What is the function of a discharge manifold and when would you employ one?

What is the function of a discharge manifold and when would you employ one?

• A. It raises discharge pressure.
• B. A manifold distributes flow from a single source to multiple lines or appliances; used when multiple lines/nozzles require water or to feed standpipes.
• C. It reduces friction loss.
• D. It is used to prime the pump.

Answer: (B)

A discharge manifold acts as a distribution hub on the pump discharge, taking water from the pump and routing it to several downstream outlets. You’d use one whenever more than one line needs water at the same time—such as supplying multiple attack lines or feeding a standpipe system. It lets you open or close individual outlets to control which lines receive water, keeping the flow organized and efficient from a single pump source. This setup doesn’t by itself raise discharge pressure; pressure is determined by the pump settings and the friction losses along each path. It’s not used for priming the pump. So, when you need to feed multiple lines or standpipes from one pump, a discharge manifold is the right tool to distribute that water.

A discharge manifold acts as a distribution hub on the pump discharge, taking water from the pump and routing it to several downstream outlets. You’d use one whenever more than one line needs water at the same time—such as supplying multiple attack lines or feeding a standpipe system. It lets you open or close individual outlets to control which lines receive water, keeping the flow organized and efficient from a single pump source. This setup doesn’t by itself raise discharge pressure; pressure is determined by the pump settings and the friction losses along each path. It’s not used for priming the pump. So, when you need to feed multiple lines or standpipes from one pump, a discharge manifold is the right tool to distribute that water.