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National Stock Number:
4820-01-223-2119
Federal Supply Class:
4820
National Item Identification Number:
012232119
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:
| C1058S2D100R0 | 81755 | LOCKHEED MARTIN CORPORATION | | D539-2M-100.0 | 91816 | CIRCOR AEROSPACE, INC. | | D599-2M-100.0 | 91816 | CIRCOR AEROSPACE, INC. |
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Techincal Specification:
| CONNECTION TYPE | THREADED EXTERNAL PIPE FIRST END | | CONNECTION STYLE | PLAIN (PIPE) FIRST END | | FLOW CONTROL DEVICE | POPPET | | OPENING PRESSURE SETTING | 100.0 POUNDS PER SQUARE INCH | | OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI303/SAE30303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | MAXIMUM OPERATING TEMP | 250.0 FAHRENHEIT SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | ACETYLENE SECOND RESPONSE | | MEDIA FOR WHICH DESIGNED | AIR FIRST RESPONSE | | MEDIA FOR WHICH DESIGNED | AMMONIA, GASEOUS FOURTH RESPONSE | | MEDIA FOR WHICH DESIGNED | AMMONIA, LIQUID FIFTH RESPONSE | | MEDIA FOR WHICH DESIGNED | REFRIGERANT 12 THIRD RESPONSE | | NOMINAL PIPE SIZE ACCOMMODATED | 0.250 INCHES FIRST END | | NOMINAL THREAD SIZE | 0.250 INCHES FIRST END | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | STRAIGHT THRU | | THREAD DIRECTION | RIGHT-HAND FIRST END | | THREAD SERIES DESIGNATOR | NPT FIRST END |
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