DPV Heavy Duty brochure

Summary

Product identification

The Heavy Duty DPV is a multi-stage centrifugal pump.

• Range: VCF 10/15 B (2/4/6 follow later)

Operating limits

• Pressure class: PN16/25 optionally PN40
• Medium temperature: -20°C - 140°C

Feed water

The Heavy Duty DPV is designed for demanding operating conditions in applications such as boiler feed and RO, addressing major causes of pump failure:

• Air in the medium (e.g., due to cavitation), which reduces lubricating properties.
• Imbalance and vibrations from 'running off the graph' or cavitation.
• Short dry running, leading to heating and wear.
• Thermo shock, causing bearing material failure.
• Extreme axial forces (upthrust) from sudden operation outside the graph.

A Low NPSH impeller in the first stage is standard for the Low NPSH-r version, providing greatly improved NPSH properties to prevent or delay cavitation.

Electrical

• ATEX EEXe II T3/EEXd IIC T4 versions are available.
• Various voltage versions are offered.

Mechanical / hydraulic

The Heavy Duty DPV is equipped as standard with:

• Low NPSH impeller in the first stage.
• Tough TUC/TUC bearings in a reinforced construction.
• Cartridge mechanical seal, available in a number of material versions depending on the medium.

Other available options include:

• Electrolytically polished and passivated hydraulic package.
• Acceptance and test certificates (including 2.1; 2.2; 3.1 and LR, BV, ABS, DNV GL 3.2).
• Seals with various certifications.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the official OEM PDF. Contractual data must always match the specific OEM PDF revision used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror