威格士3520V-25A9/30A9/35A9/38A9-1AA-22R叶片泵外形尺寸相对小，这些代号业经证实能为所列产品 ( 无论哪家制造商的 ) 提供长而***的使用寿命。液压系统中的油液起着流体传动、元件润滑和冷却的多重功能。它们在液压系统中的关键作用是必须满足工作条件和***元件的寿命。液压系统对***的石油基液压油的基本要求是：1. 足够的抗磨添加剂2. 在工作温度下有正确的黏度3. 充分的防腐和防氧化能力从---厂商处得到***油液提供这些性能。两种***的油液满足现代液压系统的要求：·抗磨型液压油，根据 astm-d-2882 的泵磨损试验。·汽车曲轴油箱，按照 sae j183 jun89标记 "sc"，"sd"，"se"，"sf" 或 "sg"。有关正确的黏度和正确选择液压系统油液的进一步资料，参考样本 694。

2520V-21A9-1BC-22R	2525V-21A21-1BD-22R	2525V-10A12-1DD-22R	3525V-25A10-1BD-22R
2520V-10A11-1BC-22R	2525V-10A10-1CA-22R	2525V-12A12-1DD-22R	3525V-30A10-1BD-22R
2520V-12A11-1BC-22R	2525V-12A10-1CA-22R	2525V-14A12-1DD-22R	3525V-35A10-1BD-22R
2520V-14A11-1BC-22R	2525V-14A10-1CA-22R	2525V-17A12-1DD-22R	3525V-38A10-1BD-22R
2520V-17A11-1BC-22R	2525V-17A10-1CA-22R	2525V-21A12-1DD-22R	3525V-25A12-1BD-22R
2520V-21A11-1BC-22R	2525V-21A10-1CA-22R	2525V-10A14-1DD-22R	3525V-30A12-1BD-22R
2520V-10A12-1BC-22R	2525V-10A12-1CA-22R	2525V-12A14-1DD-22R	3525V-35A12-1BD-22R
2520V-12A12-1BC-22R	2525V-12A12-1CA-22R	2525V-14A14-1DD-22R	3525V-38A12-1BD-22R
2520V-14A12-1BC-22R	2525V-14A12-1CA-22R	2525V-17A14-1DD-22R	3525V-25A14-1BD-22R
2520V-17A12-1BC-22R	2525V-17A12-1CA-22R	2525V-21A14-1DD-22R	3525V-30A14-1BD-22R
2520V-21A12-1BC-22R	2525V-21A12-1CA-22R	2525V-10A17-1DD-22R	3525V-35A14-1BD-22R
2520V-10A2-1BD-22R	2525V-10A14-1CA-22R	2525V-12A17-1DD-22R	3525V-38A14-1BD-22R
2520V-12A2-1BD-22R	2525V-12A14-1CA-22R	2525V-14A17-1DD-22R	3525V-25A17-1BD-22R
2520V-14A2-1BD-22R	2525V-14A14-1CA-22R	2525V-17A17-1DD-22R	3525V-30A17-1BD-22R

威格士3520V-25A9/30A9/35A9/38A9-1AA-22R叶片泵外形尺寸相对小，在叶片、转子、定子与配流盘之间构成若干密封空间。当叶片从小半径曲线段向大半径曲线滑动时，叶片外伸,这时所构成的密封容积由小变大，形成部分真空，油液便经吸油窗口吸入;而处于从大半径曲线段向小半径曲线滑动的叶片缩回，所构成的密封容积由大变小，其中的油液受到挤压，经过压油窗口压出这种叶片泵每转-一周，每个密封容腔完成两次吸、压油过程，故这种泵称为双作用叶片泵。同时，泵中两吸油区和两压油区各自对称，使作用在转子.上的径向液压力互相平衡，所以这种泵又被称为平衡式叶片泵或双作用卸荷式叶片泵。这种泵的排量不可调，因此它是定量泵。2.双作用叶片泵排量和流量图可知，泵轴转-转时，从吸油窗口流向压油窗口的液体体积为大半径为r，小半径为r,宽度为b的圆环的体积。因为是双作用泵，所以双作用叶片泵的排量为叶片体积对排量无影响。因为在压油腔，叶片缩回排出的液体体积补偿了叶片在压油腔所占的体积。

2520V-17A2-1BD-22R	2525V-17A14-1CA-22R	2525V-21A17-1DD-22R	3525V-35A17-1BD-22R
2520V-21A2-1BD-22R	2525V-21A14-1CA-22R	2525V-10A21-1DD-22R	3525V-38A17-1BD-22R
2520V-10A5-1BD-22R	2525V-10A17-1CA-22R	2525V-12A21-1DD-22R	3525V-25A21-1BD-22R
2520V-12A5-1BD-22R	2525V-12A17-1CA-22R	2525V-14A21-1DD-22R	3525V-30A21-1BD-22R
2520V-14A5-1BD-22R	2525V-14A17-1CA-22R	2525V-17A21-1DD-22R	3525V-35A21-1BD-22R
2520V-17A5-1BD-22R	2525V-17A17-1CA-22R	2525V-21A21-1DD-22R	3525V-38A21-1BD-22R
2520V-21A5-1BD-22R	2525V-21A17-1CA-22R	2525V-21A14-1DA-22R	3525V-25A10-1CA-22R
2520V-10A8-1BD-22R	2525V-10A21-1CA-22R	2525V-10A17-1DA-22R	3525V-30A10-1CA-22R
2520V-12A8-1BD-22R	2525V-12A21-1CA-22R	2525V-12A17-1DA-22R	3525V-35A10-1CA-22R
2520V-14A8-1BD-22R	2525V-14A21-1CA-22R	2525V-14A17-1DA-22R	3525V-38A10-1CA-22R
2520V-17A8-1BD-22R	2525V-17A21-1CA-22R	2525V-17A17-1DA-22R	3525V-25A12-1CA-22R
2520V-21A8-1BD-22R	2525V-21A21-1CA-22R	2525V-21A17-1DA-22R	3525V-30A12-1CA-22R