Long Weld Neck (LWN) flanges (forgings) are available in COMPRESS whenever a Type 1, 2, 3 or 4 nozzle has been selected. To add a LWN flange, go to the nozzle dialog and select a type 1,2,3 or 4 nozzle. Next, click the "Add (Edit) ASME B16.5/B16.47 Flange" button and specify "Long weld neck" as the flange type. Note that this setting forces COMPRESS to use the pecified ASME B16.5/B16.47 flange material for the nozzle wall as well. This means that COMPRESS will use the specified B16.5/B16.47 flange material for subsequent UG-37and UG-45 nozzle calculations.

Nozzle Types 10 and 11 provide access to HB, F and other heavy wall self-reinforcing nozzle forgings. Nozzle Types 10 and 11 consider the special rules of Figure UG-40 sketches (e-1) and (e-2) when determining dimensions "t_e" and "t_n".