This table displays calculated nozzle and equipment loads. Table content depends on operating modes, submode selection, and occasional load combinations. See Restraint Loads table for related information and How to Reduce Nozzle Loads in START-PROF for optimization techniques.
Contents:
Coordinate system definition:
P - Nozzle axial direction
VC - Perpendicular to nozzle axis and vessel axis
VL - Perpendicular to nozzle axis, parallel to vessel axis
MT - Torsion around nozzle axis
ML - Moment in nozzle-vessel plane
MC - Moment out of nozzle-vessel plane
With "Manual" allowable loads option, nozzle loads display with corresponding allowable values on the second row
With "Stress check by WRC 107/537/297" option, the "Sum" cell shows maximum stress-to-allowable ratio. Hover over load rows to view detailed WRC 107/537/297 stress calculation reports
Axes: FR=FX, FC=FZ, FL=FY, MT=MX, ML=MZ, MC=MY
For API 650 option, FR, ML, MC loads display with corresponding allowable values or ranges
For STO SA 93-002-2009 option, FR, ML, MC loads display with corresponding allowable values
Axes: Frad=FY, Fvert=FZ, Fshaft=FX, Mrad=MY, Mvert=MZ, Mshaft=MX
Each nozzle displays calculated loads (first row) and allowable loads from Table 5 multiplied by "Manufacturer Allowable Multiplier" (default: 2.0). "FR" cell shows FRSA/FRDA (first row) and FRST4/FRDT4 (second row). "MR" cell shows MRSA/MRDA (first row) and MRST4/MRDT4 (second row). "Sum" field displays F.1 and F.2 equation compliance ratios
Summary loads row displays FXCA, FYCA, FZCA, FRCA, MXCA, MYCA, MZCA, MRCA values. "FR" field shows F.3 equation ratio, "MR" field shows F.5 equation ratio, "Mrad" field shows F.4 equation ratio
Axes: Frad=FY, Fvert=FZ, Fshaft=FX, Mrad=MY, Mvert=MZ, Mshaft=MX
Each nozzle displays calculated loads (first row) and allowable loads multiplied by "Manufacturer Allowable Multiplier" (default: 1.4). "Sum" field shows compliance ratio for the governing equation
Same methodology as ISO 9905
Same methodology as ISO 9905
Axes: Frad=FY, Fvert=FZ, Fshaft=FX, Mrad=MY, Mvert=MZ, Mshaft=MX
API 610: Each nozzle displays calculated loads (first row) and side nozzle allowable loads multiplied by "Table Nozzle Loading Factor" (default: 2.0). "Sum" field shows F.6 equation compliance ratio
ISO 9905/5199/Other: Each nozzle displays calculated loads (first row) and vertical pump allowable loads multiplied by "Manufacturer Allowable Multiplier" (default: 1.4), adjusted for elastic modulus ratio and pump type. "Sum" field shows governing equation compliance ratio
Axes: Frad=FZ, Fvert=FY, Fshaft=FX, Mrad=MZ, Mvert=MY, Mshaft=MX
Flong axis aligns with shaft axis. Fcir axis is vertical
Each nozzle displays calculated loads. "Sum" field shows F.1a/F.1b equation compliance ratio multiplied by "Factor for Allowable Loads"
"DN" field displays equivalent diameter
Summary loads row displays total compressor loads (first row) and allowable loads multiplied by "Factor for Allowable Loads" (second row)
"Sum" field shows F.5a/F.5b equation compliance ratio multiplied by "Factor for Allowable Loads"
"DN" field displays equivalent diameter
Same methodology as API 617 with allowable loads reduced by factor 1.85
Axes: Frad=FX, Fvert=FY, Fshaft=FZ, Mrad=MX, Mvert=MY, Mshaft=MZ
First row displays load values, second row displays allowable values
Axes: Frad=FX, Fvert=FY, Fshaft=FZ, Mrad=MX, Mvert=MY, Mshaft=MZ
Each nozzle displays calculated loads (first row) and allowable loads from Table 4 multiplied by "Factor for Nozzle Allowables" (default: 1.0)
Each floating header displays summary loads from connected nozzles (first row) and allowable loads per 7.1.10.2 multiplied by "Factor for Floating Header Allowables" (default: 1.0)
Whole heat exchanger displays total loads from all nozzles (first row) and allowable loads per 7.1.10.2 multiplied by "Factor for whole Heat Exchanger Allowables" (default: 3.0 per 7.1.10.3)
After analysis: Output > Restraint and Equipment Load