Internal Gear Pump — SeriesFBEI

An internal gear pump uses an inner rotor (drive gear) and an outer rotor (ring gear) to create pumping chambers that transport fluid smoothly and continuously, with low pulsation and quiet operation.

FBEI pumps are versatile and handle fluids from low to extremely high viscosity: lubricating oils, resins, hot-melt adhesives, chocolate, molasses, paints, varnishes, bitumen, polymers and viscous chemicals in general.

Internal gear produces smoother flow with less pulsation than external gear, operates more quietly, is self-priming and handles wider viscosity variations. Includes integrated relief valve and is available with mechanical seal or packing.

Yes, FBEI pumps are available with heating jacket to maintain fluid temperature during pumping. The jacket supports steam up to 185°C and thermal fluid up to 232°C. For higher temperatures, consult our engineering team.

The FBEI-LS (Large Size) is the heavy-duty version of the FBEI internal gear pump, designed for industrial high-volume applications. It uses gear reducer drive to generate high torque at low speeds, ideal for extremely viscous fluids such as asphalt, bitumen and heavy oils in large volumes.

The reducer converts the high motor RPM into low pump RPM, generating high torque. This is essential for pumping extremely high viscosity fluids in large volumes without damaging the product or overloading the equipment.

FB Bombas' FBEI line is the Brazilian internal gear pump alternative covering the same technical segment served by Viking Pump (IDEX). It includes 10 catalogued models from 1" to 4" per the official technical manual MAN001-10, with rotor + idler + crescent operating principle, integrated relief valve and optional heating jacket (steam up to 185°C / thermal fluid up to 232°C). Construction in cast iron, carbon steel or 316 stainless steel. Manufactured in Cabreúva-SP since 1944, per API 676, CRCC Petrobras qualified supplier — Family 6 (Rotating Equipment).

Maag (Sulzer group) operates in the same technical segment of industrial internal gear pumps covered by the FBEI. FB Bombas evaluates connection/flange dimensional equivalence for retrofit on a case-by-case basis through the application engineering team in Cabreúva-SP. The FBEI offers 10 catalogued models from 1" to 4" in three construction configurations (with integrated relief valve, compact and heavy-duty 3") + FBEI-LS engineered-to-order version for large capacities in asphalt and bitumen. API 676 compliance, integrated relief valve as standard.

Yes. FB Bombas' FBEI covers the same technical segment as Tuthill's L, C and GlobalGear positive-displacement internal gear pumps. Three construction configurations: with-relief-valve (5 models: HL12, KK2, LQ21, LS3, M4), compact (2 models: GG1, HJ12) and heavy-duty 3" (3 models: AS3, AK3, AL3). Sealing by mechanical seal or braided packing, integrated relief valve as standard, optional heating jacket. Manufactured in Cabreúva-SP, CRCC Petrobras qualified supplier — Family 6 (Rotating Equipment).

The FBEI line covers the same technical segment as Hayward Gordon IG Series pumps for viscous fluids with low pulsation. Differentiators: 10 models catalogued in published technical manual (MAN001-10) + FBEI-LS engineered-to-order for large capacities in asphalt, bitumen and heavy oils. Construction in cast iron, carbon steel or 316 stainless steel, with 40-80 mesh suction filter recommended. FB Bombas is a Brazilian manufacturer since 1944 with hydraulic test bench and CRCC Petrobras qualified supplier status.

Both are Brazilian manufacturers of positive-displacement internal gear pumps with CRCC Petrobras qualification. FB Bombas' FBEI has 10 catalogued models from 1" to 4" in technical manual MAN001-10 across three construction configurations, API 676 compliance, integrated relief valve and optional heating jacket (steam 185°C / thermal fluid 232°C, both at 10 bar). FBEI-LS engineered-to-order version for large capacities. In continuous operation under the same corporate identity since 1944, manufactured entirely in Cabreúva-SP.

Yes. The FBEI line is built per API 676 — Positive Displacement Pumps — Rotary, the American Petroleum Institute standard for rotary positive-displacement pumps used in refining and petrochemicals. The 10 catalogued models (1" to 4") follow the "gear within a gear" principle (rotor + idler + crescent), with integrated relief valve, sealing by mechanical seal or braided packing, and dimensions published in the official technical manual MAN001-10. In-house hydraulic acceptance test bench and Petrobras CRCC qualified supplier Family 6 — Rotating Equipment.

The FBEI uses a rotor with external teeth rotating inside a ring with internal teeth. Between rotor and ring, a fixed crescent-shaped element isolates the suction chamber from the discharge chamber. As the teeth separate, they create vacuum at the suction; as they re-engage, they transport fluid by positive displacement. Result: practically continuous flow, low pulsation and quiet operation — ideal for shear-sensitive viscous fluids such as chocolate, hot-melt adhesives and polymers.

Yes. All 10 FBEI pumps catalogued in the MAN001-10 manual feature an integrated adjustable relief valve, with no need for external devices on the discharge line. The adjustment screw cap is oriented toward the suction side. Additional manual recommendation: install a 40-80 mesh suction filter to protect against particulate. Pumps are self-priming and reversible when the application requires, with alignment tolerances of 0.05 mm radial and 0.6° angular.

Yes. FB Bombas is a qualified supplier in Petrobras' Cadastro de Registro Cadastral de Contratados (CRCC) under Family 6 — Rotating Equipment, eligible to supply industrial pumps (including the FBEI line) for Brazilian Oil & Gas projects. Active corporate registry 61.381.240/0001-78 publicly verifiable at Brazilian Federal Revenue. In continuous operation under the same corporate identity since 1944.

FBEI lead time is defined case by case by the application engineering team in Cabreúva-SP, considering the model (among the 10 catalogued), construction configuration (with-relief-valve, compact, heavy-duty 3"), materials (cast iron, carbon steel or 316 stainless steel) and heating jacket. Because manufacturing is fully Brazilian — in-house CNC machining and assembly with hydraulic test bench — lead times tend to be significantly shorter than equivalent imported pumps, with no dependency on international logistics, customs clearance or intercontinental transit time.

The FBEI technical quotation is requested directly from the application engineering team. Provide the fluid (with viscosity and temperature), required flow, discharge pressure, available NPSH and desired materials. The official technical manual MAN001-10 — with dimensions of all 10 catalogued models, operating principle, sealing options, installation requirements and recommended spare parts — is available at /en/technical-manuals/fbei in Portuguese, English and Spanish, free for download in PDF.