Complete System Features

The SP system

Grundfos is able to equip any application with a complete SP system to optimise performance and energy efficiency. An SP system combines:

  • A high-grade stainless steel SP pump
  • A dedicated MS/MMS motor
  • An electronic motor protection (MP204) or a frequency drive (CUE)
  • Monitoring (GRM)

Features & Benefits

A complete SP system offers the following features and benefits:

  • High energy efficiency
  • Reliable performance over its entire life time
  • Time-saving installation
  • Easy installation
  • Easy operate
  • Pump & motor protection

The components

All components in an SP system have been designed by Grundfos to work perfectly together. In addition to the 100% high-grade stainless steel SP pump a complete system consists of the following components below:

The motor

The motor

The corrosion resistant MS and MMS submersible motors have been specially developed for the SP range to match the best efficiency point of the pumps:

•    Canned type MS motors – for 4″ and 6″ pumps from 0,37 kW to 30 kW
        - Hermetically sealed
        - Available in high-grade stainless steel in two variants: EN 1.4301/AISI 304 for drinking water and EN 1.4539/AISI 904L for aggressive water, e.g. seawater
•   Rewindable type MMS motors – for 6″, 8″ and 10″ pumps from 5,5 kW to 250 kW
        - Available in high-grade stainless steel in three variants: EN 1.4301/AISI 304 for drinking water, EN 1.4401/AISI 316 for brackish water and EN 1.4539/AISI 904L for aggressive water, e.g. seawater
•    NEMA standard drive end on 4″, 6″ and 8″

Frequency drive (CUE)

Frequency drive (CUE)

Grundfos’ frequency drive (CUE) is designed for intelligent speed control of pumps:

•    Adapts automatically to changes in the system
•    Ensures constant pressure, constant flow, constant water level or constant temperature
•    Efficient control protects pump, motor and electronics against stress and overload
•    Reduces life cycle cost and CO2 emission through energy-efficient operation
•    Soft start ensures long life and no water hammering
•    Easy setting via intuitive start-up guide
•    Easy connection to Grundfos Remote Management (GRM) and communication to SCADA systems
•    Radio Frequency Interference filter ensures clear signal in domestic areas

Motor protection (MP204)

Motor protection (MP204)

The electronic motor protection MP204 is ideal where a frequency drive is not installed:

•    Protects pump motors against variations in power supply
•    Stops the pump before dry-running to prevent damage
•    Performs insolation resistance test before start of the motor
•    Monitors parameters like temperature, overvoltage/undervoltage and power consumption
•    Easy to install, easy to set up and easy to operate
•    Easy to connect to Grundfos Remote Management (GRM)
•    Compatible with any SCADA system via CIU

Grundfos Remote Management (GRM)

Monitoring (GRM)

Grundfos Remote Management (GRM) offers 24 hour remote monitoring of the system:

•    Cost-effective monitoring and management of pump installations
•    Full overview of operation, performance and trends
•    Live monitoring, analysis and adjustments
•    Monitoring of energy consumption 
•    Reduced need for onsite inspection
•    Alarms and warnings as SMS/email
•    Notification when service is due