End-of-Life Information

Grundfos MS402 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.

Safety risks

Safety risk related to materials used

  • MS402 contains motor liquid with monopropylene glycol.
  • Hermetically sealed stator with embedding material – risk of explosion if exposed to temperature > 120 deg C.
  • Grinding in SS poses risk of dust with Cr and Ni.

Safety risk related to handling the product

  • Electrically burned motors can contain health hazardous substances formed by burning of various insulation materials.
  • Motor and motor liquid can contain substances present in the media it has been in (pay attention in case of radioactive media – biological growth etc.)

Disassembly of the product

  • Submersible motor can be disassembled into main components using standard tools.
  • Shaft can be pressed out of rotor core – tungsten carbide bearing areas present.
  • Stator + rotor core can be recycled by use of shredder technology to separate the different materials, copper, SS, electro steel, aluminium and insulation materials.


NameMaterialSpecial disassembly considerations
1Sand shield + diaphragmRubber 
2Cover plateSS 1.4301 
 Motor liquidMonopropylene glycol + water 
3ShaftEN 1.4057Bearing surfaces sprayed with tungsten carbide.
 RotorLamination – electro steel
Casting material – Al, Silumin or with copper.
Ceramic disc glued to N-side
4+9Thrust bearingCarbon shoes
Mesh - SS 1.4301
Support ring – cast iron (9)
Some contains antimon
6Radial bearingCeramic 
7Bearing bracketCED coated aluminium 
8Height adjustmentSS 1.4301 
5Hermetically sealed statorShell – SS 1.4301
Top – SS casting
Embedding material – PUR
Winding wire – Insulated copper
Stator lamination – electro steel
Radial bearings – ceramic
Some stators with PCB in the top
 Bolts and nutsSS grade 
Additional materials:   
5k. MS402