4820-01-256-8744 VALVE,SAFETY RELIEF Index 4820-01-256-8746 VALVE,GLOBE

National Stock Number:
4820-01-256-8745

Federal Supply Class:
4820

National Item Identification Number:
012568745

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:
D841-405296101GAS EQUIPMENT ENGINEERING CORPORATION, THE DBA GEECO
D841-4052CP03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
D841-495296101GAS EQUIPMENT ENGINEERING CORPORATION, THE DBA GEECO


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONZZZY
DISK LOADING METHODSPRING
FURNISHED ITEMS AND QUANTITY2 TAILPIECE
FLOW CONTROL DEVICEDISK
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 303 ASSN STD SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 303 ASSN STD SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B16 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY 922 BODY
MATERIALCOPPER ALLOY FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING SEAT
MATERIALSTEEL CORROSION RESISTING STEM
MAXIMUM OPERATING TEMP165.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDOXYGEN, LIQUID SINGLE RESPONSE
OPERATING PRESSURE460.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
STYLE DESIGNATORANGLE


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