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


Click here to Register for Free 30-day Trial