4820-00-287-3211 VALVE,SAFETY RELIEF Index 4820-00-287-3214 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-287-3212

Federal Supply Class:
4820

National Item Identification Number:
002873212

Description:
VALVE,SAFETY RELIEF

Detail:
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.


Manufacturer Information:
2601-3-414959CRANE CO DIV VALVE DIV
A313977953711NAVAL SEA SYSTEMS COMMAND
CND1720A7PZX0FAIRBANKS MORSE, LLC
A313977980064NAVAL SHIP SYSTEMS COMMAND
CND1720A82796COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE
ND1720A82796COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
COPPER ALLOY FLOW CONTROL DEVICE
COPPER ALLOY SEAT
STEEL STEM
MATERIAL DOCUMENT AND CLASSIFICATION11-C-390 FED SPEC SINGLE MATERIAL RESPONSE BODY
QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE SEAT
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDSTEAM 1ST RESPONSE
FUEL/OIL, HYDROCARBON 2ND RESPONSE
WATER, FRESH 3RD RESPONSE
MAXIMUM OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH 1ST RESPONSE
300.0 POUNDS PER SQUARE INCH 2ND RESPONSE
300.0 POUNDS PER SQUARE INCH 3RD RESPONSE
CONNECTION TYPETHREADED INTERNAL PIPE 1ST END
THREADED EXTERNAL PIPE 2ND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 1ST END
PLAIN (PIPE) 2ND END
NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES 1ST END
0.750 INCHES 2ND END
THREAD SERIES DESIGNATORNPT 1ST END
NPT 2ND END
NOMINAL THREAD SIZE0.750 INCHES 1ST END
0.750 INCHES 2ND END
THREAD QUANTITY PER INCH14 1ST END
14 2ND END
THREAD DIRECTIONRIGHT-HAND 1ST END
RIGHT-HAND 2ND END
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODTHREADED
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE11.0 TO 15.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDVALVE STEM LOCK SHIELD AND
PRESSURE TIGHT OUTLET SIDE


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