4820-00-289-1788 VALVE,SAFETY RELIEF Index 4820-00-289-1795 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-289-1789

Federal Supply Class:
4820

National Item Identification Number:
002891789

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:
MILV2006581349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
R6215AM16497DRESSER, INC.
TYPE151216497DRESSER, INC.


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+91.0 TO 144.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER2.625 INCHES SECOND END
BOLT HOLE NOMINAL DIAMETER0.562 INCHES SECOND END
BOLT HOLE QUANTITY4 SECOND END
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEEXPOSED SPRING
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) FIRST END
CONNECTION TYPEFLANGE SECOND END
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
DISK LOADING METHODSPRING
FURNISHED ITEMS AND QUANTITY1 SIGHT GAGE
FEATURES PROVIDEDVALVE STEM LOCK SHIELD
FIRST CONNECTION FACE TO CENTERLINE DISTANCE3.750 INCHES
FLANGE FACE DESIGNRAISED STRAIGHT SECOND END
FLANGE SHAPEROUND WITH HOLES SECOND END
FLOW CONTROL DEVICEDISK
OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-15083 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING SEAT
MATERIALSTEEL CORROSION RESISTING STEM
MATERIALSTEEL UNS J03008 BODY
MAXIMUM OPERATING TEMP400.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER3.750 INCHES SECOND END
NOMINAL THICKNESS0.562 INCHES SECOND END
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES FIRST END
NOMINAL THREAD SIZE0.500 INCHES FIRST END
NONDEFINITIVE SPEC/STD DATA1 TYPE AND D COMPOSITION
RAISED FACE NOMINAL DIAMETER2.000 INCHES SECOND END
RAISED FACE NOMINAL HEIGHT0.250 INCHES SECOND END
RENEWABLE SEAT RING TYPETHREADED
SECOND CONNECTION FACE TO CENTERLINE DISTANCE1.812 INCHES
VALVE OPERATION METHODAUTOMATIC OR MANUAL
STYLE DESIGNATORANGLE FLANGED ENDS
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD QUANTITY PER INCH14 FIRST END
THREAD SERIES DESIGNATORNPT FIRST END


Click here to Register for Free 30-day Trial