叶片泵具有结构紧凑。输出流量均匀，运转平稳，噪声小等优点，所以在机床，各种加工流水线，自动线，注射机，液压机和部分工程机械中得到了非常广泛的应用。叶片泵最适用于用量较大的中等功率设备的液压系统。叶片泵有双作用式定量叶片泵和单作用式变量叶片泵两大类。
常规型号：
20V2A
20V2A-1A22R
20V2A-1B22R
20V2A-1C22R
20V2A-1D22R
20V3A
20V3A-1A22R
20V3A-1B22R
20V3A-1C22R
20V3A-1D22R
20V4A
20V4A-1A22R
20V4A-1B22R
20V4A-1C22R
20V4A-1D22R
20V5A
20V5A-1A22R
20V5A-1B22R
20V5A-1C22R
20V5A-1D22R
20V6A
20V6A-1A22R
20V6A-1B22R
20V6A-1C22R
20V6A-1D22R
20V7A
20V7A-1A22R
20V7A-1B22R
20V7A-1C22R
20V7A-1D22R
20V8A
20V8A-1A22R
20V8A-1B22R
20V8A-1C22R
20V8A-1D22R
20V9A
20V9A-1A22R
20V9A-1B22R
20V9A-1C22R
20V9A-1D22R
20V10A
20V10A-1A22R
20V10A-1B22R
20V10A-1C22R
20V10A-1D22R
20V11A
20V11A-1A22R
20V11A-1B22R
20V11A-1C22R
20V11A-1D22R
20V12A
20V12A-1A22R
20V12A-1B22R
20V12A-1C22R
20V12A-1D22R
20V14A
20V14A-1A22R
20V14A-1B22R
20V14A-1C22R
20V14A-1D22R
25V10A
25V10A-1A22R
25V10A-1B22R
25V10A-1C22R
25V10A-1D22R
25V12A
25V12A-1A22R
25V12A-1B22R
25V12A-1C22R
25V12A-1D22R
常见故障及其原因
排除方法
顶盖处螺丝松动，轴向间隙增大，容积效率下降
适当拧紧螺钉，保证间隙均匀、适当（间隙为0.04～0.07 mm)
个别叶片滑动不灵活
清洗。清洗后仍不灵活时，应单槽调配，使叶片
定子内表面磨损，叶片不能与定子内表面良好接触
定子内表面磨损一般在吸油腔处
配流盘端面磨损严重
更换
叶片与转子装反
使叶片倾角方向和转子的旋转方向一致
系统泄漏大
逐个元件检査泄漏，同时检查压力表是否被脏物堵塞
