Liebherr DPVD Axial Piston Hydraulic Pump

DPVD Liebherr Hydraulic Axial Piston Pump

DPVD LIEBHERR HYDRAULIC AXIAL PISTON VARIABLE DISPLACEMENT DOUBLE PUMP

Liebherr DPVD Axial Piston Hydraulic Pump

Rexton Hydraulic 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.

Variable Displacement, Open Circuit, Double Pump
Series DPVD LIEBHERR HYDRAULIC PUMP
Model Sizes : DPVD108 / DPVD165 / DPVD550
Nominal Pressure 380 / 400 bar 5,802 psi
Maximum Pressure 420 / 450 bar 6,526.70 psi

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Description
Technical Specifications
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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 Specifications

Specifications

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
Displacement volume		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
Torsional rigidity	Driving shaft code “2” (ANSI B92.1a)	Nm/rad kNm/rad		Values upon request		164