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 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.
|Designation||Name||Material||Special disassembly considerations|
|1||Sand shield + diaphragm||Rubber|
|2||Cover plate||SS 1.4301|
|Motor liquid||Monopropylene glycol + water|
|3||Shaft||EN 1.4057||Bearing surfaces sprayed with tungsten carbide.|
|Rotor||Lamination – electro steel|
Casting material – Al, Silumin or with copper.
Ceramic disc glued to N-side
|4+9||Thrust bearing||Carbon shoes|
Mesh - SS 1.4301
Support ring – cast iron (9)
|Some contains antimon|
|7||Bearing bracket||CED coated aluminium|
|8||Height adjustment||SS 1.4301|
|5||Hermetically sealed stator||Shell – 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 nuts||SS grade|