4820-01-236-8834 VALVE,CHECK Index 4820-01-236-8836 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-236-8835

Federal Supply Class:
4820

National Item Identification Number:
012368835

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
RV05-30-80.091816CIRCOR AEROSPACE, INC.
ST7M304D2N080076301THE BOEING COMPANY


Techincal Specification:
STYLE DESIGNATORSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF SEPARABLE SECTIONS.
VALVE OPERATION METHODAUTOMATIC
MATERIALALUMINUM BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE BODY
SURFACE TREATMENTANODIZE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 TYPE I MIL SPEC SINGLE TREATMENT 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 SIZE0.250 INCHES ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING80.0 POUNDS PER SQUARE INCH
MINIMUM OPERATING TEMP-40.0 DEG FAHRENHEIT
SPECIAL FEATURESPACKING,BUNA-N PER MIL-P-25732


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