figgy Posted November 3, 2020 Report Share Posted November 3, 2020 Trouble is where you measure the force required, at the spindle or at the hand wheel. Or are you using valve wrenches. When serving my apprenticeship and we changed or fitted them it was my job to wind the valves open and then closed after greasing the spindle thread. Some took an hour to wind if they were big valves. Awful mind numbing hard work. Using a fish scale could work if the force is less than your scale reads. It will give you the differential forces across the valves. Quote Link to comment Share on other sites More sharing options...
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