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National Stock Number:
4820-00-122-1158
Federal Supply Class:
4820
National Item Identification Number:
001221158
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:
| 4231940 | 18355 | THE BOEING COMPANY | | 4231940 | 88277 | THE BOEING COMPANY |
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Techincal Specification:
| CONNECTION STYLE | INVERTED FLARE (TUBE) 1ST END | | CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END | | DISK LOADING METHOD | SPRING | | FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE | | FLOW CONTROL DEVICE | POPPET | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.500 INCHES 1ST END | | NOMINAL THREAD SIZE | 0.750 INCHES 1ST END | | OPENING PRESSURE SETTING | 1800.0 POUNDS PER SQUARE INCH | | STYLE DESIGNATOR | ANGLE | | TEST DATA DOCUMENT | 18355-1100 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). | | THREAD CLASS | 3A 1ST END | | THREAD DIRECTION | RIGHT-HAND 1ST END | | THREAD QUANTITY PER INCH | 16 1ST END | | THREAD SERIES DESIGNATOR | UNF 1ST END | | VALVE OPERATION METHOD | AUTOMATIC | | VALVE DISCHARGE FLOW RATE | 10.0 GALLONS PER MINUTE |
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