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National Stock Number:
4820-01-256-3582
Federal Supply Class:
4820
National Item Identification Number:
012563582
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:
| 412732 | 96214 | RAYTHEON COMPANY | | 524A-4D-28 | 91816 | CIRCOR AEROSPACE, INC. | | Z02RV04A280S | 62701 | ZEVCO INC | | Z02RV04A280S | 91816 | CIRCOR AEROSPACE, INC. |
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Techincal Specification:
| CONNECTION STYLE | PLAIN (TUBE) ALL ENDS | | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS | | FLOW CONTROL DEVICE | POPPET | | MATERIAL | ALUMINUM ALLOY BODY | | MAXIMUM OPERATING TEMP | 400.0 FAHRENHEIT SECOND RESPONSE | | MAXIMUM OPERATING TEMP | -100.0 FAHRENHEIT FIRST RESPONSE | | MEDIA FOR WHICH DESIGNED | AIR FIRST RESPONSE | | MEDIA FOR WHICH DESIGNED | CARBON DIOXIDE SECOND RESPONSE | | MEDIA FOR WHICH DESIGNED | HELIUM THIRD RESPONSE | | MEDIA FOR WHICH DESIGNED | HYDROGEN FOURTH RESPONSE | | MEDIA FOR WHICH DESIGNED | NITROGEN, GASEOUS FIFTH RESPONSE | | NOMINAL THREAD SIZE | 0.437 INCHES ALL ENDS | | OPENING PRESSURE SETTING | 28.0 POUNDS PER SQUARE INCH | | OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | STRAIGHT THRU | | THREAD CLASS | 3A ALL ENDS | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
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