Hydac BF Series Filler Breather with Duo Valve (RV)



Challenges Solutions Resources






Operating on inclines. Mobile equipment can often operate in rough, sloped environments. When on particularly steep grades, hydraulic fluid can slosh out of the reservoir tank through the standard breather, resulting in loss of oil and contaminating the environment.





HYDAC’s BF Series Filler Breather with Duo Valve (RV) and custom fill neck allows air to escape the tank while keeping oil internal to the reservoir.  Available breather series with the Duo Valve functionality include ELF, BF, and BDE.





Utilizing the BF Series Breather with Duo Valve is more effective than conventional breathers by eliminating the problem of oil sloshing out of the reservoir tank (environmental and cleanliness concerns) and conserving the costly hydraulic fluid.

The breather utilizes two springs operating on poppets. These specially designed check valves allow the tank to breathe in both directions without allowing oil to escape.