FIREMIKS has received FM approval for eight models in three sizes. We are pleased to inform that we received FM approval (PR461525) for class 5139, (Approval standard: 5130 - May 2021) for eight of our models, in three flow sizes: 1800, 2400 and 4000 lpm with 3% dosing rate. See Certificate of Compliance. Our FIREMIKS water driven volumetric pump proportioners are nominated by FM as Variable Viscosity Pump Proportioners, meaning they are giving correct dosing rate and handling concentrates from 1 cP up to high viscosity concentrates (6422 cP at 20 degree C and shear rate 5 1/s).