4820-00-287-2996 VALVE,SAFETY RELIEF Index 4820-00-287-3014 VALVE,GLOBE

National Stock Number:
4820-00-287-3011

Federal Supply Class:
4820

National Item Identification Number:
002873011

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:
20335J51MCID88301343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20335J51MCID88311689801343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
MILV225490X3-4 400-39T063SBU03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
MILV2254981349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+39.0 TO 63.0 POUNDS PER SQUARE INCH
BONNET ATTACHMENT METHODUNION
BONNET TYPEEXPOSED SPRING
CONNECTION STYLESTREAMLINED WITH TWO BRAZING RINGS ALL ENDS
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICEDISK
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOYD4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288,COMPA FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CLASSA FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALCOPPER ALLOY 836 BODY
MATERIALCOPPER ALLOY STEM
MATERIALNICKEL ALLOY 400 FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY 400 SEAT
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDOXYGEN, GASEOUS SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES ALL ENDS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSSPECIAL CLEANING IN ACCORDANCE WITH MIL-M-9950
RENEWABLE SEAT RING TYPETHREADED
SPECIAL FEATURESPROCESS PER MIL SPEC MIL-M-9950
VALVE OPERATION METHODAUTOMATIC OR MANUAL
STYLE DESIGNATORANGLE


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