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:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
NICKEL ALLOY FLOW CONTROL DEVICE
NICKEL ALLOY SEAT
NICKEL ALLOY STEM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE BODY
QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT
QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDGAS, INERT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE3450.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP180.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
CONNECTION STYLESOCKET WITH BRAZING RING (TUBE) ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS
BONNET TYPEEXPOSED SPRING
BONNET ATTACHMENT METHODBOLTED
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE500.0 TO 3450.0 POUNDS PER SQUARE INCH


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