4820-00-841-4008 VALVE,STOP-CHECK Index 4820-00-841-4011 VALVE,STOP-CHECK

National Stock Number:
4820-00-841-4009

Federal Supply Class:
4820

National Item Identification Number:
008414009

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:
2620-917FIG266Y82471LENARD PACKAGING CO INC THE
2620-917FIG266Y96169ELECTRIC BOAT CORPORATION
2620-917FIG46680318BTR VALVE SEALANTS INC
FIG466Y80318BTR VALVE SEALANTS INC
FIG868Y80318BTR VALVE SEALANTS INC


Techincal Specification:
MATERIALSTEEL BODY
STEEL COMP 410 AND
STEEL FLOW CONTROL DEVICE
STEEL COMP 410 SEAT
STEEL COMP 416 STEM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A105, GRADE 2 ASSN STD SINGLE MATERIAL RESPONSE BODY
66 FED STD 1ST MATERIAL RESPONSE AND
MIL-R-17131,MIL-RCOCR-A MIL SPEC 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE
MIL-R-COCR-A,MIL-R-17131 MIL SPEC 2ND MATERIAL RESPONSE SEAT
STYLE DESIGNATORSTRAIGHT THRU Y-PATTERN
FLOW CONTROL DEVICEDISK
MAXIMUM OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHODMANUAL
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLESOCKET (PIPE) ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES ALL ENDS
MOUNTING POSITIONHORIZONTAL OR
VERTICAL
RENEWABLE SEAT RING TYPETHREADED
BONNET TYPEOUTSIDE SCREW-YOKE
BONNET ATTACHMENT METHODUNION
DISK LOADING METHODSPRING
FEATURES PROVIDEDBONNET PACKING
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY SIZE 3/4 IN.
THE MANUFACTURERS DATA
MANUFACTURERS CODE82471
DESIGN CONTROL REFERENCE2620-917FIG266Y


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