4820-01-205-7819 VALVE,GLOBE Index 4820-01-205-7821 VALVE,CHECK

National Stock Number:
4820-01-205-7820

Federal Supply Class:
4820

National Item Identification Number:
012057820

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:
110D-R(CAT)99565ADMIRAL VALVE LLC
A-983799565ADMIRAL VALVE LLC
A-9837 CAT. 110D 2.0099565ADMIRAL VALVE LLC


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONZZZY
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEDISK
MATERIALSTEEL OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
SUPPLEMENTARY FEATURESOPTIONAL FLOW CONTROL DEVICE: STEM
VALVE OPERATION METHODAUTOMATIC


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