Huade brand A11VO swash plate axial piston variable pump is used for hydrostatic transmission in open circuit hydraulic systems. The flow rate of this axial piston pump is proportional to the transmission speed and displacement. By adjusting the swash plate angle, the flow rate can be changed steplessly. The A11VO pump can match Rexroth’s in performance.
◇Inlet—–Absolute pressure at port S (suction port)
If the pressure is > 5 bar, please ask Huade Hydraulic.
◇Maximum permissible speed (speed limit)
Permissible speed by increasing the inlet pressure pabs at the suction port S or at Vg ≤Vg max
Nominal pressure: Max.design pressure at which fatigue strength is ensured
Maximum pressure: Max. operating pressure which is permissible for short-term(t <1s).
A minimum operating pressure pB min is required in the pump service line depending on the speed, the swivel angle and the displacement (see diagram).
The case drain pressure at the ports T1 and T2 may be a maximum of 1.2 bar higher than the inlet pressure at the port S but not higher than PL abs. max ————–2 bar.
An unrestricted, full size case drain line directly to tank is required.
◇Temperature range of the shaft seal ring
The FKM shaft seal ring is permissible for case drain temperatures of -25℃to +115℃.
For applications below-25°C, an NBR shaft seal ring is necessary (permissible temperature range: -40°C to +90°C).
State NBR shaft seal ring in clear text in the order.
