[nipper]

Thats interesting. I am currently working on a deluge system run in Cu-Ni . The spec branch table specifies equal tees only. Any reducing branches require a saddle or weldolet. In my opinion the ammount of time required in fabrication to cut out a coupon for a saddle and weld it would mean that a reducing tee would be a more logical choice. As is many times the case, the spec comes from the client and there is little we can do to change this.