Atos offers hydraulic pumps such as fixed displacement pumps, variable displacement pumps, multiple pumps, hand pumps and ATEX pumps for potentially explosive atmospheres. Fixed displacement pumps feature vane pumps, cartridge design, integral hydraulic balancing, low noise level, radial piston pumps, external gear pumps and axial hydraulic balancing. Variable displacement pumps feature variable displacement by mechanical compensator or a full line of hydraulic controls, axial piston pumps, proportional electrohydraulic controls for PVPC pumps, pressure flow combined P/Q control and analog or digital input. Multiple pumps include double vane pumps with 2 PFE cartridges and multiple pumps made of PFE, PFR and PVPC. Hand pumps are double plunger pumps with hand operations.