NMC led a project that developed a prototype flame brazing system to address problems with manual flame brazing for CVN 78 Class aircraft carrier and Virginia Class submarine (VCS) construction. The system will save significant labor and production costs.
This video shows a close up of the fitting being brazed in the vertical orientation. The technology reduces the time to braze, provides a uniform bond around the entire joint, and eliminates paint damage to the surrounding fitting area. The fittings are 1" diameter bronze couplings brazed to copper pipe