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National Stock Number: 4820-01-494-9781
Federal Supply Class: 4820
National Item Identification Number: 014949781
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:
128A-1/4-200# | 81400 | HASKEL INTERNATIONAL, LLC | 128A-2-200 | 75336 | F.C.KINGSTON CO. DBA STORM MANUFACTURING |
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Techincal Specification:
BONNET TYPE | INSIDE SCREW | BONNET ATTACHMENT METHOD | INTEGRAL | CONNECTION TYPE | THREADED EXTERNAL PIPE ALL ENDS | CONNECTION STYLE | PLAIN (PIPE) ALL ENDS | FLOW CONTROL DEVICE | DISK | MATERIAL | COPPER ALLOY SEAT | MATERIAL | COPPER ALLOY BODY | NOMINAL THREAD SIZE | 0.250 INCHES ALL ENDS | NOMINAL PIPE SIZE ACCOMMODATED | 0.250 INCHES ALL ENDS | OPENING PRESSURE SETTING | 200.0 POUNDS PER SQUARE INCH | STYLE DESIGNATOR | ANGLE | THREAD DIRECTION | RIGHT-HAND ALL ENDS | THREAD SERIES DESIGNATOR | NPT ALL ENDS | VALVE OPERATION METHOD | AUTOMATIC |
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