What is the purpose of straining or filtering fluid before it enters a metering pump?

The purpose of straining or filtering fluid before it enters a metering pump is to maintain pump longevity with close fits. Metering pumps often operate with tight tolerances and require a precise flow of liquid. When particulate matter or debris enters the pump, it can cause wear, blockages, or damage to internal components, particularly in pumps designed with close tolerances. By filtering the fluid beforehand, the system reduces the risk of these issues, ensuring consistent performance and extending the lifespan of the pump.

The other options do not accurately reflect the primary reason for pre-pump filtration. Enhancing flow speed is not a result of filtering; in fact, it might slow down the flow if the filter causes any resistance. Adjusting chemical composition is a separate process from straining or filtering, which does not change the composition of the fluid. Reducing noise during operation is generally not a direct benefit of filtration, as noise levels are more influenced by mechanical factors rather than the cleanliness of the fluid.