4320-00-409-0780 RING,WEARING Index 4820-00-409-0782 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-409-0781

Federal Supply Class:
4820

National Item Identification Number:
004090781

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:
5177T16TB7091816CIRCOR AEROSPACE, INC.


Techincal Specification:
CONNECTION STYLEFLARED (TUBE) FIRST ENDFLARED (TUBE) FIRST END
CONNECTION STYLEGASKET SEAL(BOSS) SECOND ENDGASKET SEAL(BOSS) SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST ENDTHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED INTERNAL BOSS SECOND ENDTHREADED INTERNAL BOSS SECOND END
DISK LOADING METHODSPRINGSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDEPRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICEPOPPETPOPPET
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE250.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDHELIUM SECOND RESPONSEFUEL/OIL, HYDROCARBON FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDNITROGEN, GASEOUS THIRD RESPONSEHELIUM SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS FOURTH RESPONSE
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS FOURTH RESPONSENITROGEN, GASEOUS THIRD RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES SECOND END1.000 INCHES FIRST END
NOMINAL THREAD SIZE1.312 INCHES SECOND END1.312 INCHES SECOND END
NOMINAL THREAD SIZE1.312 INCHES FIRST END1.312 INCHES FIRST END
OPENING PRESSURE SETTING70.0 POUNDS PER SQUARE INCH
OPERATING PRESSURE2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
SEAT ANGLE37.0 DEGREES FIRST END
VALVE OPERATION METHODAUTOMATICAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF SEPARABLE SECTIONS.
THREAD CLASS3A FIRST END3A FIRST END
THREAD CLASS3B SECOND END3B SECOND END
THREAD DIRECTIONRIGHT-HAND FIRST ENDRIGHT-HAND FIRST END
THREAD DIRECTIONRIGHT-HAND SECOND ENDRIGHT-HAND SECOND END
THREAD QUANTITY PER INCH12 FIRST END12 FIRST END
THREAD QUANTITY PER INCH12 SECOND END12 SECOND END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT (UNJ) SECOND END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT (UNJ) SECOND ENDUN FIRST END


Click here to Register for Free 30-day Trial