If the inlet pressure to the eductor is too high, what may occur?

When the inlet pressure to the eductor is too high, foam may not be inducted. This is because eductors operate based on a principle of pressure differential. When the pressure on the inlet side of the eductor is excessive, it can hinder the flow of water or foam concentrate into the suction side of the device.

Eductors work by creating a vacuum that draws the foam concentrate from its container. High inlet pressure can disrupt this vacuum effect, making it difficult for the foam to be properly drawn into the water stream. Consequently, without the effective induction of foam, the intended firefighting capabilities of the eductor will not be achieved, resulting in a failure to produce the necessary foam mixture for effective fire suppression. This underscores the importance of maintaining correct inlet pressure to ensure optimal performance of foam eductors in firefighting scenarios.