National Item Identification Number
00-220-1850
002201850
4820-00-220-1850
4820-00-220-1850
National Stock Number
Item Name
VALVE,SAFETY RELIEF
Federal Supply Class
4820
Description
A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.
Commercial and Government Entity Code (Supplier Data)
16497
DRESSER INC.
DBA DRESSER EQUIPMENT GROUP DIV
HWY 3225 AT LA HWY 167 N
ALEXANDRIA
LA
71309
318-640-6031
38056
ASHCROFT INC
DBA DRESSER INSTRUMENTS DIV DRESSER
250 E MAIN ST
STRATFORD
CT
06614
203-385-0611
Reference Numbers (Part Numbers)
CL55S51-98
R6181AZ
R6181AZ
Required Categories
STYLE DESIGNATOR
FLOW CONTROL DEVICE
VALVE DISCHARGE FLOW RATE
CONNECTION TYP
Required Description
C1 ANGLE
DISK
13000.0 POUNDS PER HOUR
FLANGE 1ST END
FLANGE 2ND END
ROUND W