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National Stock Number:
4820-01-350-3686
Federal Supply Class:
4820
National Item Identification Number:
013503686
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:
| 334220 | 33654 | HOWDEN FLUID SYSTEMS | | 334220P01 | 33654 | HOWDEN FLUID SYSTEMS | | 334220P01 | 58163 | MEGGITT (NORTH HOLLYWOOD), INC. | | 577A1-4D-30 | 91816 | CIRCOR AEROSPACE, INC. |
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Techincal Specification:
| CONNECTION TYPE | THREADED EXTERNAL BOSS ALL ENDS | | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS | | DISK LOADING METHOD | SPRING | | FLOW CONTROL DEVICE | DISK | | MATERIAL | ALUMINUM ALLOY BODY | | MAXIMUM OPERATING TEMP | 180.0 FAHRENHEIT SINGLE RESPONSE | | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS | | OPENING PRESSURE SETTING | 30.0 POUNDS PER SQUARE INCH | | STYLE DESIGNATOR | STRAIGHT THRU | | SURFACE TREATMENT | ANODIZE LOCATION NOT OTHERWISE SPECIFIED | | THREAD CLASS | 3A ALL ENDS | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT (UNJ) ALL ENDS | | THREAD QUANTITY PER INCH | 20 ALL ENDS | | VALVE OPERATION METHOD | AUTOMATIC | | VALVE DISCHARGE FLOW RATE | 0.7 GALLONS PER MINUTE |
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