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:
STYLE DESIGNATORSTRAIGHT THRU
VALVE OPERATION METHODAUTOMATIC
MATERIALALUMINUM ALLOY 2024 BODY
ALUMINUM ALLOY 2024 FLOW CONTROL DEVICE
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
OIL, CHLORINATED TRANSFORMER 2ND RESPONSE
OXYGEN, GASEOUS 3RD RESPONSE
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP-100.0 DEG FAHRENHEIT 1ST RESPONSE
400.0 DEG FAHRENHEIT 2ND RESPONSE
VALVE DISCHARGE FLOW RATE6.0 CUBIC FEET PER MINUTE
CONNECTION TYPETHREADED EXTERNAL TUBE 1ST END
CONNECTION STYLEFLARED (TUBE) 1ST END
SEAT ANGLE37.0 DEGREES 1ST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES 1ST END
THREAD SERIES DESIGNATORUNJF ALL ENDS
NOMINAL THREAD SIZE0.437 INCHES 1ST END
THREAD CLASS3A 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING20.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
THE MANUFACTURERS DATA
MANUFACTURERS CODE91816
DESIGN CONTROL REFERENCE524A-4D-20


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