Thermal oil pump FBOT 300-340
Review this model’s connections, technical data and documentation. Provide the thermal oil and operating point for a selection tailored to your process.
Data for technical selection
FBOT 300-340 · Model identified in the MTEC-16/00 manual selection chart. Engineering confirms the curve and configuration for your thermal oil circuit.
Selection for your circuit
Provide flow, head, oil, temperature, speed and suction conditions. Engineering uses these inputs to confirm the curve, required NPSH, power and impeller for the supply.
- Nominal discharge
- DN 300
- Suction
- On request
- Impeller diameters
- On request
- Performance curve
- On request
Series temperature limit: 350 °C. Review series limits and the manual before defining the equipment. Catalogue maxima do not describe a single operating point.
Performance and discharge pressure
Preliminary selection charts and Figure 1 of the manual, converted to light lines from the originals. They are series selection maps, not individual curves for this model.
Selection chart · large capacity · 1,750 rpm
FBOT 300-340 appears in this manual chart at 1,750 rpm and 60 Hz. The 3,500 rpm charts published in the manual and catalogue do not include large-capacity models, and the manual gives no dimensional table or individual curve for this model.
These maps are not individual performance curves. On their own, they do not specify power, required NPSH or an impeller for your duty point. Series maxima do not describe one simultaneous operating point either.
Built for thermal oil
Manual MTEC-16/00 describes the series construction, sealing arrangement and pump selection conditions.
Dual sealing
Sealing with graphite packing and a mechanical seal. The configuration and maintenance instructions must match the supplied equipment.
Back pull-out maintenance
Back-pull-out construction — allows bearing frame removal without disconnecting/misaligning piping. Simplifies maintenance.
Closed radial impeller
Closed radial impeller, single suction.
Casing and bearing frame
Spiral-shaped body, cast in single piece without feet. Bearing frame with 2 bearings — one oil-submerged, other shielded and grease-lubricated.
Manual MTEC-16/00 (§2.3) describes the seal immersed in bearing housing oil; the current catalogue (page 2) refers to the thermal oil itself. Confirm your pump configuration and the corresponding lubrication and maintenance instructions with engineering.
Circulating thermal oil
FBOT is intended for organic thermal oil circuits. Specify the oil and temperature and confirm component compatibility; the fluid must not contain abrasive particles.
Explore series applications and selection criteriaDimensions on request FBOT 300-340
The manual does not publish an individual dimensional table for this model. Request the installation drawing and specific curve before defining the baseplate, piping and drive.
Information to provide
Share the available process data. With it, FB Bombas engineering checks the duty point on the 1,750 or 3,500 rpm curve, the discharge pressure allowed at the operating temperature, the impeller material and the motor power reserve, and specifies the model, configuration and documentation for supply.
Documentation FBOT
The product catalogue and technical manual are in Portuguese. Review the available drawings and confirm the supplied configuration and dimensions in the quotation.
Technical manual · MTEC-16/00
Manual MTEC-16/00 describes the series construction, sealing arrangement and pump selection conditions.
Product catalogues
These catalogues complement the technical manuals. For sizing and operating limits, consult the specific documentation and engineering team.
Questions about FBOT 300-340
Technical and commercial information to prepare your selection.
Where does FBOT 300-340 appear in the technical documentation?
In the quick selection chart on page 3 of manual MTEC-16/00, at 1,750 rpm and 60 Hz, which covers the large-capacity models. The manual publishes no dimensional table or individual curve for FBOT 300-340; engineering confirms the curve, impeller, power and dimensions during selection.
What does the code FBOT 300-340 mean?
Under the designation on page 1 of the manual, the first number is the nominal diameter of the discharge flange in mm and the second is the nominal impeller diameter in mm. For FBOT 300-340: discharge DN 300 and a nominal impeller diameter of 340 mm.
Where can FBOT 300-340 be used?
The manual describes the series for pumping organic thermal oils and states that it can be used in the pharmaceutical, chemical, food, textile and plastics industries, always in the thermal oil circuit, not for the process product. The fluid must not contain abrasive particles or materials that chemically attack pump components.
What motor power reserve does the manual specify for FBOT 300-340?
Table 2 of the manual (page 5) relates the power required by the pump to the motor reserve: up to 2 cv, approximately 20% (minimum 1.5 cv); up to 20 cv, approximately 15%; above 20 cv, approximately 10%. The required power comes from selection at the duty point.
Which impeller materials and peripheral speed limits apply to FBOT 300-340?
Item 5 of the manual (page 6) limits peripheral speed by impeller material: cast iron up to 40 m/s, ductile iron up to 60 m/s, carbon steel up to 60 m/s and stainless steels up to 80 m/s. The material and speed for FBOT 300-340 are defined during selection.
Your circuit. An engineering selection.
Share the available process data. With it, FB Bombas engineering checks the duty point on the 1,750 or 3,500 rpm curve, the discharge pressure allowed at the operating temperature, the impeller material and the motor power reserve, and specifies the model, configuration and documentation for supply.
Information to provide
- Thermal oil, temperature and fluid properties.
- Flow, total head and intended speed.
- Suction pressure, available NPSH and start-up conditions.
- Flange standard (ANSI B16.42 150 lbs or DIN EN 1092-2 PN16) and intended drive.
- For a replacement: complete code, nameplate data and drawing of the installed pump.
Nearby models FBOT
Same DN or adjacent discharge diameter. Compare the technical data before considering a replacement.
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