量泵说明：当系统压力提高并接近泵预设的关闭压力时，泵的输出流量会自动减少同时维持调定压力如常。在现有的变量泵的流量控制方法中，压力补偿为流行。因为这种泵不需随系统压力成比例地增加输入功率，因而可以设计高效率的回路。在定量泵中，由于具有压力平衡式的结构，侧向负载彼此抵消。而在变量泵中，内部的压力并非平衡，并施加一侧向负载于其支承表面，该负载与工作压力成正比。

　　柱塞泵的优点如下：1、高效。2、比较容易获得高压。3、变量式可容易的设计。

　　4、可提供各种控制方式。

　　柱塞泵的种类：

　　1、轴向柱塞泵。

　　2、径向柱塞泵。

　　3、往复式柱塞泵。

　　A3H16-FR01KK-10A3H16-LR01KK-10A3H37-FR01KK-10A3H37-LR01KK-10

　　A3H56-FR01KK-10A3H56-LR01KK-10A3H71-FR01KK-10A3H71-LR01KK-10

　　A3H100-FR01KK-10A3H100-LR01KK-10A3H145-FR01KK-10A3H145-LR01KK-10

　　A3H180-FR01KK-10A3H180-LR01KK-10A3H16-FR14K-10A3H16-LR14K-10

　　A3H37-FR14K-10A3H37-LR14K-10A3H56-FR14K-10A3H56-LR14K-10

　　A3H71-FR14K-10A3H71-LR14K-10A3H100-FR14K-10A3H100-LR14K-10

　　A3H145-FR14K-10A3H145-LR14K-10A3H180-FR14K-10A3H180-LR14K-10

　　A3H37-FR09-11A4K-10A3H37-LR09-11A4K-10A3H37-FR09-15A4K-10A3H37-LR09-15A4K-10

　　A3H37-FR09-18.5A4K-10A3H37-LR09-18.5A4K-10A3H37-FR09-11B4K-10A3H37-LR09-11B4K-10

　　A3H37-FR09-15B4K-10A3H37-LR09-15B4K-10A3H37-FR09-18.5B4K-10A3H37-LR09-18.5B4K-10

　　A3H37-FR09-22B4K-10A3H37-LR09-22B4K-10A3H37-FR09-5.5A6K-10A3H37-LR09-5.5A6K-10

　　A3H37-FR09-7.5A6K-10A3H37-LR09-7.5A6K-10A3H37-FR09-11A6K-10A3H37-LR09-11A6K-10

　　A3H37-FR09-7.5B6K-10A3H37-LR09-7.5B6K-10A3H37-FR09-11B6K-10A3H37-LR09-11B6K-10

　　叶片泵PV2R12双联泵系列

　　本型泵由同一轴驱动的两个PV2R型单泵并联组装在同一壳体内而成。

　　输出流量可以输向两个独立的回路。

　　型号说明

　　PV2R12 - 14-33- F- R A A A - 4222

　　PV2R12----序列号

　　小流量泵 公称排量（cm/rev）

　　33---------大流量泵 公称排量（cm/rev）

　　F安装方式 L=底座安装型 F=法兰安装型

　　R旋转方向 R=顺时针方面（标准） L=逆时针方向

　　A----------小流量泵 输出口位置 A=上（标准）

　　A----------大流量泵 输出口位置 A=上（标准）

　　A----------吸入口位置 A=上（标准）

　　4222-----设计号常用型号

　　部分型号：

　　PV2R12-6-26-L-RAAA-4222 PV2R12-6-26-F-RAAA-4222

　　PV2R12-6-26-L-LAAA-4222 PV2R12-6-26-F-LAAA-4222

　　PV2R12-8-26-L-RAAA-4222 PV2R12-8-26-F-RAAA-4222

　　PV2R12-8-26-L-LAAA-4222 PV2R12-8-26-F-LAAA-4222

　　PV2R12-10-26-L-RAAA-4222 PV2R12-10-26-F-RAAA-4222

　　PV2R12-10-26-L-LAAA-4222 PV2R12-10-26-F-LAAA-4222

　　PV2R12-12-26-L-RAAA-4222 PV2R12-12-26-F-RAAA-4222

　　PV2R12-12-26-L-LAAA-4222 PV2R12-12-26-F-LAAA-4222

　　PV2R12-14-26-L-RAAA-4222 PV2R12-14-26-F-RAAA-4222

　　PV2R12-14-26-L-LAAA-4222 PV2R12-14-26-F-LAAA-4222

　　PV2R12-17-26-L-RAAA-4222 PV2R12-17-26-F-RAAA-4222

　　PV2R12-17-26-L-LAAA-4222 PV2R12-17-26-F-LAAA-4222

　　PV2R12-19-26-L-RAAA-4222 PV2R12-19-26-F-RAAA-4222

　　PV2R12-19-26-L-LAAA-4222 PV2R12-19-26-F-LAAA-4222

　　PV2R12-23-26-L-RAAA-4222 PV2R12-23-26-F-RAAA-4222

　　PV2R12-23-26-L-LAAA-4222 PV2R12-23-26-F-LAAA-4222

　　PV2R12-25-26-L-RAAA-4222 PV2R12-25-26-F-RAAA-4222

　　PV2R12-25-26-L-LAAA-4222 PV2R12-25-26-F-LAAA-4222

　　PV2R12-31-26-L-RAAA-4222 PV2R12-31-26-F-RAAA-4222

　　PV2R12-31-26-L-LAAA-4222 PV2R12-31-26-F-LAAA-4222

　　PV2R12-6-33-L-RAAA-4222 PV2R12-6-33-F-RAAA-4222

　　PV2R12-6-33-L-LAAA-4222 PV2R12-6-33-F-LAAA-4222

　　PV2R12-8-33-L-RAAA-4222 PV2R12-8-33-F-RAAA-4222

　　PV2R12-8-33-L-LAAA-4222 PV2R12-8-33-F-LAAA-4222

　　PV2R12-10-33-L-RAAA-4222 PV2R12-10-33-F-RAAA-4222

　　PV2R12-10-33-L-LAAA-4222 PV2R12-10-33-F-LAAA-4222

　　PV2R12-12-33-L-RAAA-4222 PV2R12-12-33-F-RAAA-4222

　　PV2R12-12-33-L-LAAA-4222 PV2R12-12-33-F-LAAA-4222

　　PV2R12-14-33-L-RAAA-4222 PV2R12-14-33-F-RAAA-4222

　　PV2R12-14-33-L-LAAA-4222 PV2R12-14-33-F-LAAA-4222

　　PV2R12-17-33-L-RAAA-4222 PV2R12-17-33-F-RAAA-4222

　　PV2R12-17-33-L-LAAA-4222 PV2R12-17-33-F-LAAA-4222

　　PV2R12-19-33-L-RAAA-4222 PV2R12-19-33-F-RAAA-4222

　　PV2R12-19-33-L-LAAA-4222 PV2R12-19-33-F-LAAA-4222

　　PV2R12-23-33-L-RAAA-4222 PV2R12-23-33-F-RAAA-4222

　　PV2R12-23-33-L-LAAA-4222 PV2R12-23-33-F-LAAA-4222

　　PV2R12-25-33-L-RAAA-4222 PV2R12-25-33-F-RAAA-4222

　　PV2R12-25-33-L-LAAA-4222 PV2R12-25-33-F-LAAA-4222

　　PV2R12-31-33-L-RAAA-4222 PV2R12-31-33-F-RAAA-4222

　　PV2R12-31-33-L-LAAA-4222 PV2R12-31-33-F-LAAA-4222

　　PV2R12-6-41-L-RAAA-4222 PV2R12-6-41-F-RAAA-4222

　　PV2R12-14-41-L-LAAA-4222 PV2R12-14-41-F-LAAA-4222

　　PV2R12-17-41-L-RAAA-4222 PV2R12-17-41-F-RAAA-4222

　　PV2R12-17-41-L-LAAA-4222 PV2R12-17-41-F-LAAA-4222

　　PV2R12-19-41-L-RAAA-4222 PV2R12-19-41-F-RAAA-4222

　　PV2R12-19-41-L-LAAA-4222 PV2R12-19-41-F-LAAA-4222

　　PV2R12-23-41-L-RAAA-4222 PV2R12-23-41-F-RAAA-4222

　　PV2R12-23-41-L-LAAA-4222 PV2R12-23-41-F-LAAA-4222

　　PV2R12-25-41-L-RAAA-4222 PV2R12-25-41-F-RAAA-4222

　　PV2R12-25-41-L-LAAA-4222 PV2R12-25-41-F-LAAA-4222

　　PV2R12-31-41-L-RAAA-4222 PV2R12-31-41-F-RAAA-4222

　　PV2R12-31-41-L-LAAA-4222 PV2R12-31-41-F-LAAA-4222

　　PV2R12-6-47-L-RAAA-4222 PV2R12-6-47-F-RAAA-4222

　　PV2R12-6-47-L-LAAA-4222 PV2R12-6-47-F-LAAA-4222

　　PV2R12-8-47-L-RAAA-4222 PV2R12-8-47-F-RAAA-4222

　　PV2R12-8-47-L-LAAA-4222 PV2R12-8-47-F-LAAA-4222

　　PV2R12-10-47-L-RAAA-4222 PV2R12-10-47-F-RAAA-4222

　　PV2R12-10-47-L-LAAA-4222 PV2R12-10-47-F-LAAA-4222