... hand for clockwise, omit V Series Single Pumps Series Displacement CodeGeometric displacement mL/rV seriesWeight ... .514.81240144517551960216735V2167180017.522.725813097351123812145V42138180017.53445147501625718060193662127523714V Series Double Pumps SeriesDisplacement code of shaft ... Single pump--vane motor 20V, 25V,35V, 45V. Double pump--- vane motor 2520V, 3520V, 3525V, 4520V, 4525V, 4535V, V series ...