Hydraulic pump with pistons arranged alongside one another and perpendicular to the drive shaft Piston (Figure R 24). They are preferably made as single-piston pumps (also for manual operation) or as 3-piston pumps for pressurised water operation. Pumps with banked pistons/in-line piston pump with multiple pistons are now worthless.
Figure R 24: Pump with banked pistons/in-line piston pump