4820-00-289-1517 VALVE,SAFETY RELIEF Index 4820-00-289-1521 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-289-1518

Federal Supply Class:
4820

National Item Identification Number:
002891518

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:
692-4824-11ITEM1401343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
DD692S4824-11ITEM1453711NAVAL SEA SYSTEMS COMMAND
FF2250 3-4 28501343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
DD692S4824-11ITEM1480064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE OPERATION METHODAUTOMATIC OR
MANUAL
MATERIALSTEEL BODY
NICKEL ALLOY FLOW CONTROL DEVICE
NICKEL ALLOY SEAT
NICKEL ALLOY STEM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-872 MIL SPEC SINGLE MATERIAL RESPONSE BODY
FIRST CONNECTION FACE TO CENTERLINE DISTANCE3.000 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE3.000 INCHES
VALVE SIZE0.750 INCHES
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP650.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPEFLANGE ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER4.625 INCHES 1ST END
3.812 INCHES 2ND END
NOMINAL THICKNESS0.625 INCHES 1ST END
0.438 INCHES 2ND END
BOLT HOLE QUANTITY4 ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.688 INCHES 1ST END
0.562 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER3.250 INCHES 1ST END
2.688 INCHES 2ND END
FLANGE FACE DESIGNRAISED STRAIGHT 1ST END
PLAIN 2ND END
RAISED FACE NOMINAL HEIGHT0.250 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER2.500 INCHES 1ST END
BONNET TYPEEXPOSED SPRING
BONNET ATTACHMENT METHODBOLTED
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE276.0 TO 450.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDVALVE STEM LOCK SHIELD


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