Working pressure range  
Pressure at working port B  
Nominal pressure pnom  
Maximum pressure pmax  
Definition  
280 bar  
350 bar  
The nominal pressure corresponds to the maximum design pressure.  
The maximum pressure corresponds to the maximum working pressure within the  
single operating period. The sum of the single operating periods must not exceed  
the total operating period.  
Single operating period  
Total operating period  
2 ms  
300 h  
10 bar1)  
Minimum pressure on the high-pressure side (B) which is required in order to  
Minimum pressure pB abs  
prevent damage to the axial piston unit.  
(high-pressure side)  
16000 bar/s  
Maximum permissible speed of pressure build-up and reduction during a pressure  
change across the entire pressure range.  
Rate of pressure change RA max  
Pressure at suction port S (inlet)  
Minimum pressure  
pS min  
Standard  
0.8 bar absolute  
Minimum pressure at suction port S (inlet) that is required in order to avoid damage  
to the axial piston unit. The minimum pressure depends on the rotational speed and  
displacement of the axial piston unit.  
10 bar  
Maximum pressure pS max  
Case pressure at port L, L1  
Maximum pressure pL max  
2 bar1) absolute  
Maximum 0.5 bar higher than inlet pressure at port S,  
but not higher than pL max  
.
A case drain line to the reservoir is required.  
▼ Rate of pressure change RA max  
Notice  
Working pressure range valid when using hydraulic fluids  
pnom  
based on mineral oils. Please contact us for values for  
other hydraulic fluids.  
∆t  
∆p  
Minimum permissible inlet pressure at suction port S  
with speed increase  
In order to avoid damage to the pump (cavitation), a mini-  
mum inlet pressure must be guaranteed at suction port S.  
The minimum inlet pressure level depends on the rotational  
speed and the displacement of the variable pump.  
Time t  
▼ Pressure definition  
t2  
Single operating period  
t1  
tn  
Maximum pressure pmax  
Nominal pressure pnom  
Minimum pressure (high-pressure side)  
Displacement Vg/Vg max  
Time t  
During continuous operation in overspeed over nnom  
,
Total operating period = t1 + t2 + ... + tn  
a reduction in operational service life is to be expected  
due to cavitation erosion.  
1) Other values on request  
Over the years, we have been committed to the production and research of Rexroth A10VSO Series 31 Axial piston variable pump .We  
not only provide high quality machinery and accessories for sale on the market, we also care about customers' profits and the impact of  
machinery on the environment.If you want to know more details, please contact us immediately!  
We mainly operating series as the following series：Rexroth A A10VSO 18 Pump