F+W (Foam and Water) is the foam proportioning brand of Ningbo Fude Fire Technology Co., Ltd. in Ningbo, China (foamandwater.com). It belongs to the same group as SureX Foam and Vision (visionmfr.com), a maker of grooved couplings, sprinkler components and pipe hangers.
Products
F+W is best known for water motor driven foam proportioners, the X Series. The proportioner uses the pressure of the fire water to drive a water motor that pumps the foam concentrate, so it needs no electrical power and keeps the mixing rate steady across a wide flow range. The brand also covers mechanical pump-in proportioners, balanced pressure proportioning, low expansion foam systems and remote water supply foam proportioning modules, used in oil and gas, aircraft hangars, hazardous goods warehouses and foam fire trucks.
Check approvals and the approved flow range for each model before specifying it.