Abstract: This paper introduces the design of steam jacket pipe in sulfur recovery unit. Combined with the experiences in pipeline construction, unit operation and pipe fitting and valve procurement, high-quality pipe fittings are selected according to the features of related components of jacket pipe and the good heat tracing effect of jacket pipe on the premise of strictly following industrial codes. By comparing the advantages and disadvantages of different design ideas, an optimized design scheme is put forward for the flange, cross, jump-over and branch of jacket pipe

Key words: steam jacket pipe, sulfur recovery, jacket heat tracing