Operating instructions

SHERWOOD LPG PRODUCTS
Overview
TABLE 1 - SHERWOOD VALVE DATE CODE
How Most Valves Are Coded Abbreviations &YBNQMF
Month and year
(used up to 1976)
Month (alphabetic),
Year (single-digit numeric)
A - January
B - February
C - March
D - April
E - May
F - June
G - July
H - August
I - September
J - October
K - November
L- December
D5 could mean:
April 1955
April 1965
April 1975
Quarter and year
(used 1976–1982)
Quarter (alphabetic),
Year (double-digit numeric)
A - 1st quarter
D - 2nd quarter
G - 3rd quarter
J - 4th quarter
G80 means:
3rd quarter 1980
Month and year
(used 1982–1988)
Month (alphabetic),
Year (single-digit numeric)
F84 means:
June 1984
8FFLBOEZFBS
(used 1988–present)
Week (double-digit numeric),
Year (double-digit numeric)
01 - 1st week of calendar year
02 - 2nd week of calendar year
01-89 means:
First week of 1989;
10-03 means:
Tenth week of 2003
Relief Valves:
Month and year
Month (alphabetic or numeric),
Year (double-digit numeric)
3-88 or C-88 both mean:
March 1988
Model 3349 OPD Valves
Year and day
Year (alphabetic),
Day (numeric)
C212 means:
212th day of 1999
or July 31, 1999
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