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National Stock Number:
4820-00-585-2069
Federal Supply Class:
4820
National Item Identification Number:
005852069
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:
| 8930B2-742 | 38056 | ASHCROFT INC | | B11-115-246 | 16497 | DRESSER, INC. |
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Techincal Specification:
| BOLT CIRCLE NOMINAL DIAMETER | 6.750 INCHES FIRST END | | BOLT HOLE NOMINAL DIAMETER | 1.125 INCHES FIRST END | | BOLT HOLE QUANTITY | 8 FIRST END | | BONNET TYPE | OUTSIDE SCREW-YOKE | | CONNECTION TYPE | FLANGE FIRST END | | CRITICALITY CODE JUSTIFICATION | ZZZY | | FLANGE FACE DESIGN | RAISED STRAIGHT FIRST END | | OPERATING PRESSURE | 2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | MATERIAL | COBALT ALLOY BODY LINING | | MATERIAL | COBALT ALLOY FLOW CONTROL DEVICE | | MATERIAL | NICKEL ALLOY BODY | | MAXIMUM OPERATING TEMP | 600.0 FAHRENHEIT SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | WATER, FRESH SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL | | NOMINAL OUTSIDE DIAMETER | 9.250 INCHES FIRST END | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | SELECTED AND TESTED FOR NUCLEAR PROPULSION PLANT SYSTEMS | | STYLE DESIGNATOR | ANGLE |
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