4820-00-187-6697 POPPET,VALVE Index 4820-00-187-6699 POPPET,VALVE

National Stock Number:
4820-00-187-6698

Federal Supply Class:
4820

National Item Identification Number:
001876698

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:
4578FNPP04537ATWOOD & MORRILL CO. INC. DBA WEIR VALVES AND CONTROLS USA


Techincal Specification:
MATERIALNICKEL ALLOY 400 BODY
NICKEL ALLOY 400 STEM
STYLE DESIGNATORSTRAIGHT THRU W/OFFSET FLANGED ENDS
OFFSET DISTANCE2.250 INCHES
VALVE SIZE1.500 INCHES
FACE TO FACE DISTANCE12.000 INCHES
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHODMANUAL
CONNECTION TYPEFLANGE 1ST END
FLANGE SHAPEROUND 1ST END
NOMINAL OUTSIDE DIAMETER6.125 INCHES 1ST END
NOMINAL THICKNESS0.875 INCHES 1ST END
FLANGE FACE DESIGNRAISED STRAIGHT 1ST END
RAISED FACE NOMINAL HEIGHT0.250 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER2.875 INCHES 1ST END
MOUNTING POSITIONHORIZONTAL
RENEWABLE SEAT RING TYPETHREADED
BONNET TYPEINSIDE SCREW
BONNET ATTACHMENT METHODBOLTED
FEATURES PROVIDEDBONNET PACKING
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CRITICALITY CODE JUSTIFICATIONZZZY
THE MANUFACTURERS DATA
MANUFACTURERS CODE04537
DESIGN CONTROL REFERENCE4578FNPP


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