The Clamp utility limits values to a user-determined range. Any value outside of the range will be ignored.
The Clamp utility can be found under the Utility section of the Effects Browser.
If the input sends a range of numbers between 1 to 100 and the clamp utility's min and max values are set to 30 and 60, only the range of numbers between 30 and 60 will be pulled from the clamp.
Anything before or after will be blocked and the clamp will output its min or max values till the specified range condition is met again.