Basic Measuring Guidelines
Rows
Horizontal rows of tubes in the fin pack
FPI - Fins Per Inch
FH - Fin Height
FL - Fin Length
SP1, SP2 - Sideplate Flanges
Called sideplates because coil face lays flat on the table during tube expansion
EP1, EP2 - Endplate Flanges
Also called tube sheets
CH - Casing Height
CH = SP1 + FH + SP2
CL - Casing Length
CL = EP1 + FL + EP2
CD = Casing Depth
CD must be greater than (# Rows) * (Centerline Distance Between Rows)
Horizontal rows of tubes in the fin pack
FPI - Fins Per Inch
FH - Fin Height
FL - Fin Length
SP1, SP2 - Sideplate Flanges
Called sideplates because coil face lays flat on the table during tube expansion
EP1, EP2 - Endplate Flanges
Also called tube sheets
CH - Casing Height
CH = SP1 + FH + SP2
CL - Casing Length
CL = EP1 + FL + EP2
CD = Casing Depth
CD must be greater than (# Rows) * (Centerline Distance Between Rows)
Max
Dimension from the edge of the fin pack to the outside of the return bend
L - Connection Length
"C" Dimension
Dimension from the edge of the fin pack to the outside of the header
OAL - Overall length
Dimension from the edge of the return bends to the outside of the header
OAL = MAX + FL + C
S, R, E, F - Connection Locations
Measured from the sides of the casing to the centerline of the connection
Dimension from the edge of the fin pack to the outside of the return bend
L - Connection Length
"C" Dimension
Dimension from the edge of the fin pack to the outside of the header
OAL - Overall length
Dimension from the edge of the return bends to the outside of the header
OAL = MAX + FL + C
S, R, E, F - Connection Locations
Measured from the sides of the casing to the centerline of the connection
