VLSE (Vertical In-Line Split Coupled w/ MLE)

Inline Split Coupled Variable Speed Pumps

PACO's VLSE by Grundfos is vertically mounted, split-coupled, in-line pump with integrated motor, VFD drive and control. VLSE pump models provide increased energy savings due to on-demand performance.

The VLSE incorporate all essential components into one product and features a VLS pump, MLE motor and integrated variable frequency drive and control, all made by one supplier. Together with various sensors, these products allow for dynamic and intelligent solutions to many industrial and commercial building applications. The innovative solution cuts planning, purchasing, installation and commissioning costs. The integrated variable frequency motor (MLE) is available with permanent magnet motors and exceed IE5 efficiency levels set by International Electro Technical Commission, currently the highest efficiency worldwide for electrical motors. NEMA Premium Efficient motors are equivalent to IE3, meaning these MLE motors are two levels above NEMA Premium Efficiency. The combined motor and VFD efficiency is higher than a NEMA Premium motor alone.

Features & Benefits

• Plug-and-pump solution speeds installation, commissioning and startup due to integrated components
• Provides seamless integration with Grundfos MLE integratedmotor, drive and control for an all-in-one solution (VLSE)
• Large, graphical display control interface (HMI) on MLE motor allows control of all settings without need of separate interface device (GO Remote) and provides user friendly operation
• Isolation pads between the motor and CUE mounting plate to absorb vibration and heat transfer (VLSC)
• Axially split coupling enhances ease of service and alignment
• Spacer coupling allows rapid mechanical seal access without motor removal for service friendly design
• Double volute design extends seal and bearing life, minimizes noise and vibration, and improves operating efficiency No inertia base required
• Vertical shaft configuration promotes longer seal and bearing life
• No coupling alignment or bearing frame assembly needed
• Heavy duty cast and machined motor bracket creates rigid and reliable  mounting surface with easy alignment
• Case wear rings reduce maintenance costs and maintain high efficiency.
• Suction baffle creates a smooth, quiet pump oper
• No flexible connectors or foundation grouting needed
• Francis Vane impeller design increases efficiency and reduces NPSH required
• Saves energy, optimizes efficiency and lowers operating cost
• Grundfos GO lets you use your smart phone to access interface, regardless of pump location 

ULTIMATE FLEXIBILITY AND EFFICIENCY

The MLE motors can be operated to meet any individual needs for a specific solution. This makes them an excellent choice for a number of applications within heating, cooling, ventilation and industrial processes, each of which are
characterized by varying demands, different control needs, and varying number of operating hours.

Applications

• Industrial Heating
• Chilled Water
• Condensed Water
• Hot Water
• District Heating / Cooling
• Boiler / Hydronic Heating
• Air Conditioning
• Cooling Towers

For an intelligent pumping solution, the motor is half the story. Our E-motors (MLE) are frequency converter controlled motors that have been designed specifically for use with Grundfos pumps, and they feature unique functionalities that allow for complete system optimization.