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National Stock Number:
4820-00-289-3770
Federal Supply Class:
4820
National Item Identification Number:
002893770
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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Techincal Specification:
| ADJUSTABLE PRESSURE RANGE | +10.0 TO 24.0 POUNDS PER SQUARE INCH | | BOLT CIRCLE NOMINAL DIAMETER | 3.125 INCHES 2ND END | | BOLT HOLE NOMINAL DIAMETER | 0.562 INCHES 2ND END | | BOLT HOLE QUANTITY | 4 2ND END | | CONNECTION STYLE | SOCKET ALL ENDS | | CONNECTION TYPE | FLANGE 2ND END | | CONNECTION TYPE | UNTHREADED INTERNAL PIPE 1ST END | | DISK LOADING METHOD | SPRING | | FLANGE FACE DESIGN | PLAIN 2ND END | | FLANGE SHAPE | ROUND WITH HOLES 2ND END | | FLOW CONTROL DEVICE | DISK | | MATERIAL | COPPER ALLOY BODY | | MATERIAL | NICKEL ALLOY SEAT | | MATERIAL | NICKEL ALLOY STEM | | MAXIMUM OPERATING PRESSURE | 100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MAXIMUM OPERATING TEMP | 425.0 FAHRENHEIT SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE | | NOMINAL OUTSIDE DIAMETER | 4.250 INCHES 2ND END | | NOMINAL PIPE SIZE ACCOMMODATED | 1.000 INCHES 1ST END | | NOMINAL THICKNESS | 0.437 INCHES 2ND END | | SPECIAL FEATURES | W/LIFTING LEVER | | STYLE DESIGNATOR | ANGLE | | VALVE OPERATION METHOD | MANUAL |
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