特点：
1、节能，经济型泵。
2、内装高精度压力补偿结构。
3、油环具有弹力，且偏芯、随压力上升而自动移到中心，使排除量为零。
4、可以省去回路中的溢流阀及卸荷阀。
5、与压力成比例的输入可以防止油
部分型号：
VDR-1A-1A2-22 VDR-1A-1A3-22 VDR-1A-1A4-22 VDR-1A-1A5-22
VDR-1A-2A2-22 VDR-1A-2A3-22 VDR-1B-1A2-22 VDR-1B-1A3-22
VDR-1B-1A4-22 VDR-1B-1A5-22 VDR-1B-2A2-22 VDR-1B-2A3-22
VDR-11A-1A2-1A2-22 VDR-11A-1A2-1A3-22 VDR-11A-1A3-1A3-22
VDR-11A-2A2-2A2-22 VDR-11A-2A2-2A3-22 VDR-11A-2A3-2A3-22
VDR-11B-1A2-1A2-22 VDR-11B-1A2-1A3-22 VDR-11B-1A3-1A3-22
VDR-11B-2A2-2A2-22 VDR-11B-2A2-2A3-22 VDR-11B-2A3-2A3-22
VDC-1B-1A4-20,VDC-1B-1A5-20 VDC-1B-2A2-20,VDC-1B-2A3-20
VDC-2B-1A2-20,VDC-2B-1A3-20 VDC-2B-1A4-20,VDC-2B-1A5-20
VDC-2B-2A2-20,VDC-2B-2A3-20 VDC-3B-1A2-20,VDC-3B-1A3-20
VDC-3B-1A4-20,VDC-3B-1A5-20 VDC-1A-1A2-20,VDC-1A-1A3-20
VDC-1A-1A4-20,VDC-1A-1A5-20 VDC-1A-2A2-20,VDC-1A-2A3-20
VDC-2A-1A2-20,VDC-2A-1A3-20 VDC-2A-1A4-20,VDC-2A-1A5-20
VDC-2A-2A2-20,VDC-2A-2A3-20 VDC-3A-1A2-20,VDC-3A-1A3-20
VDC-3A-1A4-20,VDC-3A-1A5-20 VDR-1B-1A3-13,VDR-1B-1A2-13
VDR-2B-1A3-13,VDR-1B-1A1-13 VDR-2B-1A2-13,VDR-2B-1A1-13
VDR-1A-1A1-13,VDR-1A-1A2-13VDR-1A-1A3-13,VDR-2A-1A1-13
VDR-2A-1A2-13,VDR-2A-1A3-13 VDR-1B-1A5-22,VDR-1B-1A4-22
VDR-1B-1A3-22,VDR-1B-1A2-22 VDR-1B-2A2-22,VDR-1B-2A3-22
VDR-1A-1A2-22,VDR-1A-1A3-22 VDR-1A-1A4-22,VDR-1A-1A5-22
VDR-1A-2A2-22,VDR-1A-2A3-22
