4820-00-821-8998 VALVE,GATE Index 1730-00-821-9014 SLING,AIRCRAFT MAINTENANCE

National Stock Number:
4820-00-821-9001

Federal Supply Class:
4820

National Item Identification Number:
008219001

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:
166438056ASHCROFT INC


Techincal Specification:
STYLE DESIGNATORSTRAIGHT THRU
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
COPPER ALLOY SEAT
COPPER ALLOY STEM
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
GAS, INERT 2ND RESPONSE
MAXIMUM OPERATING PRESSURE275.0 POUNDS PER SQUARE INCH 1ST RESPONSE
275.0 POUNDS PER SQUARE INCH 2ND RESPONSE
MAXIMUM OPERATING TEMP450.0 DEG FAHRENHEIT 1ST RESPONSE
450.0 DEG FAHRENHEIT 2ND RESPONSE
VALVE DISCHARGE FLOW RATE33.0 CUBIC FEET PER MINUTE
CONNECTION TYPETHREADED INTERNAL PIPE 1ST END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 1ST END
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES 1ST END
THREAD SERIES DESIGNATORNPT 1ST END
NOMINAL THREAD SIZE0.250 INCHES 1ST END
THREAD QUANTITY PER INCH18 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING30.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY VALVE SIZE AND SET PRESSURE
THE MANUFACTURERS DATA
MANUFACTURERS CODE38056
DESIGN CONTROL REFERENCE1664


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