Air operated piston pumps

Founded in Spain in 1958, Samoa is a third generation privately owned company, with a great reputation obtained worldwide in the fluid management and handling sector. Samoa designs and manufactures a wide program that includes air operated piston and diaphragm pumps, volume flow meters, delivery guns, electronic components for inventory control systems, hose reels, hand pumps and accessories.

Compressed air provides the best power source because it allows the pump to stall against fluid back pressure. When the dispense gun is opened, the fluid pressure drops in the system, the pump automatically starts and oil flows. When the dispense gun is closed, back pressure is created in the system. When the fluid back pressure force acting on the pump piston equals the force of the compressed air pushing on the pump air piston, the system stops or stalls. When using other power sources, such as electric or hydraulic, the pump must have pressure sensing switches, bypass loops and relief valves, for controlling the motor and pressure.

Our Samoa partner offers an extremely wide range of accessories e.g. hoses, hose reels, flow meters, dosing guns and complete dispensing systems with PLC control.