Kistler-Morse KM L-Cell Bolt-On - Manual (Page 44)

Chapter 5. L-Cell Installation on Skirt-Supported Vessels
5-7
Mark Locations (Bolted, Skirt-Supported Vessels)
1. Beginning on the outside of the skirt at the door panel (panel 1), walk
clockwise to panel 2. Mark the preliminary L-Cell location:
• Locate the L-Cell on the panel horizontal centerline.
• Vertically, locate the L-Cell at the panel mid-height (typically 3’ to 4’
[0.9 to 1.2m] above the foundation).
• Minor obstructions — Move the L-Cell so it is not within 2’ (0.6m) of
a minor obstruction. Vertically, center the L-Cell within the effective
panel height.
• Major obstructions — Move the L-Cell to the centerline of the next
panel to avoid major obstructions.
2. Continuing to move clockwise around the outside of the skirt, repeat
Step 1, marking preliminary mounting locations on panels 4, 6, etc.
Figure 5-9. Mounting L-Cells in Alternate Locations because of Minor Obstructions
Maintain 2’ (0.6m) Minimum Distance between
L-Cells and Minor Obstruction (seam weld)
Modified Location to
Avoid Placement
of L-Cells near
Minor Obstruction
‘Ideal’ Locations, based
on Symmetrical Spacing
Seam
Weld
Major Obstruction Example
on Bolted Vessel
Figure 5-8. Mounting L-Cells in Alternate Locations because of Major Obstructions
Do not install L-Cells within 4’ (1.2m) of major
obstruction. Install as shown on Modified layout below.
Major Obstruction
at Ideal Location
for an L-Cell Set
Mount L-Cells
4’ (1.2m)
from Major
Obstruction
Welded Vessel
Do not install L-Cells on same panel as major
obstruction (panel 8). Install on center of adjacent
panel, as shown on Modified layout below.
Panel 8
Panel 9
Bolted Vessel
Major Obstruction Example
on Welded Vessel
18’ (5.5m) Diameter
Modified Layout because
of Major Obstruction
1
2
3
4
5
6 7 8
9
11
Mount L-Cells on Panel 9
instead of Panel 8
12
10
1
2
3
4
5
6 7 8
9
10
11
12
18’ (5.5m) Diameter
Typical Layout
18’ (5.5m) Diameter
Typical Layout
18’ (5.5m) Diameter
Modified Layout because
of Major Obstruction
Mount L-Cells 4’ (1.2m)
from Major Obstruction
Note
The procedure for marking
mounting locations is based on
the nominal locations shown.
Refer to the Application Data
Form for the approximate
mounting locations selected by
KM.