4820-01-237-6168 VALVE,SAFETY RELIEF Index 4820-01-237-6170 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-237-6169

Federal Supply Class:
4820

National Item Identification Number:
012376169

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:
7M30476301THE BOEING COMPANY
7M304D6N080076301THE BOEING COMPANY
RV05-77-80.091816CIRCOR AEROSPACE, INC.


Techincal Specification:
STYLE DESIGNATORSTRAIGHT THRU
VALVE OPERATION METHODAUTOMATIC
MATERIALALUMINUM ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE BODY
SURFACE TREATMENTANODIZE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDGAS, INERT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP250.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING80.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE0.5 TO 140.0 POUNDS PER SQUARE INCH
MINIMUM OPERATING TEMP-40.0 DEG FAHRENHEIT


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