(RA7VO)进口轴向柱塞变量泵 产品特点 Product features

斜轴结构轴向锥形柱塞变量泵，用于开式回路静液压传动 Axial tapered piston variable displacement pump with inclined shaft structure is used for open circuit hydrostatic transmission

输出流量与转速和泵排量成正比，流量从最大到零（qvmax到qvin=0）无级可调  The output flow is proportional to the speed and pump displacement, and the flow is stepless adjustable from maximum to zero (qvmax to qvin=0)

多种变量方式适用于各种调节和控制装置 Various variable modes are applicable to various adjustment and control devices

开式回路，坚固紧凑的轴承系统，寿命长 Open circuit, solid and compact bearing system, long service life

工作粘度范围 Working viscosity range

为了获得最佳效率和使用寿命，RETZ推荐工作粘度（在工作温度下）在下列范围内选择∶v opt=最佳工作粘度16..36mm2/s

In order to obtain the best efficiency and service life, Retz recommends that the working viscosity (at the working temperature) be selected in the following range: V opt= the best working viscosity 16 36mm2/s

油液的过滤 Filtration of oil

液压油过滤越干净，油液清洁度等级越高，轴向柱塞元件的寿命越长 The cleaner the hydraulic oil is filtered, the higher the cleanliness level of the oil is, and the longer the service life of the axial piston element is

为保证轴向柱塞元件的功能，需要清洁度至少为 按ISO4406的20/18/15级最低的清洁度等级为 In order to ensure the function of the axial piston element, the cleanliness is required to be at least: according to ISO4406 level 20/18/15, the minimum cleanliness level is

液压油处于高温时（90℃至最高115℃），按ISO4406的19/17/14级  When the hydraulic oil is at high temperature (90 ℃ to 115 ℃ at most), it shall be subject to grade 19/17/14 of ISO4406

轴向柱塞变量泵参数值 Parameter value

规格∶28…160

公称压力350bar ，峰值压力400bar

排量cm³：28-160

转速min'：4750-1900

流量L/min：89-304

功率KW:52-177

扭矩Nm：156-891

注油量L:0.5-2.4