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National Stock Number:
4820-01-200-8556
Federal Supply Class:
4820
National Item Identification Number:
012008556
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:
| 1900D | 16497 | DRESSER, INC. | | 1900D-1912DC 44 | 16497 | DRESSER, INC. | | 1900D-1912DC 448PSI BBT | 16497 | DRESSER, INC. | | 1912-00D-2-CC-MS-31-RF-LA-H | 16497 | DRESSER, INC. | | 1912DC-00-2MS-31-RF-LA | 16497 | DRESSER, INC. |
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Techincal Specification:
| VALVE OPERATION METHOD | AUTOMATIC | | MATERIAL | STEEL CORROSION RESISTING BODY | | STEEL CORROSION RESISTING FLOW CONTROL DEVICE | | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 4.500 INCHES | | SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 4.125 INCHES | | VALVE SIZE | 1.000 INCHES | | FLOW CONTROL DEVICE | DISK | | CONNECTION TYPE | FLANGE 1ST END | | FLANGE SHAPE | ROUND WITH HOLES 1ST END | | ROUND WITH HOLES 2ND END | | NOMINAL OUTSIDE DIAMETER | 6.000 INCHES 1ST END | | 4.875 INCHES 2ND END | | NOMINAL THICKNESS | 0.688 INCHES 1ST END | | 0.688 INCHES 2ND END | | BOLT HOLE NOMINAL DIAMETER | 0.750 INCHES 1ST END | | 0.750 INCHES 2ND END | | BOLT CIRCLE NOMINAL DIAMETER | 4.750 INCHES 1ST END | | 3.500 INCHES 2ND END | | FLANGE FACE DESIGN | RAISED STRAIGHT 1ST END | | RAISED FACE NOMINAL HEIGHT | 0.062 INCHES 1ST END | | RAISED FACE NOMINAL DIAMETER | 3.625 INCHES 1ST END | | BONNET TYPE | INSIDE SPRING | | BONNET ATTACHMENT METHOD | BOLTED | | DISK LOADING METHOD | SPRING | | OPENING PRESSURE SETTING | 448.0 POUNDS PER SQUARE INCH | | SPECIAL FEATURES | WITH NOZZLE ON INLET END |
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