What is the name of the device that uses a venturi to draw foam concentrate through connected tubing?

The device that uses a venturi to draw foam concentrate through connected tubing is properly known as a self-educting nozzle. This type of nozzle incorporates a venturi effect, which creates a low-pressure zone that allows the foam concentrate to be mixed with water as it passes through the nozzle. The design enables water flow to efficiently draw the foam concentrate from a container, ensuring a consistent and effective foam application.

This principle is crucial in firefighting, particularly when using foam agents for fire suppression, as it allows for the precise mixing and delivery of foam to combat flammable liquids. The self-educting nozzle simplifies the process and enables firefighters to create foam at the point of application, enhancing their ability to control and extinguish fires effectively.

Other options, such as the balanced pressure pump, in-line eductor, and foam proportioner, serve different functions in foam delivery and mixing processes, but they do not specifically employ the venturi effect in the same way that a self-educting nozzle does.