4820-01-579-6226 VALVE,FLOW CONTROL Index 4820-01-579-6485 VALVE,CHECK

National Stock Number:
4820-01-579-6249

Federal Supply Class:
4820

National Item Identification Number:
015796249

Description:
VALVE,STOP-CHECK

Detail:
A VALVE WITH A BOLT OR STEM THAT MAY BE MECHANICALLY ACTUATED TO TWO DIFFERENT POSITIONS BY ROTARY OR LINEAR MOTION. IN THE FIRST POSITION, THE VALVE DISK IS LOCATED AND LOCKED AGAINST THE SEAT PERMITTING NO FLUID FLOW THROUGH THE VALVE. IN THE SECOND POSITION, ONE SIDE OF THE VALVE DISK IS LOCATED AGAINST THE SEAT PERMITTING MOVEMENT OF THE DISK IN A MANNER THAT WILL ALLOW A FLOW OF FLUID IN ONE DIRECTION THROUGH THE VALVE. THE VALVE DISK MAY BE SPRING LOADED. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN. SEE ALSO VALVE (1), LIFT-CHECK AND VALVE (1), STOP-LIFT-CHECK.


Manufacturer Information:
162B-A22J 1/476364MILWAUKEE VALVE CO, INC
162B-A22J 1476364MILWAUKEE VALVE CO, INC
803-4384536-12B AF MODIFIED80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
DEPARTURE FROM CITED DOCUMENTMODIFIED BY MATERIAL OF VITON FOR BONNET O-RING AND UNION O-RINGS
BONNET TYPEPACKING RETAINING
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLESOCKET (PIPE) ALL ENDS
FURNISHED ITEMS AND QUANTITY1 HANDWHEEL AND 2 TAILPIECE AND 2 NUT
FLOW CONTROL DEVICEDISK
MATERIALCOPPER ALLOY 922 BODY
MATERIALNICKEL ALLOY SEAT
MATERIALNICKEL ALLOY STEM
MATERIALPLASTIC POLYAMIDE FLOW CONTROL DEVICE
PART NAME ASSIGNED BY CONTROLLING AGENCYGLOBE VALVE, S/C
PROPRIETARY CHARACTERISTICSPACS
MAXIMUM OPERATING TEMP250.0 DEG FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDWATER, FRESH SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES ALL ENDS
NONDEFINITIVE SPEC/STD DATA1 (0.) SIZE AND 2 TYPE AND B CLASS
SPECIAL FEATURESDISK MATERIAL IS KEL-F81; PACKING MATERIAL IS GRAPHITIC
SPECIFICATION/STANDARD DATA80064-803-4384536 GOVERNMENT SPECIFICATION
VALVE OPERATION METHODMANUAL OR AUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU


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