Rear face hardware replacement 105-B, D, DR, F, and H
Prior to the use of venturis on the front of the B, D, DR, P, and H Reactors, much of the pressure and velocity heads developed by the 190 process water pumps were used in overcoming built-in frictional losses in the system external to the process tubes. As Reactor Technology was gained, changes were continually taking place. Venturis replaced orifices installed during original construction. Hydraulically efficient front nozzles, front pigtails, front adaptors, and a second generation of front venturis were designed and installed as a part of Project CG-558. Process changes, such as eliminating upstream dummy charges, were also mademore »