Solving the problem of too many parts
Flows of very strong acids or alkalis takes a heavy toll on flow monitor springs
When it comes to mixing and controlling the flow of acids, more is not always better. Over time, the spring in a flow monitor in applications that are very acidic or alkaline disintegrates and needs replacing due to the constant exposure to strong chemicals.
ChemTec, which offers parts that are customisable to the specific need of each client, was approached by Dober Chemical Corporation to see if it could engineer a way around the spring, such that the monitor would last longer.
If a part does not exist, ChemTec is eager to create it for clients, so it set to work. It was clear that the spring had to be eliminated, but that still left the problem of monitoring the flow of acids based on the viscosity of the liquid. The company’s response was a high power magnet on the outside of the fluid path. This allowed the flow of acid and alkaline substances to be monitored, but without any metal parts touching the chemicals themselves.
This unit now has all-Teflon wetted parts, which dramatically extended the life of the flow monitor, saving the client the cost of repairs and replacements over time.
Not only was the customised result a success but by eliminating the metal spring from the chemical exposure, the flow monitor also became a sleeker and more streamlined part.
