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National Stock Number:
4820-00-942-7718
Federal Supply Class:
4820
National Item Identification Number:
009427718
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.
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Manufacturer Information:
| 2620-902X11ASSYRE1IN | 63686 | THE WALWORTH COMPANY | | 2620-902X11ASSYRE1IN | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| BONNET ATTACHMENT METHOD | UNION | | BONNET TYPE | INSIDE SCREW | | CONNECTION TYPE | UNTHREADED INTERNAL PIPE 1ST END | | CONNECTION STYLE | SOCKET (PIPE) 1ST END | | CRITICALITY CODE JUSTIFICATION | ZZZY | | DISK LOADING METHOD | WEIGHT | | FEATURES PROVIDED | BONNET PACKING | | FLOW CONTROL DEVICE | DISK | | MATERIAL | COPPER ALLOY 715 BODY | | MATERIAL | NICKEL ALLOY 400 FLOW CONTROL DEVICE | | MATERIAL | NICKEL ALLOY 400 BODY LINING | | MAXIMUM OPERATING PRESSURE | 700.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL | | NOMINAL PIPE SIZE ACCOMMODATED | 1.000 INCHES 1ST END | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY MATERIAL IN ACCORDANCE WITH ACTIVITY HXQUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS | | STYLE DESIGNATOR | STRAIGHT THRU | | VALVE OPERATION METHOD | MANUAL |
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