4820-00-163-5160 VALVE,SAFETY RELIEF Index 4820-00-163-5162 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-163-5161

Federal Supply Class:
4820

National Item Identification Number:
001635161

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:
A4243715187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER5.875 INCHES FIRST END
BOLT CIRCLE NOMINAL DIAMETER7.250 INCHES SECOND END
BOLT HOLE NOMINAL DIAMETER0.875 INCHES FIRST END
BOLT HOLE NOMINAL DIAMETER0.875 INCHES SECOND END
BOLT HOLE QUANTITY8 FIRST END
BOLT HOLE QUANTITY8 SECOND END
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEEXPOSED SPRING
CRITICALITY CODE JUSTIFICATIONFEAT
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLANGE FACE DESIGNRAISED STRAIGHT SECOND END
FLANGE FACE DESIGNRECESSED STRAIGHT FIRST END
FLANGE SHAPEROUND WITH HOLES SECOND END
FLANGE SHAPEROUND WITH HOLES FIRST END
FLOW CONTROL DEVICEDISK
NOMINAL OUTSIDE DIAMETER7.500 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER9.000 INCHES SECOND END
NOMINAL THICKNESS1.188 INCHES SECOND END
NOMINAL THICKNESS1.250 INCHES FIRST END
OPENING PRESSURE SETTING710.0 POUNDS PER SQUARE INCH
RAISED FACE NOMINAL DIAMETER5.500 INCHES SECOND END
RAISED FACE NOMINAL HEIGHT0.062 INCHES SECOND END
RECESS NOMINAL DEPTH0.062 INCHES FIRST END
RECESS NOMINAL DIAMETER6.875 INCHES FIRST END
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT
RENEWABLE SEAT RING TYPETHREADED
SPECIAL FEATURESITEMS ARE BEING CODED AS CRITICAL TO INSURE SOURCE INSPECTION WILL BE PERFORMED AT THE POINT OF MANUFACTURE, PRIOR TO MATERIAL RECEIPT BY THE US NAVY OR OTHER DOD COMPONENTS. THESE ITEMS ARE PIECE PARTS OR END ITEMS IN SUPPORT OF VITAL MILITARY HARDWARE NECESSARY TO SUSTAIN THE SUCCESSFUL MISSION OF THE SHIPS, SUBMARINES, AND SHORE STATIONS OF THE US NAVY. CRITICAL FEATURES INCLUDING, BUT NOT LIMITED TO, DIMENSIONS, TOLERANCES/CLEARANCES, ELECTRONIC CHARACTERISTICS, AND METALLURGICAL PROPERTIES WILL BESPECIFIED FOR GOVERNMENT Q AR (QUALITY ASSURANCE REPRESENTATIVES) TO INSURE THE HIGHEST POSSIBLE DEGREE OF QUALITY AND RELIABILITY OF THESE PARTS BEING DELIVERED UNDER NAVICP CONTRACTS
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE DISCHARGE FLOW RATE43200.0 POUNDS PER HOUR
VALVE OPERATION METHODAUTOMATIC OR MANUAL
VALVE SIZE2.500 INCHES


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