|Flat packing ring||
NBR synthetic rubber.
|Maximum continuous working temperature||
|Permanent magnetic element||
Special alloy with a high attractive power, to keep metal particles in oil.
Matte anodised aluminium marked "MAGNETIC" and graphic symbol.
An adequate tightening torque (see table below) is recommended when screwing the plug, so as to guarantee optimal tightness without any deformation of the packing ring. Suggested tightening torque is the result of laboratory tests carried out at ambient temperature (23°C) with plug, packing ring and reservoir walls perfectly cleaned.