FELUWA MULTISAFE® double hose-diaphragm pumps
for abrasive, aggressive and toxic media

Pressure air vessels

In order to ensure high effectiveness of pulsation dampening, liquid columns should be kept as low as practicable. For this reason, air vessels are mounted as close as possible to the pump heads, which means directly above the discharge and below the suction valves. The dampening behaviour depends on the different pulsation dampener designs.

With traditional pressure air vessels, the gas cushion is held directly above the conveyed fluid. Under peak pressures and/ or excessive flow, this cushion is compressed above the fluid level and released during the suction stroke of the pump. The fluid is then displaced into the discharge pipe and minimises pulsations accordingly.

MULTISAFE® double hose-diaphragm pump with pressure air vessel