(RA4VTG)进口变量柱塞泵 产品特点 Product features

斜盘结构轴向柱塞变量泵，适用于闭式回路的静液传动  Axial piston variable displacement pump with swashplate structure is suitable for hydrostatic transmission of closed circuit

流量与驱动转速和排量成比例可无级调节retz品牌 The flow rate is proportional to the driving speed and displacement and can be adjusted steplessly

随着斜盘摆角度增加.流量从零到最大值  As the swashplate swing angle increases Flow from zero to maximum

当斜盘摆经过零位时. 液流方向平稳换向  When the swashplate pendulum passes the zero position The direction of liquid flow is reversed smoothly

良好适应性的多种形式控制和调节功能  Various forms of control and regulation functions with good adaptability

高压侧的两个溢流阀保护液压传动元件（泵和马达）不过载  Two overflow valves on the high-pressure side protect the hydraulic transmission elements (pump and motor) from overload

高压溢流阀同时作为补油压阀  The high-pressure overflow valve also acts as the oil makeup valve

内置辅助泵作为补油和控制油泵  Built in auxiliary pump is used as oil makeup and control oil pump

通过内装的补油溢流阀限制最大补油压力  The maximum oil replenishment pressure is limited by the built-in oil replenishment overflow valve

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

(RA4VTG)进口变量柱塞泵 参数值 Parameter value

额定压力 40MPa 峰值压力 45MPa

规格∶90 

排量mL/r：变量泵90，辅助泵（当P=2MPa）28.3  

最高转速min:3050

最低转速min:300

流量L/min：当 no max 持续和Vg max ：275

功率KW/:183

扭矩Nm：572