What is meant by the terminology, Reducing (or Oversize) and Non-Reducing (or Line-Size)?
Reducing and Non-Reducing is old terminology, in this case, used for types of jacketed piping insert flanges. You do not even really need to use them if you know the flange size x core size x jacket size. However, for history’s sake, and for those who are familiar with the terms; they can be defined as follows: Reducing and Non-Reducing refer to the nominal flange size relating to the core pipe size. For example, is you need an insert flange for a 3″ flange x 2″ core pipe x 3″ jacket pipe, the 3″ flange reduces to the 2″ core, therefore, this insert flange is Reducing. However, if you need an insert flange for a 2″ flange x 2″ core x 3″ jacket, the 2″ flange does not reduce to the 2″ core since it is the same size, thus, it would be considered Non-Reducing. You can see from this example how, if you know the nominal flange size x core pipe size x jacket pipe size, there is no need to refer to the insert flange as reducing or non-reducing. We also have specific product series that help t
