Batch transfer of acidic chemicals at a personal care products manufacturer
This application note provides an overview of the successful use of magnetically coupled Liquiflo gear pumps on a highly aggressive chemical plant duty which were installed in 1996 and are still in service today, more than 20 years later.
The company is a leading UK manufacturer of an extensive range of industrial chemicals, including surfactants and personal care products.
The requirement was for 3 pumps to batch transfer a range of acidic and chloride based chemicals on a daily basis operating up to 5 days per week. Transfer rates are variable but are in the region of 700 kg/hr at around 3.5 bars differential pressure.
With the extremely aggressive nature of the chemicals being handled, pumps manufactured in Hastelloy C276 were selected. Due to the low viscosity of the product a Hastelloy drive gear with Ryton idler were selected to eliminate gauling of the gears though lack of lubrication. The shafts were also Hastelloy running in Teflon bushings.
|External gear pump||Smooth pulseless flow||Accurate delivery|
|Magnet drive||Sealless||Zero leakage. Reduced maintenance costs with no dynamic seal replacement|
|Hastelloy-C construction||Corrosion resistant harder wearing||Extended pump life|
|Close coupled||Compact design||Reduced footprint allowing more available workspace|
|Inverter rated motors||Varaible speed control||Accurate pump delivery|