4820-00-166-0272 VALVE,SAFETY RELIEF Index 4820-00-166-0278 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-166-0277

Federal Supply Class:
4820

National Item Identification Number:
001660277

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:
G15501-1815187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC OR
MANUAL
FLOW CONTROL DEVICEDISK
VALVE DISCHARGE FLOW RATE16340.0 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
6.125 INCHES 2ND END
NOMINAL THICKNESS0.688 INCHES 1ST END
0.938 INCHES 2ND END
BOLT HOLE QUANTITY4 1ST END
4 2ND END
BOLT HOLE NOMINAL DIAMETER0.750 INCHES 1ST END
0.875 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER6.000 INCHES 1ST END
4.500 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 SETTING482.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE456.0 TO 496.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
SPECIAL FEATURESTHE END CONNECTION IDENTIFIED ABOVE AS THE SECOND END IS THE VALVE INLET
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT AND SECOND END FLANGE THICKNESS REQUIREMENT
THE MANUFACTURERS DATA
MANUFACTURERS CODE15187
DESIGN CONTROL REFERENCEG15501-18


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