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National Stock Number:
4820-00-142-1022
Federal Supply Class:
4820
National Item Identification Number:
001421022
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:
| DD445S5103-38 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | R6134A0 | 16497 | DRESSER, INC. |
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Techincal Specification:
| STYLE DESIGNATOR | ANGLE | | VALVE OPERATION METHOD | AUTOMATIC | | MATERIAL | STEEL BODY | | STEEL CORROSION RESISTING FLOW CONTROL DEVICE | | STEEL CORROSION RESISTING SEAT | | STEEL CORROSION RESISTING STEM | | FLOW CONTROL DEVICE | POPPET | | VALVE DISCHARGE FLOW RATE | 44700.0 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 | 7.500 INCHES 1ST END | | 8.687 INCHES 2ND END | | NOMINAL THICKNESS | 1.437 INCHES 1ST END | | 0.875 INCHES 2ND END | | BOLT HOLE QUANTITY | 8 1ST END | | 8 2ND END | | BOLT HOLE NOMINAL DIAMETER | 0.812 INCHES 1ST END | | 0.187 INCHES 2ND END | | BOLT CIRCLE NOMINAL DIAMETER | 5.875 INCHES 1ST END | | 7.125 INCHES 2ND END | | FLANGE FACE DESIGN | RAISED STRAIGHT 1ST END | | PLAIN 2ND END | | RAISED FACE NOMINAL HEIGHT | 0.250 INCHES 1ST END | | RAISED FACE NOMINAL DIAMETER | 4.125 INCHES 1ST END | | DISK LOADING METHOD | SPRING | | OPENING PRESSURE SETTING | 639.0 POUNDS PER SQUARE INCH |
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