Fluid Metering’s caustic soda pump uses a valveless piston technology to avoid the problems associated with caustic soda crystallisation. A single rotating and reciprocating ceramic piston accomplishes both the pumping and valving functions, thereby eliminating the need for check valves and the associated maintenance.
Sapphire-hard internal ceramics ensure that there is no degradation in accuracy over time and no need to recalibrate. At a fraction of the size and weight of pumps typically used for caustic soda and soda ash water treatment, FMI’s design measures 254 x 127 x 127 mm, weighs only 4.5 kg, can be wall mounted, and operates on less than 100 W of power.