4820-00-706-4588 VALVE,SAFETY RELIEF Index 4820-00-706-4592 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-706-4591

Federal Supply Class:
4820

National Item Identification Number:
007064591

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:
C1058A2D581755LOCKHEED MARTIN CORPORATION
D539A2M591816CIRCOR AEROSPACE, INC.
D559A-2M-591816CIRCOR AEROSPACE, INC.


Techincal Specification:
CONNECTION STYLEPLAIN (PIPE) 1ST END
CONNECTION TYPETHREADED EXTERNAL PIPE 1ST END
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICEPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 3031/SAE 30303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 BODY
MATERIALSTEEL COMP 303 FLOW CONTROL DEVICE
MATERIALSTEEL COMP 303 SEAT
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAMMONIA, LIQUID 1ST RESPONSE
MEDIA FOR WHICH DESIGNEDBUTANE 2ND RESPONSE
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON 3RD RESPONSE
MEDIA FOR WHICH DESIGNEDGAS, INERT 4TH RESPONSE
MEDIA FOR WHICH DESIGNEDHYDROGEN 5TH RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES 1ST END
NOMINAL THREAD SIZE0.250 INCHES 1ST END
OPENING PRESSURE SETTING5.0 POUNDS PER SQUARE INCH
SPECIAL FEATURESREFRIGERANT 12 SIXTH MEDIA
STYLE DESIGNATORSTRAIGHT THRU W/BAFFLE
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD QUANTITY PER INCH18 1ST END
THREAD SERIES DESIGNATORNPT 1ST END
VALVE OPERATION METHODAUTOMATIC


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