Breather plug with double valve system

Application: Gear Boxes

Target: Avoid inner depression in the device.

Cause: The inner temperature reduction of the oil reduces the  oil volume.

Issue: Into the gearbox a depression is  created with the risk of ingoing moisture, dust or water through the shaft seals

SOLUTION: A breather plug with double valve system

Which allows:

>  To breath out the overpressure in the heating phase;

>  To breath in the depression in the cooling phase.

Main technical constraints: small dimensions, seal compatibility