🔍
Axial Variable Displacement Pump A20VO
Axial Variable Displacement Pump A20VO
Axial Variable Displacement Pump A20VO
Axial Variable Displacement Pump A20VO
Axial Variable Displacement Pump A20VO
Axial Variable Displacement Pump A20VO
  1. Axial Variable Displacement Pump A20VO
  2. Axial Variable Displacement Pump A20VO
  3. Axial Variable Displacement Pump A20VO
  4. Axial Variable Displacement Pump A20VO
  5. Axial Variable Displacement Pump A20VO
  6. Axial Variable Displacement Pump A20VO

Axial Variable Displacement Pump A20VO

1.Variable pump with two axial piston rotary groups in swashplate design for use in open circuit hydrostatic drives

2.For use in mobile and stationary applications

3.The pump consists of proven components from the A11VO , A10VO/53  or A4VSO variable pumps

4.The pump operates under self-priming condition, with tank pressurisation or with charge pump (sizes 190…260)

5.A wide variety of controls are available

Descripción detallada

This variable pump features a swash plate construction equipped with two independent axial piston rotary groups, which is professionally designed and optimized for open circuit hydrostatic transmission drive systems. It is perfectly applicable to a full range of mobile engineering machinery as well as fixed industrial stationary equipment, covering diversified industrial and engineering application scenarios. The pump is assembled with fully proven, mature standard components inherited from the classic A11VO, A10VO/53 and A4VSO series variable pumps, guaranteeing reliable operation, stable quality and good interchangeability. It can run steadily in self-priming working condition, and also supports operation with tank pressurisation; for specifications ranging from 190 to 260 displacement sizes, it can be matched with an additional charge pump to enhance working stability. In addition, the product provides a complete selection of various control modes, which can flexibly adapt to different working conditions and system regulation requirements.

Selección y solicitud de cotización

Esta serie de productos debe seleccionarse en función del circuito hidráulico aprobado. Confirme el caudal o desplazamiento requerido, la presión continua y de punta, la velocidad de accionamiento, el tipo de control, el fluido y la interfaz de instalación antes de la selección final.

Información que debe incluir en su RFQ

  • Desplazamiento o caudal requerido a la velocidad de operación
  • Presión del sistema continua y máxima
  • Velocidad de accionamiento, requisito de control y tipo de circuito
  • Brida de montaje, eje, puertos, requisitos de fluido y filtración

Recursos relacionados

Solicitar un presupuesto · Centro de descargas · OEM / ODM

Código de pedido / Programa estándar

A20V ○ / 10 -
01 02 03 04 05 06 07 08 09 10 110 12

Unidad de pistones axiales

01

Swashplate design, variable(Back to back - design)

A20V

Bomba de carga (impulsor)

60 95 190 260 520
02 sin bomba de carga ● ● - - ●
con bomba de carga - - ● ● - L

Operación

03 Double Pump, open circuit ○

Tamaño

04 ≈Displacement Vg máxen cm3(per rotary group) 60 95 190 260 520

Dispositivos de control

60 95 190 260 520
05 see RE 92703 (A10VO/53) ● - - - -
see RE 92500 (A11VO) - ● ● ● -
see RE 92050 (A4VSO) and RE 92060,RE 92064, RE 92076 - - - - ●

Series

06 Series 1, Index 0 10

Sentido de giro

07 viewed on shaft end en el sentido de las agujas del reloj R
en sentido contrario a las agujas del reloj L

Focas

08 NBR (nitril-caoutchouc), shaft seal ring in FKM (fluor-caoutchouc) ● ● ● ● - N
FKM (fluor-caoutchouc) - - - - ● V

Shaft end

60 95 190 260 520
10 Splined shaft DIN 5480 - ● ● ● ● Z
Splined shaft, ANSI B92.1a-1976 ● ● - - - S
- - ● ● - T
Parallel keyed shaft, DIN 6885 - - - - ● P

Brida de montaje

60 95 190 260 520
09 SAEJ744-4-hole ● ● ● ● - D
To fit flywheel housing (conformin to SAE J617)

of internal combustion engine (details on request)

 - ● ● - - G
SO3019-2-8-hole - - - ● H

Puertos de las líneas de servicio

60 95 190 260 520
11 Two service line ports and one scution port at site,

opposite (fastening thread metric)

 ● ● ● ● - 24
At the site two service line ports each, opposite and one suction port displaced by 90° (fastening thread metric) - - - - ● 26

Boost pump and through drive1)

60 95 190 260 520
12 without boost pump, without through drive ● ● ● ● - N00
without boost pump, with through drive
Brida SAE J744 Splined shaft hub
82-2 (A) 5/8 pulgada 9T 16/32DP (A) ○ ○ ○ ○ - K01
127-2(C) 1 1/4 pulg. 14T 12/24DP (C) - - - - ● K07
with through drive shaft, without hub, without intermediate flange, closed by a cover - - - - ● K99

•=available     ○= available on request     -=not available

1)Please contact us

Datos técnicos

Table of values (theoretical values, without efficiencies ηMh and ηv; values rounded)

Tamaño without charge pump 60 95 520
con bomba de carga 190 260
Desplazamiento

(per rotary group)

 Vgmax cm3 60 93,8 192,7 260 520
Vg min cm3 0 0 0 0 0
Speed

maximal 1) at Vgmax
nmáx min-1 2700 2350 25002） 25002） 1450
Speed max. 3)

at Vg ≤Vgmax
nmáx min-1 3200 2780 2500 2300 1720
Flujo

at nmadrex y Vg max
qvmax L/min 2x162 2x220 2x482 2x598 2x754
Power at qv madrex

and Δp = 350 bar
Pmáx kW 1354) 257 562 689 880
Torque at VG máximo

at long-term (Δp = 350 bar)

max. perm., short term (Δp = 400 bar)
Tmáx Nm 4774) 1045 2147 2897 5793
Tmáx Nm 6024) 1194 2454 3310 6621
Moment of inertia(of the rotating parts) J kgm2 0,0113 0,0346 0,0604 0,0912 0,696
Mass approx. m kg 44 640

1)The values are quoted for an absolute pressure (pabs) of 1 bar at suction port S and mineral operating fluid

2)The values are quoted for an absolute pressure (Pabdominales) of at least 0.8 bar at suction port S and mineral operating fluid.

3)The values are quoted for Vg <Vgmax or increase of the input pressure Pabdominales at suction port S.

4) Δp = 250 bar (long-term operation) or rather 315 bar (short term).

Variable Displacement Piston pump A20VO

A20VLO