以油研A16-F-R-01-B-K-32为例，介绍各符号所代表的意思
A16--- 系列号
16 ---排量
F ---法兰安装
R ---顺时针旋转
04 ---电-液比例负载敏感控制型
B ---压力调节范围1.5—7                                                                                                                                     K-----轴伸形式为平键
32---设计号

A16-F-R-01-B-K-32、A16-F-R-01-C-K-32、A16-F-R-01-H-K-32

A16-F-R-01-B-S-K-32、A16-F-R-01-C-S-K-32、A16-F-R-01-H-S-K-32

A16-F-R-04-B-K-32、A16-F-R-04-C-K-32、A16-F-R-04-H-K-32