BN Process Pumps

The BN standardised process pumps are engineered to operate under the most demanding industrial conditions, ensuring absolute compatibility with the transferred fluid through a wide range of mechanical seals and material options.

Key design features:

  • Standardised dimensions: Fully compliant with ISO 2858 – EN 22858 standards to significantly facilitate maintenance tasks.

  • Modular construction: Baseplate-mounted design consisting of three independent components (pump, coupling, and motor), allowing for straightforward, part-by-part disassembly.

This serie is designed to fit on ISO2858 for high performance.
All internal components are manufactured in a material
anticorrosive.

The BN series centrifugal process pumps are meticulously engineered to handle the broadest possible spectrum of aggressive and corrosive liquids across the chemical industry and allied sectors.

Designed with an uncompromising focus on reliability and standardisation, these pumps strictly comply with ISO 2858 dimensional standards. This adherence ensures seamless integration into existing pipework and significantly simplifies maintenance protocols within complex industrial plants.

Surface Protection

To ensure maximum durability in harsh industrial environments, all external metallic components feature a high-performance, anti-corrosive polyurethane paint finish, providing exceptional resistance against chemical fumes and external degradation.

Construction details

  • Design: Bare-shaft pump configuration, robustly mounted on a heavy-duty baseplate.

  • Standardisation: Fully compliant with ISO 2858 – EN 22858 specifications.

Thermoplastic materials available

Engineered from solid plastics to guarantee absolute chemical compatibility. Options include:

  • PP (Polypropylene)

  • PE (Polyethylene)

  • PVDF (Polyvinylidene Fluoride)

  • E-CTFE (Ethylene Chlorotrifluoroethylene)

Mechanical seal configurations

Tailored sealing solutions to prevent leakage and handle varying degrees of fluid toxicity and abrasiveness:

  • Single mechanical seal

  • Double external mechanical seal

  • Double internal mechanical seal

Customisation Options

  • High-Pressure Configuration: Volute casing and flanges specially adapted to withstand operating pressures up to 16 bar.

  • Casing Drain: Optional drain point for safe fluid evacuation during maintenance.

  • Installation Layout: Available in a vertical pump arrangement for space-constrained installations.

System accessories

  • Complete baseplate assembly, including flexible coupling and safety guard.

  • Electric motors (tailored to specific site power and ATEX requirements).

  • Frequency inverters (VFD) for precise flow and process control.

  • Priming pots for systems requiring suction lift capabilities.

Performance limits & parameters

The BN series offers a versatile hydraulic coverage designed for heavy-duty chemical processing. The performance curves illustrate the operating range based on standard motor speeds.

Chart Legend:

  • Q (X-Axis): Flow rate in cubic metres per hour (m³/h). Maximum capacity up to 1000 m³/h.

  • H (Y-Axis): Discharge head in metres (m). Maximum head up to 150 m.

  • 2900 rpm: Operating range for high-speed motor configurations.

  • 1450 rpm: Operating range for standard-speed motor configurations.

BN Process Pumps
Process pump bn diagram
Process pump diagram

The performance curves above illustrate the comprehensive hydraulic coverage of the BN series process pumps at standard motor speeds of 2900 rpm and 1450 rpm. These selection charts enable engineers to pinpoint the optimal pump size based on specific flow rate (Q) and discharge head (H) requirements.

The high-speed configuration delivers exceptional heads of up to 150 m, whilst the 1450 rpm models are engineered for maximum flow capacities reaching 1000 m³/h in heavy-duty chemical applications.

Frequently asked questions – BN Process Pumps

Due to their exceptional chemical resistance, BN process pumps are predominantly installed in the chemical, pharmaceutical, and fertiliser industries.

Furthermore, they provide highly reliable fluid transfer solutions for waste water treatment facilities, potable water plants, desalination operations, the steel industry and surface treatment, mining, and various applied engineering projects handling highly corrosive liquids.

Yes, all BN centrifugal process pumps are fully compliant with ISO 2858 and EN 22858 dimensional standards. This strict standardisation ensures seamless integration and allows engineers to directly replace existing equipment without the need to modify current pipework, significantly reducing plant downtime.

To guarantee absolute chemical compatibility with aggressive fluids, the wetted components are manufactured from solid, high-quality thermoplastics. Depending on the specific application and fluid toxicity, available materials include Polypropylene (PP), Polyethylene (PE), Polyvinylidene Fluoride (PVDF), and Ethylene Chlorotrifluoroethylene (E-CTFE).

The BN series features a highly efficient modular design. It is a bare-shaft pump mounted on a heavy-duty baseplate, consisting of three independent components: the pump casing, the flexible coupling, and the electric motor. This layout allows maintenance teams to dismantle and service individual parts without disturbing the main piping infrastructure.

Engineered for heavy-duty industrial processing, the BN pump series offers a highly versatile operating range. Depending on the specific model and motor configuration (1450 rpm or 2900 rpm), these pumps can efficiently deliver flow rates up to 1000 m³/h and achieve discharge heads of up to 150 metres.

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