4820-00-287-4627 VALVE,SAFETY RELIEF Index 4820-00-287-4629 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-287-4628

Federal Supply Class:
4820

National Item Identification Number:
002874628

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:
4900-98411480064NAVAL SHIP SYSTEMS COMMAND
4900-984114 ASSEMBLY 180064NAVAL SHIP SYSTEMS COMMAND
4900-984114PC2-3-10-11-22-24-26-80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
COPPER ALLOY FLOW CONTROL DEVICE
NICKEL ALLOY SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE BODY
M1L-B-892 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
QQ-N-288,COMPB FED SPEC SINGLE MATERIAL RESPONSE SEAT
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE3250.0 POUNDS PER SQUARE INCH SINGLE 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 ACCOMMODATED0.500 INCHES 1ST END
0.750 INCHES 2ND END
THREAD SERIES DESIGNATORNPT 1ST END
NPT 2ND END
NOMINAL THREAD SIZE0.500 INCHES 1ST END
0.750 INCHES 2ND END
THREAD DIRECTIONRIGHT-HAND 1ST END
RIGHT-HAND 2ND END
RENEWABLE SEAT RING TYPETHREADED
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODTHREADED
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE3000.0 TO 3200.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY RELIEF PRESSURE SETTING AND ELRN
EXTRA LONG REFERENCE NUMBER4900-984114PC2-3-10-11-22-24-26-27-29-30-32-35
THE MANUFACTURERS DATA
MANUFACTURERS CODE80064
DESIGN CONTROL REFERENCE4900-984114PC2-3-10-11-22-24-26-


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