Proportioners

A proportioner is a device used to control the ratio of two or more substances, typically in a fluid system. These devices ensure that a specific, consistent proportion of each component is mixed or delivered. Proportioners are essential in many industrial and commercial applications where precise mixture ratios are critical for product quality, performance, or safety.

One common type of proportioner is a water-powered fertilizer injector. These devices use the flow of water to drive a mechanism that draws in and mixes a concentrated fertilizer solution at a predetermined ratio. The proportioner ensures that the correct amount of fertilizer is diluted into the water stream, preventing over or under-fertilization. Other variations exist for chemical dosing, where precise amounts of chemicals are added to water for purposes such as water treatment, sanitation, or industrial processes.

The principle of operation for many proportioners involves differential pressures or flow rates. Some use venturi effects, where the passage of one fluid through a constricted area creates a lower pressure, drawing in another fluid. Others employ mechanical linkages or diaphragm pumps that are actuated by the primary flow, ensuring a proportional draw of the secondary fluid. The accuracy and reliability of a proportioner are crucial for its intended application, and they are often designed for specific flow ranges and chemical compatibilities. Their widespread use highlights their importance in maintaining consistent and efficient operations across various industries.