What is the minimum pressure required for a foam eductor to operate effectively?

The minimum pressure required for a foam eductor to operate effectively is 200 psi. This pressure level is essential because it ensures that the foam solution can be drawn from the foam container and mixed with the water supply effectively. The pressure must be adequate to create the necessary flow rate through the eductor to generate the right foam concentration.

When operating a foam eductor, achieving the correct balance of water and foam concentrate is crucial for producing effective fire-fighting foam. If the pressure is too low, the eductor will be unable to pull the foam concentrate and mix it with the water properly, leading to ineffective foam generation. Hence, 200 psi is the standard requirement to maintain proper operation, ensuring that firefighters can respond effectively to incidents that require foam application.