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Grundfos

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Grundfos

Grundfos is a Danish company and one of the largest pump manufacturers in the world. With over 80 years of experience and manufacturing in more than 55 countries, Grundfos supplies centrifugal pumps, circulators, submersible pumps, dosing pumps, and complete water systems for building installations, industry, water management, and HVAC. The company produces approximately 17 million pumps per year and is the market leader in energy-efficient pump technology.

The Grundfos range includes the CM/CME series multistage pumps for pressure booster systems, TP/TPE circulator pumps for heating systems, CR/CRE vertical multistage pumps for high-pressure industrial applications, SP/SQE submersible pumps for groundwater abstraction, NB/NBE end-suction pumps for industrial systems, BM/BMB submersible pumps for wastewater, and DMX dosing pumps for chemical dosing.

Grundfos was the first manufacturer to fully integrate IE5 ultra-premium efficiency into its pump products via the MGE and IE5 motor platform. Modern Grundfos pumps feature integrated frequency inverters (ECM technology) that automatically adapt energy consumption to actual demand. Grundfos calculates that its pumps achieve up to 50% energy savings compared to conventional pumps.

The Grundfos iGRUNDFOS and DEDICATED CONTROLS series offer advanced pump control with IoT connectivity, remote monitoring, predictive maintenance, and integration into SCADA and BMS systems. This enables continuous optimization of pump system performance.

At Verkopershulp.nl we carry over 2,381 genuine Grundfos parts, including mechanical seals, impellers, pump housings, motors, O-rings, and electronic modules. As an authorized distributor we guarantee fast delivery and technical support for all Grundfos pump applications.

History

Grundfos was founded in 1945 by Poul Due Jensen in Bjerringbro, Denmark. From a small workshop the company grew rapidly through innovative centrifugal pump designs for post-war European industry. In the 1950s Grundfos expanded into heating circulators, providing a revolutionary solution for central heating systems across Europe. From the 1960s to the 1980s Grundfos grew internationally with the opening of manufacturing facilities in Germany, America, Asia, and eventually worldwide. Key innovations include the introduction of the first integrated circulator pump with motor, the UPS series installed billions of times, and later the electronic ECM circulators. Today Grundfos is a cooperative company (Poul Due Jensen Foundation holds majority) with approximately 20,000 employees worldwide and annual revenues exceeding €4.5 billion. The company is investing heavily in smart water technology, water recycling, and energy-efficient pump engineering for the future challenges of global water supply.

Product Categories

  • Bearing
  • Cable
  • Centrifugal Pump
  • Connector
  • Control Panel
  • Controller
  • Coupling
  • Diaphragm Pump
  • Dosing Pump
  • Fan & Blower
  • Flow Meter
  • Impeller
  • Meter
  • Module
  • Motor
  • Pressure Sensor
  • Pump
  • Regulator
  • Seal & Gasket
  • Sensor
  • Servo Motor
  • Spring
  • Switch
  • Transmitter
  • Valve

Applications

  • Central Heating & Hot Water Circulation
  • HVAC & Climate Control
  • Industrial Process Water Circulation
  • Water Treatment & Drinking Water Production
  • Fire Protection & Sprinkler Systems
  • Irrigation & Agricultural Water
  • Groundwater Abstraction & Borehole Pumps
  • Chemical & Pharmaceutical Dosing
  • Seawater Desalination & Reverse Osmosis
  • Cooling Water Installations
  • Wastewater Treatment & Sewage
  • Food & Beverage Production

Frequently Asked Questions

How do I select the correct Grundfos pump for my application?
Select a Grundfos pump based on the required flow rate (m³/h), head (m), medium (water, chemicals, wastewater), temperature, and connection sizes. Use the Grundfos Product Center tool (pim.grundfos.com) for exact model selection and energy consumption calculation. Our specialists at Verkopershulp.nl will help with the right choice.
How do I replace the mechanical seal of a Grundfos CM pump?
Remove the motor from the pump head by unscrewing the mounting bolts. Remove the impeller (left-hand thread in many models) and extract the old mechanical seal. Clean the seal chamber and install the new seal (do not use tools on ceramic faces). Lightly lubricate the NBR O-ring before assembly. Verkopershulp.nl supplies genuine Grundfos overhaul kits per pump model.
What is the difference between Grundfos UPS and UP circulators?
Grundfos UPS is the classic three-speed circulator with fixed speed (three switchable steps). The UP series is similar but available in single-phase and three-phase versions for higher flow rates. The successor, the MAGNA3 series, offers variable speed control (AUTOADAPT) for maximum energy savings. Grundfos recommends replacing older UPS with a MAGNA3 for 60-80% energy savings.
Are pump parts from other manufacturers compatible with Grundfos?
While generic mechanical seals and O-rings of comparable dimensions are sometimes compatible, Verkopershulp.nl recommends using genuine Grundfos parts for guaranteed performance and service life. Grundfos impellers and pump housings are specifically manufactured for exact hydrodynamic performance and cannot be replaced by generic alternatives.
How does the Grundfos AUTOADAPT function work?
AUTOADAPT is Grundfos's self-optimization technology that automatically determines the most energy-efficient operating mode based on actual system demand. The pump analyzes the pressure profile and sets proportional pressure control for the lowest possible energy consumption. After setup no further configuration is needed – the pump automatically adapts to changing system conditions.
Which Grundfos submersible pump is suitable for deep groundwater?
Grundfos SP-series submersible pumps are designed for groundwater abstraction from boreholes of 4', 6', 8', and larger with heads exceeding 600m and flow rates up to 1,000 m³/h. The SP series is available in stainless steel (AISI 304/316) and is supplied with Grundfos MS-series submersible motors. CU301 and CU352 control panels provide automatic pump management and dry-run protection.
How long do Grundfos mechanical seals last?
Grundfos mechanical seals have an average service life of 3-7 years with correct application and clean medium. Wear is accelerated by dry running, high temperatures, abrasive particles in the medium, and use of unsuitable seal types. Verkopershulp.nl supplies overhaul kits per pump model with all required seals for a complete overhaul.
Can I integrate Grundfos pumps into my BMS or SCADA system?
Yes, Grundfos pumps with CUE control or built-in frequency inverter (E-pump) offer Modbus RTU, BACnet, PROFIBUS, and GENIbus communication interfaces. Via the Grundfos GO app, wireless Bluetooth configuration and monitoring are possible. The Grundfos Eazycon data logger collects performance data for cloud analysis and reporting.