Hydraulic Fuses: Soft Stop

Elevator/lift fuse applications may require a maximum "G" loading for stopping.  Other requirements include safety pressure rating (7-8 times normal operating pressure) maximum speed and performance requirements.  To meet these requirements we have incorporated a variable orifice in our velocity fuse. The variable orifice feature limits the shock load to less than 0.3 G's and the closing time to less than 0.2 seconds.