Which type of eductor is described having 2 and 1/2 discharge?

The type of eductor described as having a discharge size of 2 and 1/2 inches is the Perijet eductor. This particular design utilizes its size and flow characteristics to create a strong vacuum effect, allowing for effective fluid transfer or removal from a space. The 2 and 1/2 inch discharge is indicative of its capacity to handle significant volumes of liquid, making it suitable for various applications in damage control and firefighting scenarios.

In damage control practices, using an eductor with the right discharge size is crucial for ensuring efficient operation and rapid response in situations where water or other fluids need to be moved quickly. The Perijet's design and discharge capacity allow for such quick interventions, which is why it is specifically referenced in this context.