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		                        | National Stock Number:
 4820-00-202-6544
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 002026544
 
 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.
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 Manufacturer Information:
 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | ANGLE FLANGED ENDS |  | VALVE OPERATION METHOD | AUTOMATIC OR |  |  | MANUAL |  | VALVE SIZE | 2.500 INCHES |  | FLOW CONTROL DEVICE | DISK |  | VALVE DISCHARGE FLOW RATE | 50600.0 POUNDS PER HOUR |  | CONNECTION TYPE | FLANGE 1ST END |  |  | FLANGE 2ND END |  | FLANGE SHAPE | ROUND WITH HOLES 1ST END |  |  | ROUND WITH HOLES 2ND END |  | NOMINAL OUTSIDE DIAMETER | 9.625 INCHES 1ST END |  |  | 9.250 INCHES 2ND END |  | BOLT HOLE QUANTITY | 8 1ST END |  |  | 9 2ND END |  | BOLT HOLE NOMINAL DIAMETER | 1.062 INCHES 1ST END |  |  | 0.812 INCHES 2ND END |  | BOLT CIRCLE NOMINAL DIAMETER | 7.500 INCHES 1ST END |  |  | 7.688 INCHES 2ND END |  | FLANGE FACE DESIGN | PLAIN 1ST END |  |  | PLAIN 2ND END |  | RAISED FACE NOMINAL DIAMETER | 6.375 INCHES 1ST END |  | RENEWABLE SEAT RING TYPE | THREADED |  | BONNET TYPE | EXPOSED SPRING |  | BONNET ATTACHMENT METHOD | BOLTED |  | DISK LOADING METHOD | SPRING |  | OPENING PRESSURE SETTING | 1355.0 POUNDS PER SQUARE INCH | 
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