4820-01-010-1126 VALVE,GLOBE Index 4820-01-010-1128 VALVE,STOP-CHECK

National Stock Number:
4820-01-010-1127

Federal Supply Class:
4820

National Item Identification Number:
010101127

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:
MIL-DTL-2205281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-V-2205281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER7.000 INCHES ALL ENDS
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEOUTSIDE SCREW-YOKE
BOLT HOLE NOMINAL DIAMETER0.750 INCHES ALL ENDS
BOLT HOLE QUANTITY8 ALL ENDS
CONNECTION TYPEFLANGE ALL ENDS
FACE TO FACE DISTANCE8.500 INCHES
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICEDISK
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A105, GRADE 2 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-17131,MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-17131,MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALSTEEL BODY
MATERIALSTEEL CORROSION RESISTING STEM
MATERIALSTEEL FLOW CONTROL DEVICE
MATERIALSTEEL SEAT
MAXIMUM OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP775.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
MOUNTING POSITIONHORIZONTAL
NOMINAL OUTSIDE DIAMETER8.500 INCHES ALL ENDS
NOMINAL THICKNESS0.750 INCHES ALL ENDS
NONDEFINITIVE SPEC/STD DATAD COMPOSITION
RAISED FACE NOMINAL DIAMETER5.500 INCHES ALL ENDS
RAISED FACE NOMINAL HEIGHT0.062 INCHES ALL ENDS
RENEWABLE SEAT RING TYPEWELDED
SPECIAL FEATURESVALVE SIZE 3-1/2 IN.
STYLE DESIGNATORSTRAIGHT THRU
VALVE OPERATION METHODMANUAL


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