Gear pumps for projects in São Caetano do Sul, São Paulo

The choice depends on the process stage. The catalogue for the FBE external gear pump lists paints, varnishes, solvents and resins, as well as lubrication systems and hydraulic equipment; the FBCN and FBME handle water and other clean or turbid liquids; and the FBOT serves thermal oil circuits. For the plant in São Caetano do Sul, state the stage, the fluid and the operating conditions; series and configuration are confirmed in the review.

It depends on the series, as set out in each manual: 10 kgf/cm² for the FBE (MTEC-01/01, Table 5), 1.5 times the operating pressure for the FBOT (MTEC-16/00), 1.5 times the working pressure for the FBME (MTEC-08/01) and per ANSI B73.1 for the FBCN (MTEC-03/00). The test is performed on the factory bench in Cabreúva, Brazil; certificates, additional tests and customer witnessing are defined in the proposal for supply to São Caetano do Sul.

The published grade is for the FBME: service manual MSERV-08/01 (item 12.2) specifies static and dynamic impeller balancing to grade G6.3. The manuals of the other series do not publish a grade; for them and for critical projects in São Caetano do Sul, specify the required standard, grade and report in the purchase scope. Impeller balancing alone does not guarantee the vibration level of the installation.

FB Bombas supplies the complete FBCN and checks, model by model, the dimensions in manual MTEC-03/00 (baseplate, nozzles, flanges and shaft) and the duty point before the order. The manual states mechanical construction per ASME B73.1; dimensional interchangeability with the existing pump is not assumed and is confirmed on the drawing. Send the identification and drawing of the pump installed in São Caetano do Sul, with flow, head, fluid, materials and drive.

The FBCN, a standardized centrifugal pump for clean or turbid liquids, with a series range of up to 2,200 m³/h and 135 m; when a higher head is required, the multistage FBME reaches 300 m. Each model has its own limits in the manual tables. For the project in São Caetano do Sul, state the fluid and the flow and head duty point; selection checks the model curve, suction conditions, materials, drive and installation interfaces.

Yes. The FBOT is the FB Bombas series developed for pumping organic thermal oils. Manual MTEC-16/00 states temperatures up to 350 °C within the series range and back pull-out construction, which allows the bearing-housing assembly to be removed without disconnecting the piping; the maximum discharge pressure varies with temperature (Figure 1 of the manual), and the fluid must not contain abrasive particles. For the circuit in São Caetano do Sul, send the oil identification and technical data sheet, the start-up and operating temperatures and the flow and head duty point; model, materials and sealing are confirmed for the circuit.

When the Data Book is part of the purchase scope. State which drawings, manuals, certificates and test reports are required for São Caetano do Sul; the proposal confirms the documents applicable to the supplied series and configuration. The same Data Book is not assumed for every pump.

It depends on the series. The FBE can have packing, a mechanical seal, a lip seal or a magnetic coupling; the standard seal is type 21, in ceramic, graphite and Viton, with an AISI 304 stainless-steel spring. The FBCN uses packing or a mechanical seal, the FBOT combines graphite packing as the first sealing stage with a mechanical seal immersed in the bearing-housing oil, and the FBEI accepts packing or a single, double or cartridge mechanical seal. State the fluid, concentration, temperature and pressure of the process in São Caetano do Sul to define the arrangement.

It depends on the series. The catalogue for the FBE external gear pump lists oils in general, greases, asphalt, diesel oil, kerosene, paints, varnishes, resins and solvents, as well as lubrication systems and hydraulic equipment. The FBEI internal gear pump is intended for high-viscosity liquids. The FBCN and FBME handle clean or turbid liquids, and the FBOT handles organic thermal oils free of abrasive particles and of substances that chemically attack the pump. For the process in São Caetano do Sul, state the composition, temperature, viscosity and solids content; fluids with suspended solids must be assessed by FB engineering.

It depends on the series. On the FBCN and FBOT, back pull-out construction allows the bearing-housing assembly to be removed without disconnecting the piping, and the FBEI catalogue also indicates back pull-out construction. The FBE external gear pump is not back pull-out: its shafts are supported on bushings. Before working on the equipment in São Caetano do Sul, check the series manual, the sectional drawing and the parts list.