4920-00-181-8926 FIXTURE,AIRCRAFT MAINTENANCE Index 4820-00-181-8935 VALVE,REGULATING,FLUID PRESSURE

National Stock Number:
4820-00-181-8934

Federal Supply Class:
4820

National Item Identification Number:
001818934

Description:
VALVE,REGULATING,FLUID PRESSURE

Detail:
A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes REGULATOR, PRESSURE, MEDICAL GAS ADMINISTRATION APPARATUS; REGULATOR, OXYGEN, BAROMETRIC CONTINUOUS FLOW; REGULATOR, OXYGEN DEMAND; REGULATOR, OXYGEN DILUTER DEMAND; and valve(1), fluid pressure regulating, aircraft.


Manufacturer Information:
ASTM F 137081346AMERICAN SOCIETY FOR TESTING AND MATERIALS
ASTM F 1370-2GF1B81346AMERICAN SOCIETY FOR TESTING AND MATERIALS
MILV204281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
END CONNECTION QUANTITY2
BODY STYLESTRAIGHT THRU
FACE TO FACE DISTANCE8.750 INCHES NOMINAL
FILTERNOT INCLUDED
FIRST END FLANGE OUTSIDE DIAMETER5.063 INCHES NOMINAL
FIRST END FLANGE SHAPE STYLEROUND W/ BOLT HOLES
FIRST END FLANGE THICKNESS0.438 INCHES NOMINAL
FIRST END BOLT CIRCLE DIAMETER3.938 INCHES NOMINAL
FIRST END BOLT HOLE DIAMETER0.563 INCHES NOMINAL
FIRST END BOLT HOLE QUANTITY6
FIRST END CONNECTION TYPEPLAIN FACE FLANGE
FIRST END STYLE DESIGNATORPLAIN
FLOW CONTROL DEVICEDIAPHRAGM
OUTLET PRESSURE RANGE+25.0 TO 60.0 POUNDS PER SQUARE INCH
MAXIMUM INLET PRESSURE RATING150.0 POUNDS PER SQUARE INCH
MEDIA FOR WHICH DESIGNEDWATER, FRESH AND WATER, SALT
NONDEFINITIVE SPEC/STD DATA2 TYPE
REGULATION TYPEAUTOMATIC DOUBLE STAGE
RENEWABLE SEAT RING TYPETHREADED
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SPECIAL TEST FEATURESHIGH-IMPACT SHOCK TESTS ARE REQUIRED AS DIRECTED IN PARAGRAPHS 3.6 AND 4.4.2.3 OF MIL-V-2042 IN PAC TEST ABOVE
TEMP RATING165.0 FAHRENHEIT NOMINAL
TEST DATA DOCUMENT81349-MILV2042 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
VALVE LOADING METHODSPRING
VALVE STEM DESIGNSINGLE SEAT


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