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National Stock Number:
4820-01-121-8903
Federal Supply Class:
4820
National Item Identification Number:
011218903
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:
| 220T4TB | 91816 | CIRCOR AEROSPACE, INC. |
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Techincal Specification:
| CONNECTION STYLE | FLARED (TUBE) FIRST END | | CONNECTION STYLE | GASKET SEAL(BOSS) SECOND END | | CONNECTION TYPE | THREADED EXTERNAL TUBE FIRST END | | CONNECTION TYPE | THREADED INTERNAL TUBE SECOND END | | FLOW CONTROL DEVICE | POPPET | | MATERIAL | STEEL COMP 303 BODY | | MAXIMUM OPERATING TEMP | 400.0 FAHRENHEIT SINGLE RESPONSE | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES SECOND END | | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS | | OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | SEAT ANGLE | 90.0 DEGREES FIRST END | | SPECIAL FEATURES | MOUNTING POSITION: HORIZONTAL OR VERTICAL | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | STRAIGHT THRU | | THREAD CLASS | 3A FIRST END | | THREAD CLASS | 3B SECOND END | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD QUANTITY PER INCH | 20 FIRST END | | THREAD SERIES DESIGNATOR | UNF SECOND END | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT (UNJ) FIRST END |
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