4820-01-088-2873 VALVE,CHECK Index 4810-01-088-2875 VALVE,SOLENOID

National Stock Number:
4820-01-088-2874

Federal Supply Class:
4820

National Item Identification Number:
010882874

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:
581R55H0191816CIRCOR AEROSPACE, INC.
581R85597942NORTHROP GRUMMAN SYSTEMS CORPORATION
D559A-8D-4591816CIRCOR AEROSPACE, INC.
581R855H0197942NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
STYLE DESIGNATORSTRAIGHT THRU W/BAFFLE
VALVE OPERATION METHODAUTOMATIC
MATERIALALUMINUM ALLOY 2024 BODY
STEEL COMP 303 FLOW CONTROL DEVICE
ALUMINUM ALLOY 2024 SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY
QQ-S-764,TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
QQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE SEAT
SURFACE TREATMENTANODIZE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
ALCOHOL, ETHYL 2ND RESPONSE
AMMONIA, GASEOUS 3RD RESPONSE
FUEL/OIL, HYDROCARBON 4TH RESPONSE
HELIUM 5TH RESPONSE
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP-40.0 DEG FAHRENHEIT 1ST RESPONSE
280.0 DEG FAHRENHEIT 2ND RESPONSE
VALVE DISCHARGE FLOW RATE40.0 CUBIC FEET PER MINUTE
CONNECTION TYPETHREADED EXTERNAL TUBE 1ST END
CONNECTION STYLEPLAIN (TUBE) 1ST END
THREAD SERIES DESIGNATORUNJF 1ST END
NOMINAL THREAD SIZE0.750 INCHES 1ST END
THREAD QUANTITY PER INCH16 1ST END
THREAD CLASS3A 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING45.0 POUNDS PER SQUARE INCH
FURNISHED ITEMS AND QUANTITY1 DEFLECTOR CAP


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