4820-00-289-1883 VALVE,SAFETY RELIEF Index 4220-00-289-1891 LIFE PRESERVER,YOKE

National Stock Number:
4820-00-289-1884

Federal Supply Class:
4820

National Item Identification Number:
002891884

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:
20051B/20051H51S/88311768901343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20051H51SS01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
AA7071B-ITEM24-AND-ML12901343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
AA7071BANDML12901343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
AA7071BITEM2401343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
DD692S4824-245192ITEM2453711NAVAL SEA SYSTEMS COMMAND
DD692S4824-245192ITEM2480064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE+36.0/+55.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER3.125 INCHES 2ND END
BOLT HOLE NOMINAL DIAMETER0.562 INCHES 2ND END
BOLT HOLE QUANTITY4 2ND END
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEEXPOSED SPRING
CONNECTION TYPEFLANGE 2ND END
CONNECTION TYPETHREADED INTERNAL PIPE 1ST END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 1ST END
FIRST CONNECTION FACE TO CENTERLINE DISTANCE3.250 INCHES
FLANGE FACE DESIGNPLAIN 2ND END
FLANGE SHAPEROUND WITH HOLES 2ND END
FLOW CONTROL DEVICEDISK
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY SEAT
MATERIALNICKEL ALLOY STEM
MATERIALSTEEL BODY
MAXIMUM OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
PROPRIETARY CHARACTERISTICSPACS
MAXIMUM OPERATING TEMP775.0 DEG FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER4.250 INCHES 2ND END
NOMINAL PIPE SIZE ACCOMMODATED1.000 INCHES ALL ENDS
NOMINAL THICKNESS0.438 INCHES 2ND END
NOMINAL THREAD SIZE1.000 INCHES 1ST END
RENEWABLE SEAT RING TYPETHREADED
SECOND CONNECTION FACE TO CENTERLINE DISTANCE2.625 INCHES
VALVE OPERATION METHODAUTOMATIC OR MANUAL
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD SERIES DESIGNATORNPT 1ST END


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