4820-00-220-1854 VALVE,SAFETY RELIEF Index 4820-00-220-1856 VALVE,CHECK

National Stock Number:
4820-00-220-1855

Federal Supply Class:
4820

National Item Identification Number:
002201855

Description:
VALVE,CHECK

Detail:
A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.


Manufacturer Information:
497-16DT-6509990PARKER-HANNIFIN CORPORATION
497-16DT6586768TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT


Techincal Specification:
CONNECTION STYLEFLARED (TUBE) FIRST END
CONNECTION STYLEGASKET SEAL (BOSS) SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED INTERNAL BOSS SECOND END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
MATERIALALUMINUM ALLOY BODY
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES FIRST END
NOMINAL THREAD SIZE1.312 INCHES FIRST END
NOMINAL THREAD SIZE1.312 INCHES SECOND END
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
SPECIAL FEATURES65.0 PSI VALVE OPENING PRESSURE
SEAT ANGLE37.0 DEGREES FIRST END
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTANODIZE
THREAD CLASS3A FIRST END
THREAD CLASS3B SECOND END
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD QUANTITY PER INCH12 FIRST END
THREAD QUANTITY PER INCH12 SECOND END
THREAD SERIES DESIGNATORUN FIRST END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT (UNJ) SECOND END


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