5365-00-820-7658 RING,EXTERNALLY THREADED Index 8430-00-820-7663 BOOTS,FLYERS'

National Stock Number:
4820-00-820-7659

Federal Supply Class:
4820

National Item Identification Number:
008207659

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:
524A-4D-2091816CIRCOR AEROSPACE, INC.
524D-2091816CIRCOR AEROSPACE, INC.


Techincal Specification:
CONNECTION STYLEFLARED (TUBE) FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICEPOPPET
MATERIALALUMINUM ALLOY 2024 FLOW CONTROL DEVICE
MATERIALALUMINUM ALLOY 2024 BODY
MAXIMUM OPERATING TEMP400.0 FAHRENHEIT SECOND RESPONSE
MAXIMUM OPERATING TEMP-100.0 FAHRENHEIT FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDOIL, CHLORINATED TRANSFORMER SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDOXYGEN, GASEOUS THIRD RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END
NOMINAL THREAD SIZE0.437 INCHES FIRST END
OPENING PRESSURE SETTING20.0 POUNDS PER SQUARE INCH
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
SEAT ANGLE37.0 DEGREES FIRST END
VALVE DISCHARGE FLOW RATE6.0 CUBIC FEET PER MINUTE
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3A FIRST END
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS


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