an open circuit the tank temperature. The hydraulic fluid should be chosen so that the operating viscosity in the operating temperature range is within the optimum range (νopt.) – The shaded area of the selection diagram. We recommended that the higher viscosity class be selected in each case. Example: At an ambient temperature of X°C, an operating temperature of 60°C is set. In the optimum viscosity range (νopt., shaded area) this corresponds to the viscosity classes VG 46 or VG 68; to be selected: VG 68.
Note: The case drain temperature, which is affected by pressure and speed, is always higher than the tank temperature. At no point in the system may the temperature be higher than 90°C. If the above conditions cannot be maintained due to extreme operating parameters, please contact us.
|Details model of hydraulic A2V pump|