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National Stock Number:
4820-00-142-1020
Federal Supply Class:
4820
National Item Identification Number:
001421020
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:
| R-6134-AL | 38056 | ASHCROFT INC | | R6134AL | 16497 | DRESSER, INC. |
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Techincal Specification:
| STYLE DESIGNATOR | ANGLE FLANGED ENDS | | VALVE OPERATION METHOD | AUTOMATIC OR | | MANUAL | | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 6.000 INCHES | | SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 5.312 INCHES | | VALVE SIZE | 2.500 INCHES | | FLOW CONTROL DEVICE | DISK | | VALVE DISCHARGE FLOW RATE | 49500.0 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 | | 8.688 INCHES 2ND END | | NOMINAL THICKNESS | 1.125 INCHES 1ST END | | 0.750 INCHES 2ND END | | BOLT HOLE QUANTITY | 8 1ST END | | 9 2ND END | | BOLT HOLE NOMINAL DIAMETER | 0.812 INCHES 1ST END | | 0.812 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 | | BONNET TYPE | EXPOSED SPRING | | BONNET ATTACHMENT METHOD | BOLTED | | DISK LOADING METHOD | SPRING | | OPENING PRESSURE SETTING | 630.0 POUNDS PER SQUARE INCH | | FEATURES PROVIDED | VALVE STEM LOCK SHIELD |
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