A COUNTER BALANCE VALVE FOR LOAD INDEPENDENT FLOW/SPEED CONTROL IN LOWERING TO AVOID SLOW AND FAST DROPPING OF LIGHT AND HEAVY IMPLEMENTS

摘要

This invention relates to a counter balance valve for load independent flow/speed control in lowering to avoid slow and fast dropping of light and heavy implements comprising of an enclosure accommodating a spool at one end and a spring at other end, which is located between a wall and a stopper.