Hydr-Unit Premium Line

Summary

Product identification

The Duijvelaar Pumps Hydro-Unit Premium Line is a pressure booster system available in several configurations:

• Hydro-Unit Premium Line DOL CC: Fixed speed pressure booster system with Megacontrol pump control.
• Hydro-Unit Premium Line VFD CM CC: Variable speed pressure booster system with Megacontrol pump control, frequency inverter in the control cabinet.
• Hydro-Unit Premium Line VFD MM CC: Variable speed pressure booster system with Megacontrol pump control, frequency inverter mounted on the IE5 motor.

These systems are designed for building services water supply.

Main applications

• Pressure boosting

Fluids handled

• Drinking water
• Service water
• Cooling water
• Fluids not chemically or mechanically aggressive to the materials

Operating limits

• Flow rate (Q): ≤ 65.4 m³/h (≤ 18.2 l/s) (for a system with three pumps without stand-by pump)
• Head (H): ≤ 134 m
• Fluid temperature: ≥ 0 °C to ≤ +60 °C
• Operating pressure (p): ≤ 16 bar
• Inlet pressure (pinl): ≤ 5 bar (contact manufacturer for higher inlet pressures)

Design details

The systems are compact, mounted on a common base frame, and feature one or more vertical high-pressure pumps. Hydraulic components are made of stainless steel / brass for high operating reliability.

Multiple pump system features:

• Check valve per pump
• Discharge-side gate valve per pump
• Suction-side gate valve per pump

Drive and control:

• Hydro-Unit Premium Line DOL CC: Power contactor per pump. Electric motors with Efficiency class IE3 to IEC 60034-30.
• Hydro-Unit Premium Line VFD CM CC: One frequency inverter per pump, located in the control cabinet. Electric motors with Efficiency class IE3 to IEC 60034-30.
• Hydro-Unit Premium Line VFD MM CC: One frequency inverter per pump, mounted on the motor. Magnetless synchronous reluctance motors with Efficiency class IE5 to IEC 60034-30.

Installation:

• Stationary dry installation

Automation:

• Control cabinet IP54 (sheet steel housing, RAL 7035)
• Megacontrol micro-processor control unit
• Graphical display with operating panel
• Three LEDs signalling operating status (Green: ready, Yellow: warning, Red: alert)
• Lockable master switch (repair switch)
• Motor protection switch per pump
• Service interface for Servicetool
• Integral dry running protection via sensor
• 2 volt-free contacts for reporting warnings and alerts

Functionality:

• DOL CC: Controls and monitors 2 or 3 pumps. Pumps are sequenced in/out based on pressure demand, with automatic alternation for equal operating hours.
• VFD CM CC, VFD MM CC: Controls and monitors one or more pumps, each with a frequency inverter, to ensure constant discharge pressure. Pumps are started/stopped automatically based on demand, with stand-by pump inclusion in the alternating cycle.

Materials

• Pump casing: 1.4308
• Pump shroud: 1.4301
• Hydraulic system: 1.4301
• Mechanical seal: To EN 12756
• Elastomer: EPDM
• Baseplate: Steel, powder-coated
• Shut-off valve: Brass, nickel-coated
• Swing check valve: POM
• Accumulator, connection: 1.4401
• Membrane: Approved for drinking water

Product benefits

• Suitable for drinking water, manufactured under stringent hygienic conditions.
• Easy and fast commissioning of ready-to-connect, pre-assembled and tested systems.
• Corrosion resistance provided by powder-coated materials and stainless steel.
• Integral dry running protection for reliable operation.
• Remote monitoring through connection to building management system.
• VFD CM CC, VFD MM CC models offer energy-efficient operation and constant pressure via speed control of all pumps.
• DOL CC models feature smart operating time calculation for energy-efficient operation without exceeding the maximum frequency of starts.

Certifications

• France: Approved in accordance with French drinking water regulation.
• United Kingdom: Approved in accordance with UK drinking water regulation.
• Germany: Globe valves and swing check valves approved in accordance with German drinking water regulation.

Electrical

• Voltage: 3 × 400 V ± 10 %
• Frequency: 50 Hz
• Enclosure: IP55
• Sound pressure level: Ranges from 55 dB(A) to 71 dB(A) depending on the model.
• Motor efficiency class: IE- (not specified for some lower power models), IE3, or IE5 (for VFD MM CC models).
• Frequency of starts: Up to 50 x/h for DOL CC models; not applicable for VFD models.
• Power (PN): Ranges from 0.37 kW to 7.50 kW per pump.
• Current (IN, Imax System, Imax Overcurrent protection): Values vary significantly by model and number of pumps.

See the official PDF for exact tabulated values for specific models regarding power, current, and weight.

Mechanical / hydraulic

• Connections: DN1 and DN2 connections are G 1 1/2, G 2, or PN 16, depending on the model.
• Dimensions: Length (L1, L2, Lt), Height (H1, H2, Ht), and Width (W1, W2, W3, Wt) vary significantly by the number of pumps, pump size, and number of stages.

See the official PDF for exact tabulated dimensions and connection details for specific models.

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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 complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror