Description

Hydraulic Oil Breathers: These devices are designed to allow air to enter and exit a hydraulic fluid reservoir as fluid levels change due to pump operation and temperature variations.   Crucially, they also filter the incoming air, preventing contaminants like dust, dirt, and moisture from entering the hydraulic system.   This filtration is essential for maintaining the purity of the hydraulic fluid, which directly impacts the performance and longevity of the hydraulic system. FSB appears to be a model designation, frequently used by the company Hydroline, for their range of filter/breather units.