The BT series vertical centrifugal pumps are heavy-duty, single-stage sump pumps engineered for the safe handling of corrosive fluids. Their defining structural advantage over standard process pumps is their sealless design, making them an exceptionally reliable solution for complex tank emptying applications.

Key Design Features:

  • Sealless technology: The complete absence of a mechanical seal eliminates the risk of external leakage.

  • Continuous dry running: Capable of operating completely dry without any time limitation or risk of thermal damage.

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

The BT series features an advanced hydraulic design derived directly from our highly successful BN standardised process pumps. However, it is specifically engineered for vertical sump installations where the volute casing is fully submerged within the pumped liquid. This innovative configuration inherently eliminates the need for a mechanical seal, thereby completely eradicating the risk of external product leakage and all its associated maintenance challenges.

A critical operational advantage of this sealless architecture is its absolute ability to run dry indefinitely. Because there are no mechanical seal faces to generate friction, there is zero risk of temperature elevation or component failure during dry-running scenarios, ensuring maximum plant safety.

Installation flexibility & sump depths

Dimensionally, the BT series has been meticulously studied to offer maximum adaptability for various tank sizes. The standard configuration can be seamlessly adapted for sump depths of up to 3,000 mm without requiring a suction pipe. For deeper installations, the pump can be fitted with a specific suction extension pipe, extending its operational reach to depths of up to 4,500 mm.

Construction & design details

  • Cantilevered architecture: Features a reinforced vertical design fully supported from the top flange, entirely avoiding the need for immersed bearings or submerged mechanical components.

  • Robust construction: Precision-machined from solid thermoplastics to ensure maximum structural rigidity and absolute corrosion resistance against the most aggressive fluids.

  • Reinforced column design: Specially engineered to guarantee absolute stability and minimise vibration, even under high hydraulic loads.

  • Drive system: Utilises a direct motor coupling with precise vertical alignment for highly efficient power transmission.

  • Mounting flexibility: Available with optional customisable baseplates or bespoke mounting flanges to facilitate straightforward, direct tank installation.

Performance & operating range

  • Configuration: Heavy-duty, single-stage vertical sump pump engineered for continuous industrial service.

  • Maximum flow rate: Highly capable hydraulic design delivering up to 450 m³/h (1,980 gpm).

  • Maximum discharge head: Exceptional pressure capabilities reaching up to 100 m (328 ft).

  • Operating depth: Designed for direct sump immersion depths of up to 1.2 metres (47 inches).

  • Dry-Running capability: The advanced sealless and bearing-free lower end allows for safe, intermittent dry-running operation without any risk of thermal or mechanical damage.

  • Application suitability: These performance parameters make the BT series the ideal solution for environments dealing with highly aggressive chemical compositions or unpredictable, variable liquid levels.

Thermoplastic materials available

Manufactured from premium solid plastics to guarantee absolute chemical compatibility:

  • PP (Polypropylene)

  • PE (Polyethylene)

  • PVC (Polyvinyl Chloride)

  • PVDF (Polyvinylidene Fluoride)

Configuration & mounting options

  • Customisable baseplate: Support plate and mounting flange precisely tailored to match the customer’s specific tank or sump flange, facilitating a straightforward drop-in installation.

  • Suction extension: Option to fit a suction extension pipe to reach greater emptying depths (up to 4,500 mm) without the need to lengthen the main pump shaft.

System accessories

  • Integrated suction strainers to protect the hydraulic components against the ingress of large suspended solids.

  • Standardised electric motors, with configurations available certified under the ATEX directive for safe installation in areas with explosion risks.

  • Level sensors and control systems to fully automate the sump emptying cycles.

Dimensional drawing

The schematic above details the critical installation parameters and general arrangement of the BT series vertical sump pumps. This dimensional drawing enables plant engineers to accurately verify mounting flange specifications, total equipment height, and the required sump depth clearances.

Designed for maximum installation flexibility, the customisable baseplate and vertical cantilevered architecture ensure a precise drop-in fit for both new and existing tank configurations.

Key improvements for the BT series:

  • “Vertical sump pumps” & “Cantilevered architecture”: Reinforces the specific SEO keywords for this pump model.

  • “Sump depth clearances”: Crucial detail for vertical pumps that wasn’t relevant for the horizontal BN/BV models.

  • “Drop-in fit”: A highly valued term in the industry for equipment that is easy to install in existing tanks.

Diagrama Vertical Pump BM
Vertical pump BM

The BT series provides exceptional installation versatility to accommodate diverse plant layouts, offering both internal and external mounting configurations.

The internal setup submerges the hydraulic components directly within the sump for optimal space efficiency, whilst the external arrangement positions the pump alongside the tank to facilitate easier maintenance access. Both highly adaptable configurations ensure completely sealless, leak-free operation when handling aggressive industrial fluids.

Frequently asked questions – BT Vertical Pumps

Due to their extreme chemical resistance and sump design, BT pumps are widely used in the chemical, petrochemical, and pharmaceutical industries. They provide the ideal solution for tank emptying, spill collection sumps, and the transfer of corrosive effluents.

Furthermore, they are extensively utilised in waste water treatment plants, electroplating, metal surface treatment, and the mining industry, where the safe handling of aggressive liquids with variable levels is essential.

Yes, this is one of its primary advantages. Its cantilever design completely eliminates the need for submerged bearings and dispenses with mechanical seals. Since there are no contact friction surfaces, the pump can operate dry—either continuously or intermittently—with total safety and no risk of thermal or mechanical failure.

Engineered for heavy-duty industrial service, the BT series offers exceptional hydraulic performance. These pumps are capable of delivering a maximum flow rate of up to 450 m³/h and reaching discharge heads of up to 100 metres, ensuring reliable flow even in the most demanding installations.

The standard cantilever configuration is designed for a direct immersion depth of up to 1.2 metres (1200 mm). Additionally, their versatility allows for both internal mounting (inside the tank to save space) and external mounting, adapting perfectly to existing infrastructure thanks to our customisable baseplates.

To ensure absolute corrosion resistance, all wetted parts—including the volute casing and the coated shaft—are precision-machined from high-quality solid thermoplastic blocks. Material options include Polypropylene (PP), Polyethylene (PE), Polyvinyl Chloride (PVC), and Polyvinylidene Fluoride (PVDF).

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