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ASME B19.3 1991 Edition, July 31, 1991
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Includes all amendments and changes through Addendum B , 1995
Additional Comments: W/D NO S/S
Page Count:51
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(a) The specific recommendations in this Standard cover the requirements for safety devices and protective facilities to prevent compressor accidents as a result of excessive pressure, destructive mechanical failures, internal fires or explosions, and leakage of toxic or flammable fluids. General safety practices and hazards unique to compressors are also covered. This Standard applies to the compressor and its auxiliaries, including drivers, intercoolers, surge chambers, disengaging drums or scrubbers, interconnecting piping and lubrication, seal oil, and jacket water systems. The requirements of this Standard apply to all types of compressors (centrifugal, axial, rotary, and reciprocating) which are an integral part of facilities for processing petroleum, petrochemicals, or chemicals, including air separation plants. They do not apply to gas transmission compressors, isolated petroleum production field compressors, or plant air compressors in manufacturing plants other than the process industries mentioned above

(b) Although the provisions of this Standard will apply to the majority of typical compressors used in the process industries, exceptions to these recommendations with regard to certain facilities of unusual design or complexity may be necessary. In such cases, it is intended that designers capable of applying a complete and rigorous analysis to system requirements shall have latitude in the development of safety features. Provisions in this Standard are not intended to apply to (1) and (2) below:

(1) basic mechanical design of compressor components. This Standard is based on the requirement that the compressor components be designed by qualified engineers in accordance with the recognized standards and specifications. Further, it is essential that these engineers have a thorough knowledge of the basic concepts of the design of such equipment components as cylinders, pistons, crank-shafts, flywheels, bearings, pressure vessels, and piping.

(2) design and operation of connected process facilities.

(c) The principles promoting safe operation of compressors used for process industries are not restricted to new compressor systems. It is recommended that all compressor systems be reviewed to consider possible changes due to revision of this Standard.