The rod and clevis components were made of various alloys (800H, F91, 316H, SA-387 Gr. 22) and ranged in sizes from 2″ to 4″ diameter. Taking into account the surrounding environment’s conditions, engineers designed the rods and clevises so that they can endure temperatures escalating to 1430º F. For the duration of a pull test conducted, the clevises and rods sustained loads up to 152,000 lbs. and there were no discrepancies.
Sweco Fab, Inc. manufactured 4″ pig launchers and receivers for a water reclamation plant in Savage, Maryland.
These launchers and receivers are to aid in the utilization of an oxidation ditch activated sludge process designed for nitrification / de-nitrification and phosphorous removal. The design consists of components such as T-bolt closures, side outlet tees and 4″, 150-psi flanges with protectors. After being built to ASME, Sect. VIII, Div. 1, the launchers and receivers were shop prime painted to prevent against corrosion.