Configuration Alternatives
In many cases special fittings for various conditions are required. Some of the more common of these are shown here in columns headed “Required.” Under the columns headed “Alternate” are shown combinations of standard fittings which in some situations will provide the desired connection. For economy and/or shipment from stock it is often advantageous to use the combination of standard fittings.
Note: In lieu of tees, blow-off branches and wyes (and particularly those with reduced-size branches), the designer should consider for optimum design, layout and installation the use of fabricated outlet pipe, tangential outlet pipe, and lateral outlets as explained in Fabricated Items.
