New Aftermarket A4VSO500DR/30R-PPH25N00 Axial Piston Pump

Model code — A4VSO500DR/30R-PPH25N00

Decoded position by position against the RE 92050 model code table (14 positions). Positions 09–14 form one continuous options string without separators; this unit reads as follows:

Position	Value	Meaning
01 Hydraulic fluid	—	omitted — mineral oil + HFD
02 Unit	A4VS	swashplate variable pump (350 bar nominal / 400 bar peak)
03 Boost pump	—	omitted — no boost pump (L only on NG750)
04 Mode	O	open circuit
05 Size (NG)	500	nominal size NG500
06 Controller	DR	pressure control (constant pressure)
07 Design series	30	Series 30 (current main series)
08 Rotation	R	clockwise, viewed from the drive shaft end
09 Seal material	P	NBR body with PTFE shaft seal (for HFA / HFB / HFC)
10 Drive shaft	P	straight key shaft, DIN 6885
11 Mounting flange	H	ISO 3019-2 metric 8-hole (NG500 / 750 / 1000)
12 Work ports	25	as 13 plus a second pressure port B1 on the opposite side with cover plate
13 Through-drive flange	N00	no through drive
14 Filtration	—	omitted — no filter

Note: P in position 09 is a seal code, while P in position 10 is a straight key shaft — the same letter has two different meanings. H in position 11 is the ISO 3019-2 eight-hole flange (NG500 / 750 / 1000).

Product overview

New aftermarket A4VSO500DR/30R-PPH25N00 axial piston pump. Swashplate-type variable displacement pump for open circuit, from the A4VSO Series 10/11/30 family. Size NG500, geometric displacement 500 cm3/rev.

Nominal pressure 350 bar, peak pressure 400 bar. Maximum drive speed 1320 rpm at Vg max; flow approx. 581 L/min at 1500 rpm. Swashplate design with low noise level and short response times; suitable for mineral oil and HFD fluids (FKM seals version on request).

This listing covers the A4VSO 500 DR pressure-controller version. Supply is as a new aftermarket replacement unit, quality checked before shipping. Because the full model code defines mounting, seals, shaft and ports, please send us your complete nameplate code before ordering and we will confirm the exact configuration.

Control: DR pressure controller

The DR control limits the pump pressure to the set value on the pressure port B. In its basic position the swashplate is at maximum displacement; when the set pressure is reached, the pump swivels back to approximately zero displacement and only delivers the flow required to maintain pressure.

Other sizes

Other A4VSO sizes and controls are available on request – sizes NG40 to NG500 and controls such as DFR, LR, MA, EM, HS and DFE1. Send us your requirements.

Other models on this size

This NG500 pump is also available in these variants:

• A4VSO355DFR/30R-FPB13N00 — DFR pressure and flow control (load sensing)
• A4VSO355DR/30R-PPB13N00 — DR pressure control
• A4VSO355DR/30R-VPB13N00 — DR pressure control
• A4VSO355DR/30R-PZB25N00 — DR pressure control

Series overview: A4VSO Piston Pump. Other sizes and controls (NG40 to NG1000): Piston Pumps.

Not sure what you need? Tell us your machine model or send the full code from the nameplate and we will confirm the correct configuration. Contact us