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National Stock Number:
4820-01-218-4611
Federal Supply Class:
4820
National Item Identification Number:
012184611
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-1 | 91816 | CIRCOR AEROSPACE, INC. | | Z02RD04A010B | 62701 | ZEVCO INC |
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Techincal Specification:
| ADJUSTABLE PRESSURE RANGE | +0.5 TO 2.5 POUNDS PER SQUARE INCH | | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS | | CONNECTION STYLE | FLARED (TUBE) ALL ENDS | | DISK LOADING METHOD | SPRING | | FURNISHED ITEMS AND QUANTITY | 1 DEFLECTOR CAP | | FLOW CONTROL DEVICE | POPPET | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE PACKING | | MATERIAL | ALUMINUM ALLOY 2024 BODY | | MATERIAL | RUBBER SYNTHETIC PACKING | | MAXIMUM OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MAXIMUM OPERATING TEMP | 280.0 FAHRENHEIT 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 | | MINIMUM OPERATING TEMP | -40.0 FAHRENHEIT | | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS | | SEAT ANGLE | 37.0 DEGREES ALL ENDS | | STYLE DESIGNATOR | STRAIGHT THRU W/BAFFLE | | THREAD CLASS | 3A ALL ENDS | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | UNJF ALL ENDS | | THREAD QUANTITY PER INCH | 20 ALL ENDS | | VALVE OPERATION METHOD | AUTOMATIC |
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