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National Stock Number: 4820-01-194-2648
Federal Supply Class: 4820
National Item Identification Number: 011942648
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:
D559A-4D-100 | 91816 | CIRCOR AEROSPACE, INC. | D559A4D-100 | 91816 | CIRCOR AEROSPACE, INC. |
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Techincal Specification:
ADJUSTABLE PRESSURE RANGE | +0.5 TO 150.0 POUNDS PER SQUARE INCH | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS | CONNECTION STYLE | PLAIN (TUBE) ALL ENDS | FLOW CONTROL DEVICE | POPPET | MATERIAL | ALUMINUM ALLOY 2024 BODY | MAXIMUM OPERATING TEMP | 280.0 FAHRENHEIT SINGLE RESPONSE | MAXIMUM OPERATING PRESSURE | 15.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE | MEDIA FOR WHICH DESIGNED | FUEL/OIL, HYDROCARBON 2ND RESPONSE | MEDIA FOR WHICH DESIGNED | HELIUM 3RD RESPONSE | MEDIA FOR WHICH DESIGNED | HYDROGEN 4TH RESPONSE | MEDIA FOR WHICH DESIGNED | NITROGEN, GASEOUS 5TH RESPONSE | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS | OPENING PRESSURE SETTING | 100.0 POUNDS PER SQUARE INCH | SPECIAL FEATURES | FURNISHED WITH DEFLECTOR CAP | STYLE DESIGNATOR | ANGLE | THREAD DIRECTION | RIGHT-HAND ALL ENDS | THREAD CLASS | 3A ALL ENDS | THREAD SERIES DESIGNATOR | UNJ ALL ENDS | THREAD QUANTITY PER INCH | 20 ALL ENDS | VALVE OPERATION METHOD | AUTOMATIC |
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