3020-00-833-7838 GEAR,HELICAL Index 4820-00-833-7840 VALVE,VENT

National Stock Number:
4820-00-833-7839

Federal Supply Class:
4820

National Item Identification Number:
008337839

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:
684-2-1-8D186768TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT
684-2-1/8D109990PARKER-HANNIFIN CORPORATION
788C42448306NORTHROP GRUMMAN SUPPORT SERVICES CORP
788C424H0748306NORTHROP GRUMMAN SUPPORT SERVICES CORP
788C424H0797942NORTHROP GRUMMAN SYSTEMS CORPORATION
788C42497942NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
STYLE DESIGNATORSTRAIGHT THRU
VALVE OPERATION METHODAUTOMATIC
MATERIALALUMINUM ALLOY BODY
STEEL COMP 303 FLOW CONTROL DEVICE
RUBBER SYNTHETIC SEAT
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
GAS, INERT 2ND RESPONSE
MAXIMUM OPERATING PRESSURE50.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP225.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING20.0 POUNDS PER SQUARE INCH


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