A: Cycle times are as follows: 1.5″ thru 3″ ID = 1.5 to 2 sec to open, 1.5 to 2 sec to close 4″ thru 8″ ID = 2.5 to 3 sec to open, 2.5 to 3 sec to close 10″ thru 12″ = 4.5 to 5 sec to open, 4.5 to 5 sec to close 14″ thru 21″ = 7 to 10 sec to open, 7 to 10 sec to close.