This standard specifies the technical requirements for the design and construction of turbo- and related types of compressors used in the process industry. It also details the documentation requirements.
2 Field of Application
This standard applies to radial and axial flow turbo-compressors. It covers the minimum requirements for such compressors handling air or gas, and which have a specific compression work of more than 25000 J/kg. It is recommended that this standard be used for other turbo-compressors if this standard are required for the particular application.
This standard also covers certain requirements for compressor drivers, drive equipment, lubrication and sealing liquid systems, controls, instrumentation and auxiliary equipment.
The compressors to which this standard applies are not normally used for critical process applications in refineries.
3 ●References
ISO 262 ISO General Purpose Metric Screw Threads - Selected Sizes for Screws, Bolts and Nuts
ISO 898-1 Mechanical Properties of Fasteners - Part I: Bolts, Screws and Studs
ISO 1000 SI Units and Recommendations for the Use of Their Multiples and of Certain Other Units
ISO 1219 Fluid Power Systems and Components - Graphic Symbols
ISO 3511 Process Measurement Control Functions and Instrumentation - Symbolic Representation Part 1: Basic Requirements; Part 2: Extension of Basic Requirements; Part 3: Detailed Symbols for Instrument Interconnection Diagrams
ISO 3989-1 Acoustics - Measurement of Airborne Noise Emitted by Compressor Units Including Prime Movers - Part 1: Engineering Method for Determination of Sound Power Levels
ISO 5389 Turbocompressors - Performance Test Code
IEC 79 Electrical Apparatus for Explosive Gas Atmospheres
IEC 85 Thermal Evaluation and Classification of Electrical Insulation
VDI 2056 Verein Deutscher lngenieure: BeurteilungsmarJstlbefiir mechanische Schwingungen von Maschinen, VDI Richtlinie 2056, VDI GmbH Dusseldorf (D) 1964
4 ●Unit System
SI units (i.e. international system of units) are used throughout this standard (see ISO 1000).
However, in addition to SI units, this standard also uses some non-S1 units accepted by ISO 1000. These units are as follows:
For pressure: bar (1 bar=105 Pa)
For volume: Litre (1 Litre=10-3 m3)
For time: min(1 min=60 s)
For time: h (1 h=3.6×103s)
For rotational speed: r/min (1 r/min=2π/60 rad/s)
5 Definitions
GB/T 16941-1997 The following standards are cited: