Enter the G dimension of Stationary Tubesheet to be used for the some floating tubesheet types. If this input is left blank, then the program will compute the G from the specified gasket input.
TEMA standard states that for all the floating tubesheet (except divided), the G shall be the G used for the stationary tubesheet.
The T type floating tubesheet should also be checked with actual gasket G of the floating tubesheet.