4820-00-775-9000 VALVE,ANGLE Index 4820-00-775-9002 VALVE,CHECK

National Stock Number:
4820-00-775-9001

Federal Supply Class:
4820

National Item Identification Number:
007759001

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:
2R220099240CRISSAIR INC
901964218876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+170.0 TO 180.0 POUNDS PER SQUARE INCH
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEFLARED (TUBE) FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
DISK LOADING METHODSPRING
FEATURES PROVIDEDVALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICEPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIALALUMINUM ALLOY 2024 FLOW CONTROL DEVICE
MATERIALALUMINUM ALLOY 2024 BODY
MATERIALRUBBER SYNTHETIC SEAT
MAXIMUM OPERATING TEMP165.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDOIL, HYDRAULIC SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES SECOND END
NOMINAL THREAD SIZE0.437 INCHES FIRST END
NOMINAL THREAD SIZE0.625 INCHES SECOND END
OPENING PRESSURE SETTING170.0 POUNDS PER SQUARE INCH
OPERATING PRESSURE175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
RENEWABLE SEAT RING TYPEPRESSED-IN
SEAT ANGLE37.0 DEGREES FIRST END
VALVE DISCHARGE FLOW RATE0.1 CUBIC METERS PER MINUTE
VALVE OPERATION METHODAUTOMATIC
SURFACE TREATMENTANODIZE LOCATION NOT OTHERWISE SPECIFIED
THREAD CLASS3A FIRST END
THREAD CLASS3A SECOND END
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD QUANTITY PER INCH24 SECOND END
THREAD SERIES DESIGNATORUNEF SECOND END
THREAD SERIES DESIGNATORUNF FIRST END


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