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National Stock Number: 4820-00-287-3147
Federal Supply Class: 4820
National Item Identification Number: 002873147
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 | MATERIAL | COPPER ALLOY BODY | | COPPER ALLOY FLOW CONTROL DEVICE | | COPPER ALLOY SEAT | | COPPER ALLOY STEM | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 7.000 INCHES | SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 7.750 INCHES | VALVE SIZE | 2.500 INCHES | FLOW CONTROL DEVICE | DISK | VALVE DISCHARGE FLOW RATE | 49750.0 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 | NOMINAL THICKNESS | 1.625 INCHES 1ST END | | 0.938 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 | RAISED STRAIGHT 1ST END | | PLAIN 2ND END | RAISED FACE NOMINAL HEIGHT | 0.687 INCHES 1ST 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 | 1350.0 POUNDS PER SQUARE INCH |
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