Liebherr DPVD Axial Piston Hydraulic Pump
HYDRAULIC HUB is leading supplier and repair specialist of the Liebherr DPVD Axial Piston Hydraulic Pump from Delhi, India. These pump series features variable displacement double pump DPVD, inverse piston, the pump manages large swing angles and can be used with nominal pressures up to 400 bar.
The Liebherr DPVD Axial Piston Hydraulic Pump are designed in double axial pistons as swashplates for open circuits. They comes in nominal sizes from 108–108 to 165–165. The nominal pressure of the pumps is 5,802 psi (400 bar) and the maximum pressure is 6,527 psi (450 bar).
Due to the double pump, they connect the hydraulic lines is greatly, because of simplified by a shared suction port. It also has an inverse drive with a 22° swivel angle, which is very efficient and has a very high power density.
The Liebherr DPVD Axial Piston Hydraulic Pump is appreciated with its innovative technology. Due to the inverse piston, the pump is able to swing large angles and can be used with nominal pressures up to 400 bar.
Technical Data
| Normal size | 108 | 165 | 550 | |||
| Nominal pressure [pN] [bar] | 400 | 400 | 380 | |||
| Maximum pressure [pmax] [bar] | 450 | 450 | 420 | |||
| Displacement volume | Vg max | cm3 | 107.7 | 167.8 | 550 | |
| Vg min | cm3 | 0 – 15% of Vg max < 15% of Vg max on request |
82 | |||
| Volume flow at Vg max and nmax | qvmax | 1/min | 237 | 352 | 798 | |
| Min. speed at Vg max and 1 bar at the suction port | nmax | rpm | 50 | 500 | ||
| Max. speed at Vg max and 1 bar at the suction port | nmax | rpm | 2200 | 2100 | 1450 | |
| Drive torque at Vg max and Δp = 400 bar | Mmax | Nm | 686 | 1068 | 3330 | |
| Drive power at qv max and Δp = 400 bar | Pmax | kW | 158 | 235 | 505 | |
| Driving gear moment of inertia | JTW | kgm2 | o.o313 | 0062 | o.560 | |
| Weight (approx.) | m | kg | 116 | 190 | 657 | |
| Torsional rigidity | Driving shaft code “1” (DIN 5480) | Nm/rad kNm/rad |
Values upon request | 980 | ||
| Driving shaft code “2” (ANSI B92.1a) | 164 | |||||
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