A vertical, immersible multistage centrifugal pump engineered for reliable transfer of petroleum liquids (crude oil, gasoline, diesel) in oil production sites, refineries and power plants. Designed for tank- or pit-mounted installation, the pump delivers long service life, stable hydraulic performance and reduced site infrastructure requirements.
Key features
- Performance range: flow 6–150 m3/h; head 15–600 m.
- Operating temperature: -40 °C to 80 °C.
- Fluid viscosity: up to 200 cSt; higher-viscosity or special conditions can be accommodated by custom designs.
- Vertical, segmented multistage centrifugal construction for high heads in a compact submerged configuration.
- Axial suction from the bottom with horizontal discharge — suitable for immersion inside storage tanks or sumps.
- Bronze impellers designed for continuous immersion and corrosion resistance in hydrocarbon fluids.
- Axial thrust is handled by a balance drum; a thrust ball bearing balances residual axial loads for reliable operation.
- Shaft sealing: labyrinth throttling decompression plus packing as standard; mechanical seal versions available to minimize leakage.
- Small recirculation from an overflow pipe back to the suction tank to protect internal clearances and seals.
- Vertical explosion-proof motor (EX d IIB T4) with counterclockwise rotation viewed from motor end, enabling safe operation in hazardous (explosive atmosphere) environments.
- Direct drive via elastic shaft coupling for simple, low-maintenance power transmission.
- Self-priming at start-up (no separate priming/irrigation pump required).
- Suitable for outdoor installation and for use directly in tanks without a dedicated pump room — reducing civil works and operating costs.
Why use this pump
This immersible multistage centrifugal design is optimal where high discharge head, compact footprint and safe operation in flammable atmospheres are required. Its submerged configuration reduces pipework and infrastructure on site, while the explosion-proof motor and robust sealing options address safety and leakage concerns typical of hydrocarbon handling applications. Unit can be specified to match required duty points and special-site conditions.
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