DPV Vertical centrifugal pumps

Summary

Product identification

The DPV series consists of vertical, multi-stage, centrifugal pumps designed and produced by DP-Pumps in Holland. These pumps are available with a DP-label or can be private labeled.

Operating limits

• Medium Temperature Range: -20 up to +140 °C
• NPSH-level: 0.6 up to 4.6 m
• Standard Pressure Durability (Shroud): PN 40
• Connection Pressure Classes: PN 16, 25, 40

Feed water / Product water

The DPV series is suitable for a wide range of applications, including:

• Domestic water supply
• Utility
• Cooling water transport
• Hot water applications
• Fire fighting
• Food, chemical and process industry
• Irrigation

The stainless steel base ensures the conservation of water quality.

Electrical

• Motor Efficiency: IE2 (Standard high efficiency motor)
• Insulation Class: F
• IP Rating: IP55
• Temperature Safeguard: PTC for motors ≥ 3 kW
• Voltage and Frequencies: Extensive choice available
• ATEX Motors: EEXe II T3, EEXd IIC T4 (available as upgrade)
• Explosion Proof Motors: Eexe II and Eexd II C Acc. II 2 G c T3-T4 (available as motor configuration)

Mechanical / hydraulic

The DPV pump series features a modular construction, allowing for customization to specific applications.

Key Features:

• Pump Type: Vertical, multi-stage, centrifugal
• Efficiency: Up to 79% (overall), with model-specific efficiencies detailed below.
• Hydraulic Design: Unique design for high pressure per impeller at high efficiency.
• Noise Reduction: Negligible noise due to optimized flow profile and special motor cooling fan design.
• Draining: E-design offers draining without residue.
• Pressure Measurement: Smart plugs allow separate measurement of suction and discharge pressure (∆p).

Materials:

• Hydraulic Assembly: High quality stainless steel AISI 304 or AISI 316
• Smart Plugs: Stainless steel AISI 304 or AISI 316
• Solid Construction Shroud: Stainless steel
• Base Plate: Powder coated 100 μm cast iron (standard), Stainless steel (optional)
• Pump Casing: Cast material
• Connections: Optional stainless steel AISI 304 or AISI 316

Shaft Seals:

• Options: Fixed, Easy Access, Cartridge
• Elastomers: Extensive choice to suit a wide range of media.
• Maintenance: Exchangable without disassembling the pump.

Connections:

• Pressure Classes: PN 16, 25, 40
• Types: External thread with built-in non return valve, counter flange, victaulic, triclamp, round flange
• Standards: DIN, JIS, ASME

50Hz Performance Data

The DPV series offers a wide range of performance characteristics for 50Hz operation:

• Capacity Range: From 0.2 m³/h (DPV 2) up to 112.8 m³/h (DPV 85).
• Nominal Capacity at Qopt.: From 1.9 m³/h (DPV 2) up to 85.7 m³/h (DPV 85).
• Maximum Pump Pressure: From 58 m (DPV 10 4P) up to 256 m (DPV 6).
• Maximum Pressure at Qopt.: From 43 m (DPV 10 4P, DPV 15 4P) up to 200 m (DPV 6).
• NPSH at Qopt.: From 0.6 m (DPV 15 4P, DPV 40 4P) up to 3.0 m (DPV 25 2P).
• Maximum Efficiency: From 54% (DPV 2) up to 79% (DPV 85).

See the official PDF for exact tabulated values for each model (DPV 2, DPV 4, DPV 6, DPV 10 2P, DPV 10 4P, DPV 15 2P, DPV 15 4P, DPV 25 2P, DPV 25 4P, DPV 40 2P, DPV40 4P, DPV60 2P, DPV60 4P, DPV 85).

60Hz Performance Data

The DPV series also provides a comprehensive range of performance for 60Hz operation:

• Capacity Range: From 0.24 m³/h (DPV 2) up to 132 m³/h (DPV 85).
• Nominal Capacity at Qopt.: From 2.3 m³/h (DPV 2) up to 100 m³/h (DPV 85).
• Maximum Pump Pressure: From 57 m (DPV 15 4P) up to 255 m (DPV 6).
• Maximum Pressure at Qopt.: From 31 m (DPV60 4P) up to 201 m (DPV 2).
• NPSH at Qopt.: From 0.9 m (DPV 40 4P, DPV60 4P) up to 4.6 m (DPV 25 2P).
• Maximum Efficiency: From 54% (DPV 2) up to 79% (DPV 85).

See the official PDF for exact tabulated values for each model (DPV 2, DPV 4, DPV 6, DPV 10 2P, DPV 10 4P, DPV 15 2P, DPV 15 4P, DPV 25 2P, DPV 25 4P, DPV 40 2P, DPV40 4P, DPV60 2P, DPV60 4P, DPV 85).

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

Official datasheet (PDF)

Lenntech datasheet mirror