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 TYPETHREADED EXTERNAL BOSS 2ND END
CONNECTION TYPETHREADED EXTERNAL TUBE 1ST END
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) 2ND END
CONNECTION STYLEFLARED (TUBE) 1ST 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 BODY
MATERIALALUMINUM ALLOY 2024 FLOW CONTROL DEVICE
MATERIALRUBBER SYNTHETIC SEAT
MAXIMUM OPERATING PRESSURE175.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP165.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDOIL, HYDRAULIC SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES 1ST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES 2ND END
NOMINAL THREAD SIZE0.437 INCHES 1ST END
NOMINAL THREAD SIZE0.625 INCHES 2ND END
OPENING PRESSURE SETTING170.0 POUNDS PER SQUARE INCH
RENEWABLE SEAT RING TYPEPRESSED-IN
SEAT ANGLE37.0 DEGREES 1ST END
SURFACE TREATMENTANODIZE
THREAD CLASS3A 1ST END
THREAD CLASS3A 2ND END
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD DIRECTIONRIGHT-HAND 2ND END
THREAD SERIES DESIGNATORUNEF 2ND END
THREAD SERIES DESIGNATORUNF 1ST END
THREAD QUANTITY PER INCH24 2ND END
VALVE DISCHARGE FLOW RATE0.1 CUBIC METERS PER MINUTE
VALVE OPERATION METHODAUTOMATIC


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