Matco-Norca’s Swage concentric nipples are reducers for high-pressure piping systems contain a bore matching of the pipe they are fitted to. They are available in Schedule 80 and Schedule 40 sizes: 1/2” to 4” and 2” to 4”, respectively. They are fully traceable back to the production mill (mill test results are available) and conform to MSS SP-95, ASME B1.20.1 and ASME B36.10M (for wall thickness) standards. Swage nipples come in standard and XH concentric configurations. Matco-Norca.