Foam operations

Foam Eductor Setup Tool

Set up inline foam eductor training correctly: calculate pressure before the eductor, check downstream demand, and estimate foam concentrate use.

Engineer Tools Hub

Foam eductor setup

Hose before eductor (ft)

Hose after eductor (ft)

Hose size

Nozzle / eductor flow (GPM)

Required eductor inlet pressure (PSI)

Nozzle pressure (PSI)

Foam percentage (%)

Foam concentrate available (gal)

For many inline eductors, pump pressure is based on the required eductor inlet pressure plus loss before the eductor. Do not add nozzle pressure after the eductor to the pump pressure unless your manufacturer/SOP directs it.

Results

Target PDP

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FL before eductor

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Downstream demand check

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Foam time

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Setup warnings

Match nozzle GPM to the eductor rating.
Keep hose after the eductor within manufacturer limits.
Make sure the pickup tube is seated and the nozzle is fully open.
Flush the eductor and hose after use.