4820-01-262-4175 VALVE,SAFETY RELIEF Index 4820-01-262-4177 VALVE,PLUG

National Stock Number:
4820-01-262-4176

Federal Supply Class:
4820

National Item Identification Number:
012624176

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:
E9920L51M01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
E9920L51M15187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
E9920L51MCP03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+75.0 TO 110.0 POUNDS PER SQUARE INCH
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLESOCKET WITH BRAZING RING ALL ENDS
CRITICALITY CODE JUSTIFICATIONZZZY
FLOW CONTROL DEVICEDISK
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIALCOPPER ALLOY BODY
MATERIALNICKEL ALLOY SEAT
MATERIALNICKEL ALLOY STEM
MAXIMUM OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES ALL ENDS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
STYLE DESIGNATORSTRAIGHT THRU
VALVE OPERATION METHODAUTOMATIC


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