ISO 10816-8:2014 establishes procedures and guidelines for the measurement and classification of mechanical vibration of reciprocating compressor systems. The vibration values are defined primarily to classify the vibration of the compressor system and to avoid fatigue problems with parts in the reciprocating compressor system, i.e. foundation, compressor, dampers, piping, and auxiliary equipment mounted on the compressor system.

ISO 10816-8:2014 applies to reciprocating compressors mounted on rigid foundations with typical rotational speed ratings in the range 120 r/min up to and including 1 800 r/min. The general evaluation criteria which are presented relate to operational measurements. The criteria are also used to ensure that machine vibration does not adversely affect the equipment directly mounted on the machine, e.g. pulsation dampers and the pipe system.

NOTE: The general guidelines presented in ISO 10816-8:2014 can also be applied to reciprocating compressors outside the specified speed range but different evaluation criteria might be appropriate in this case.

The machinery driving the reciprocating compressor, however, is evaluated in accordance with the appropriate part of ISO 10816 or other relevant standards and classification for the intended duty. Drivers are not included in ISO 10816-8:2014.

It is recognized that the evaluation criteria might only have limited application when considering the effects of internal machine components, e.g. problems associated with valves, pistons, and piston rings might be unlikely to be detected in the measurements. Identification of such problems can require investigative diagnostic techniques which are outside the scope of ISO 10816-8:2014.

Examples of reciprocating compressor systems covered by ISO 10816-8:2014 are

? horizontal, vertical, V-, W-, and L-type compressor systems,

? constant and variable speed compressors,

? compressors driven by electric motors, gas, and diesel engines, steam turbines, with or without a gearbox, flexible or rigid coupling, and

? dry running and lubricated reciprocating compressors.

ISO 10816-8:2014 does not apply to hyper compressors.

The guidelines are not intended for condition monitoring purposes. Noise is also outside the scope of ISO 10816-8:2014.