Vibration Severity
Machinery vibration severity evaluation criteria — zone boundaries (A/B/C/D) for bearing housing velocity (mm/s RMS) and shaft displacement (micrometers pk-pk) per ISO 10816-1/3, ISO 20816-1/2/3, ISO 7919-3, API 610/617/611/612, NEMA MG1, VDI 3839, and ISO 14694. Covers ISO 10816-3 Groups 1 and 2 (rigid and flexible mount), ISO 10816-1 Classes I–IV, API centrifugal pump/compressor/steam turbine limits, rotodynamic pump zones, hydraulic machine zones, reciprocating machine limits, fan vibration limits, general alarm/trip multipliers, and summary lookup records.
Attributes
description
machine_group
power_kw_minkW
power_kw_maxkW
mounting
zone_A_max_mm_smm/s
zone_B_max_mm_smm/s
zone_C_max_mm_smm/s
unit
zone_interpretation
notes
Browse data
ALARM_TRIP_GENERAL2 rowsAPI_610_PUMP3 rowsAPI_611_TURBINE1 rowAPI_612_TURBINE1 rowAPI_617_COMPRESSOR2 rowsISO_10816_1_CLASS_I1 rowISO_10816_1_CLASS_II1 rowISO_10816_1_CLASS_III1 rowISO_10816_1_CLASS_IV1 rowISO_10816_3_GRP1_FLEXIBLE3 rowsISO_10816_3_GRP1_RIGID3 rowsISO_10816_3_GRP2_FLEXIBLE3 rowsISO_10816_3_GRP2_RIGID3 rowsISO_10816_3_SUMMARY3 rowsISO_10816_5_HYDRAULIC1 rowISO_10816_6_RECIPROCATING1 rowISO_10816_7_ROTODYNAMIC1 rowISO_14694_FANS1 rowISO_20816_1_GENERAL1 rowISO_20816_2_LANDSTEAM2 rowsISO_7919_3_SHAFT1 rowISO_7919_3_SHAFT_LRG1 rowNEMA_MG1_VIBRATION2 rowsVDI_3839_FANS1 row
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