7202
BOILER DETAILS - LOCOMOTIVE No 7202
Boiler No C 6068 Type: Standard No 4 (DG)
Built: Messrs Ruston & Hornsby Lincoln 1926
Drg.No: 58712 Authority: K 397
Max. designed working pressure: 200 Ibs/sq.in.
Boiler, Barrel length 11? 0"
Outside diameter 4' 10 ¾" and 5' 6"
Pitch 8' 2"
Firebox, Outside 7' 0" by 5' 9" and 4' 0"
Inside 6' 2½" by 4' 8 7/8" and 3' 2 5/8"
Height 6' 6 3/8" and 5' 0 3/8"
Tubes. No Diameter Length
Fire 235 1 5/8" 11' 4 7/16"
Flue 14 5 1/8" 11' 4 7/16"
Elements 84 1" 11' 5 3/8"
Heating surface: |
Tubes |
1349.64 sq.ft. |
|
Firebox |
128.72 sq.ft. |
|
Superheater |
191.79 sq.ft. |
|
Total |
1670.15 sq.ft. |
Grate area: 20.56 sq.ft.
BOILER CONSTRUCTION
BARREL (Steel) |
CASING (Steel) |
FIREBOX (Copper) |
|||
Front plate |
21/32" thick |
Frontplate |
11/16" thick |
Tubeplate |
5/8" thick |
Backplate |
3/4" thick |
Backplate |
9/16" thick |
Backplate |
5/8" thick |
Tubeplate |
11/16" thick |
Crown |
9/16" thick |
Crown |
5/8" thick |
|
|
R.H. Side Wrapper |
9/16" thick |
R.H. Side Wrapper |
5/8" thick |
|
|
L.H. Side Wrapper |
9'16" thick |
L.H. Side Wrapper |
5/8" thick |
|
|
Foundation Ring |
4" x 3 1/2" |
|
|
LOCOMOTIVE |
FITTED |
REMOVED |
7309 |
June 1925 |
September 1929 |
5339 |
December 1929 |
March 1932 |
5306 |
September 1932 |
February 1937 |
4321 |
February 1937 |
September 1937 |
9304 |
April 1938 |
November 1945 |
9307 |
March 1946 |
November 1951 |
7226 |
March 1952 |
October 1957 |
7202 |
January 1958 |
May 1988 (For overhaul) |
Total mileage at 28/12/63 951,096
LAST REPAIRS BEFORE PRESERVATION
Caerphilly - June 1962 - Category "L" (In frames)
No details available
Caerphilly -January 1958 - Category "E" (Off frames)
Small tubes and Superheater flues renewed
Firebox -New copper tubeplate
-New copper backplate
-½ New copper wrappers L.H. and R.H. sides
Casing -3/4 New steel backplate
-½ New stool wrappers L.H. and R.H. sides
Stays -474 New copper and 695 new steel
Hydraulic test (260 lbs/sq.in.) 7/1/58
Steam test (200 Ibs/sq.in.) 7/1/58