Load-holding valve DLHV solves infamous problem

Achieving safe, vibration-free lowering manoeuvres in a crane function in connection with load-sensing systems and conventional load holding valves is a well-known problem. Systems must often be set up such that an unnecessarily high operating pressure is built up on the piston rod side when lowering.

Low pressure on the piston rod side

Olsbergs load holding valves mean lowering manoeuvres are stable with very low operating pressures on the piston rod side.

Protection against broken hoses

The load holding valve is closed and tight in neutral position and gives protection against a broken hose. It has shock valves with anti-cavitation function for both piston and piston rod side of the cylinder.