4820-00-172-9121 VALVE,SAFETY RELIEF Index 4820-00-172-9123 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-172-9122

Federal Supply Class:
4820

National Item Identification Number:
001729122

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:
5769400015187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
A32934-215187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP


Techincal Specification:
BOLT HOLE NOMINAL DIAMETER0.750 INCHES 1ST END
BOLT CIRCLE NOMINAL DIAMETER4.875 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER6.000 INCHES 1ST END
BOLT HOLE NOMINAL DIAMETER1.125 INCHES 2ND END
BOLT HOLE QUANTITY4 1ST END
BOLT HOLE QUANTITY4 2ND END
BONNET TYPEEXPOSED SPRING
BONNET ATTACHMENT METHODBOLTED
CONNECTION TYPEFLANGE 2ND END
CONNECTION TYPEFLANGE 1ST END
CRITICALITY CODE JUSTIFICATIONFEAT
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLANGE FACE DESIGNRAISED STRAIGHT 1ST END
FLANGE FACE DESIGNPLAIN 2ND END
FLANGE SHAPEROUND WITH HOLES 1ST END
FLANGE SHAPEROUND WITH HOLES 2ND END
FLOW CONTROL DEVICEDISK
NOMINAL OUTSIDE DIAMETER7.000 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER7.500 INCHES 1ST END
NOMINAL THICKNESS0.688 INCHES 1ST END
NOMINAL THICKNESS1.312 INCHES 2ND END
OPENING PRESSURE SETTING643.0 POUNDS PER SQUARE INCH
RAISED FACE NOMINAL DIAMETER5.000 INCHES 1ST END
RAISED FACE NOMINAL HEIGHT0.062 INCHES 1ST END
RENEWABLE SEAT RING TYPETHREADED
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE DISCHARGE FLOW RATE18882.0 POUNDS PER HOUR
VALVE OPERATION METHODAUTOMATIC OR MANUAL
VALVE SIZE1.500 INCHES


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