4540-00-683-8568 HEATING ELEMENT,ELECTRICAL,NONIMMERSION TYPE Index 4320-00-683-8574 IMPELLER,PUMP,CENTRIFUGAL

National Stock Number:
4820-00-683-8570

Federal Supply Class:
4820

National Item Identification Number:
006838570

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:
3380100-378385MEGGITT TROY INC


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL BOSS ALL ENDS
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
MATERIALALUMINUM ALLOY OVERALL
MAXIMUM OPERATING PRESSURE30.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
NOMINAL THREAD SIZE0.437 INCHES ALL ENDS
OPENING PRESSURE SETTING25.9 POUNDS PER SQUARE INCH
SEAT ANGLE37.0 DEGREES ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3A ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORUNJ ALL ENDS
THREAD QUANTITY PER INCH20 ALL ENDS
VALVE OPERATION METHODAUTOMATIC


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