Axial Piston Variable Pump A11VO

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.

Product parameter of Axial Piston Variable Pump A11VO

•Operating pressure range

◇Inlet-----Absolute pressure at port S (suction port)

Version without charge pump

Pabs min---------- 0.8 bar

Pabs max---------- 30 bar

If the pressure is > 5 bar, please ask Huade Hydraulic.

Version with charge pump

Pabs min---------- 0.6 bar

Pabs max---------- 2 bar

◇Maximum permissible speed (speed limit)

Permissible speed by increasing the inlet pressure pabs at the suction port S or at Vg ≤Vg max

◇Outlet ----Pressure at port A or B

Nominal pressure pN---------- 350 bar

Maximum pressure Pmax ----------400 bar

Nominal pressure: Max.design pressure at which fatigue strength is ensured

Maximum pressure: Max. operating pressure which is permissible for short-term(t <1s).

◇Minimum operating pressure

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).

◇Case drain pressure

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℃.

•Note:

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.

Product Feature And Application of Axial Piston Variable Pump A11VO

Features:

▶Variable axial piston pump of swash plate design for hydrostatic drives in open circuit hydraulic system.

▶Designed primarily for use in mobile applications.

▶The pump operates under self-priming conditions, with tank pressurization, or with an optional built-in charge pump(impeller).

▶A comprehensive range of control options is available matching any application requirement.

▶Power control option is externally adjustable, even when the pump is running,

▶The through drive is suitable for adding gear pumps and axial piston pumps up to the same, i.e. 100/% through drive.

▶The output flow is proportional to the drive speed and infinitely variable between qv max and qv min = 0.

Application:

Huade’s axial piston variable pump A11VO is widely used in engineering machinery and light industrial equipment, iron and steel metallurgy and mining machinery, ships, civil aviation ground equipment, petroleum and petrochemical machinery, construction and walking machinery.