4820-00-452-2253 VALVE,PLUG Index 4730-00-452-2258 BUSHING,PIPE

National Stock Number:
4820-00-452-2254

Federal Supply Class:
4820

National Item Identification Number:
004522254

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.


Manufacturer Information:
510225-280020NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2
8-2167-486768TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+1500.0 TO 2750.0 POUNDS PER SQUARE INCH
BONNET TYPEPACKING RETAINING
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) FIRST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
MATERIALCOPPER ALLOY AND STEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY AND STEEL CORROSION RESISTING BODY
MATERIALCOPPER ALLOY AND STEEL CORROSION RESISTING SEAT
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES FIRST END
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES SECOND END
NOMINAL THREAD SIZE0.250 INCHES FIRST END
NOMINAL THREAD SIZE0.250 INCHES SECOND END
OPENING PRESSURE SETTING2600.0 POUNDS PER SQUARE INCH
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD QUANTITY PER INCH18 FIRST END
THREAD QUANTITY PER INCH18 SECOND END
THREAD SERIES DESIGNATORNPT FIRST END
THREAD SERIES DESIGNATORNPT SECOND END
VALVE OPERATION METHODAUTOMATIC


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