| This type of piping generally is recognized as
providing the most uniform application of heat to the process, as well as maintaining the
most uniform processing temperatures. The jacket pipe is welded to the back of the
flanges, which allows the heating fluid to heat the flanges as well as the process piping.
This construction also requires that the flanges be "oversize" to allow
sufficient room to tighten nuts on the backs of the flanges during pipe installation. To
accommodate this space requirement, the flange size normally matches the size of the
jacket pipe. Consequently, all equipment (valves, pumps, meters,) also must utilize
oversize flanges or special flange adapters. Standard Jacketed Pipe is used most
frequently on processes that have narrow temperature envelopes, require very uniform
temperature maintenance, or must have maximum heat input for melt-out or heat exchanger
service. Batch-type processing is a typical application. Other applications include
high-temperature, heat sensitive polymers, resins, and other hydrocarbons. These processes
generally are in the low-to-medium pressure ranges. |
|
 Standard Jacketed Pipe
|
