These nozzle flanges are approx. 8.5" face to face projections.  Available in 2-3-4-6-8" sizes.  150lb rasied face flange on nozzle side joined by sched. 40 carbon steel pipe to a 1/4" steel plate flange on tank side.  Powder coated in a drinking water safe coating in the color of Tank Tan.  Tank side gasket in either Buna or EPDM included.