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:
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE OPERATION METHODAUTOMATIC OR
MANUAL
VALVE SIZE1.500 INCHES
FLOW CONTROL DEVICEDISK
VALVE DISCHARGE FLOW RATE18882.0 POUNDS PER HOUR
CONNECTION TYPEFLANGE 1ST END
FLANGE 2ND END
FLANGE SHAPEROUND WITH HOLES 1ST END
ROUND WITH HOLES 2ND END
NOMINAL OUTSIDE DIAMETER7.500 INCHES 1ST END
7.000 INCHES 2ND END
NOMINAL THICKNESS0.688 INCHES 1ST END
1.312 INCHES 2ND END
BOLT HOLE QUANTITY4 1ST END
4 2ND END
BOLT HOLE NOMINAL DIAMETER0.750 INCHES 1ST END
1.125 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER6.000 INCHES 1ST END
4.875 INCHES 2ND END
FLANGE FACE DESIGNRAISED STRAIGHT 1ST END
PLAIN 2ND END
RAISED FACE NOMINAL HEIGHT0.062 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER5.000 INCHES 1ST END
RENEWABLE SEAT RING TYPETHREADED
BONNET TYPEEXPOSED SPRING
BONNET ATTACHMENT METHODBOLTED
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING643.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
CRITICALITY CODE JUSTIFICATIONFEAT


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