The H.E.C. (hose end chamber) couples to the end of the hydraulic hose after uncoupling from the power source.
It prevents the pressure build up from thermal expansion by giving the hydraulic oil a place to go, and it remains there until the implement is needed again. At that point, users can uncouple the hose end chamber and reattach the implement’s hydraulics. The H.E.C. product line ranges in size to fit most equipment from small, single-cylinder attachments to large, multi-cylinder attachments.