Technical solutions
What defines the FBE external gear pump in Araucária is its behavior under variable pressure: being positive displacement, flow follows speed and practically ignores backpressure swings in the line — the typical case of CAP, óleos pesados e produtos intermediários. Two installation requirements follow from this physics: a sized relief valve on the discharge and, for fluids that harden when cold, a heating jacket on the pump body. For the technical profile observed in Araucária, FB Bombas application engineering recommends FBE+FBEI and FBCN+FBOT as a starting point for sizing, subject to refinement per Q×H curve, available NPSH and actual fluid temperature. Recommended sealing for the operation profile in Araucária is single cartridge mechanical seal (Plan 11/13) for general service, upgradable to dual when the fluid requires secondary containment — a choice that affects MTBF and maintenance procedure. In Araucária, influence from the automotivo cluster translates into cutting fluids, hydraulic oils, paint-line water and process cooling — variables that enter both preliminary sizing and the selection of materials and constructive configurations. In Araucária, materials such as AISI 316 or for chloride resistance in marine atmosphere answer the requirements of derivados de petróleo, asfalto CAP and óleos pesados — a combination that drives service life of casing, impeller, shaft and shaft sleeve, refined via corrosion analysis using removal rates (mpy). For Araucária, FBCN centrifugal pumps with flow up to 2,200 m³/h, head up to 135 m and temperature up to 260°C (thermal oil via FBOT up to 350°C) is a starting specification — fine-tuning happens with the actual system curve (friction, available NPSH, headloss). In Araucária, transferência de CAP, circulação de produtos intermediários, bombeamento de resíduos and resfriamento de reatores are the applications that most often appear in local industrial operations; each defines a distinct set of process variables. For Araucária, the FB protocol includes hydrostatic test at 1.5× design pressure, performance run and ISO 21940 G2.5 balancing — all documented in the Data Book.