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National Stock Number:
4820-00-554-9623
Federal Supply Class:
4820
National Item Identification Number:
005549623
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:
| 1478 | 16497 | DRESSER, INC. | | 1478 | 28066 | ASHCROFT INC | | 1478 | 38056 | ASHCROFT INC | | 2478 | 38056 | ASHCROFT INC | | 2478 .75IPS 155 | 38056 | ASHCROFT INC | | 3/4 2478D-XDA1 | 38056 | ASHCROFT INC | | 3/4-2478-DXDA1 | 09790 | EATON AEROSPACE LLC DBA STERER ENGINEERING DIV VALVE & ACTUATOR | | H45MMM67005 | 38056 | ASHCROFT INC |
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Techincal Specification:
| DISK LOADING METHOD | SPRING | | BONNET TYPE | INSIDE SPRING | | BONNET ATTACHMENT METHOD | THREADED | | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END | | CONNECTION TYPE | THREADED INTERNAL PIPE 2ND END | | CONNECTION STYLE | PLAIN (PIPE) 1ST END | | CONNECTION STYLE | PLAIN,OPTIONAL END(PIPE) 2ND END | | FEATURES PROVIDED | VALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE | | FLOW CONTROL DEVICE | DISK | | MATERIAL | COPPER ALLOY STEM | | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE SEAT | | PROPRIETARY CHARACTERISTICS | PACS | | MAXIMUM OPERATING TEMP | 406.0 DEG FAHRENHEIT SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | NOMINAL THREAD SIZE | 0.750 INCHES 2ND END | | NOMINAL THREAD SIZE | 0.750 INCHES 1ST END | | OPENING PRESSURE SETTING | 45.0 POUNDS PER SQUARE INCH | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | ANGLE | | THREAD DIRECTION | RIGHT-HAND 1ST END | | THREAD DIRECTION | RIGHT-HAND 2ND END | | THREAD SERIES DESIGNATOR | NPT 2ND END | | THREAD SERIES DESIGNATOR | NPT 1ST END |
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