End-of-Life Information
Grundfos DME Pumps must be disposed of according to local regulations by using a public or private waste collection service. If this is not possible, contact the nearest Grundfos company or service workshop.
To identify the specific product materials, please check the Type key available in the product nameplate as described in the product´s Installation and operating instructions.

Safety Risk

Safety related to materials used

  • The materials used in DME pumps do not pose any health risk to the person handling them. Please observe the corresponding indications in the Installation and operating instructions for taking the product out of operation.

Safety related to handling the product

  • The required safety measures for handling the chemical being dosed with this pump should be taken. The parts in contact with the fluid should be rinsed and cleaned before disposal in an environmentally sound way.
  • The product should be taken out of operation according to the recommendations described in the Installation and operating instructions.
  • Care should be taken when handling the pump due to its weight.


Disassembly of the Product

Depending on the pump model, the materials of the product components are:

  • Stainless Steel of different grades
  • Thermoplastics of different compositions
  • Elastomers of different compositions
  • Composites
  • Aluminium
  • Electronic scrap

The pump is assembled using Torx T20, T25 and Hexagon screws, and can therefore be disassembled with standard tools.

DesignationName  MaterialSpecial Disassembly Consideration
1Back platePPE/PS 20 % glass fibre 
2SpringDIN 17223 TYPE C 
3HousingPPE/PS 20 % glass fibre 
4Hall sensorElectronic scrap 
5Operation PCBElectronic scrap 
6Power cableRubber 
7Gear unitAluminium/Stainless SteelParts fixed with Loctite glue
8Brushless DC motorElectronic scrap 
9Drain hole  
10ConnectorPP or PVDF or SS 1.4401 
11Union nutPP or PVDF or SS 1.4401 
14O-ringEPDM or FKM or PTFE 
15Venting valve, ballCeramic 
16SpringAlloy C-4, 2.4610 (NiMo16CrTi) 
17SpringAlloy C-4, 2.4610 (NiMo16CrTi) 
18Venting valve, bodyPP or PVDF 
19Venting valve, tapPP or PVDF 
20O-ringEPDM or FKM or PTFE 
21End coverSteel 
23O-ringEPDM or FKM or PTFE 
24Valve seatPP or PVDF or SS 1.4401 
25Valve ballCeramic or Glass or SS 1.4401 
26Valve cagePP or PVDF or SS 1.4401 
27SpringAlloy C-4, 2.4610 (NiMo16CrTi)Only in pumps with spring loaded valves
28O-ringEPDM or FKM or PTFE 
30Dosing head coverSteel 
31Dosing headPP or PVDF or SS 1.4401 or PTFE 
32Safety membraneFKM 
33Power PCBElectronic scrap 
34Crank shaftSteel 
35I/O PCBElectronic scrap 
36Connecting rodSteel 
37Steel plateSteel 
38Steel frameSteel 
39DiaphragmTextile-reinforced EPDM, PTFE-coated 
Additional materials:Screws, connectors, etc.: Various materials less than 5% of weight
4b DME1
4b DME2