4820-01-211-0938 VALVE,SAFETY RELIEF Index 4820-01-211-0940 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-211-0939

Federal Supply Class:
4820

National Item Identification Number:
012110939

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:
2015401343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20154G11M01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20154G11M15187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+500.0 TO 3450.0 POUNDS PER SQUARE INCH
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEEXPOSED SPRING
CONNECTION STYLESOCKET WITH BRAZING RING (TUBE) ALL ENDS
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
DISK LOADING METHODSPRING
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 FLOW CONTROL DEVICE
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 FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY SEAT
MATERIALNICKEL ALLOY STEM
MAXIMUM OPERATING PRESSURE3450.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP180.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDGAS, INERT SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORANGLE


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