4820-01-180-8475 VALVE,ANGLE Index 4820-01-180-8477 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-180-8476

Federal Supply Class:
4820

National Item Identification Number:
011808476

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:
339094-122915NORTHROP GRUMMAN CORP ELECTRONIC SYSTEMS DEFENSIVE SYSTEM DIV
524A-2M-1091816CIRCOR 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-70.0 DEG FAHRENHEIT 1ST RESPONSE
450.0 DEG FAHRENHEIT 2ND RESPONSE
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING10.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE6.0 TO 13.9 POUNDS PER SQUARE INCH
SPECIAL FEATURESPOP-OFF TYPE


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