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National Stock Number:
4820-00-147-5088
Federal Supply Class:
4820
National Item Identification Number:
001475088
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:
| B127A | 30263 | PIMA VALVE, LLC | | FIG 152F-3-S/C | 79342 | WILLIAM E WILLIAMS VALVE CORP | | MIL-DTL-22052 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MIL-V-22052 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | S-1221-0 4IN | 30263 | PIMA VALVE, LLC |
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Techincal Specification:
| BOLT HOLE NOMINAL DIAMETER | 0.750 INCHES ALL ENDS | | BOLT HOLE QUANTITY | 8 ALL ENDS | | BONNET ATTACHMENT METHOD | BOLTED | | BONNET TYPE | OUTSIDE SCREW-YOKE | | BOLT CIRCLE NOMINAL DIAMETER | 5.500 INCHES ALL ENDS | | CONNECTION TYPE | FLANGE ALL ENDS | | FACE TO FACE DISTANCE | 8.500 INCHES | | FEATURES PROVIDED | BONNET PACKING | | FLANGE FACE DESIGN | RAISED STRAIGHT ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | FLOW CONTROL DEVICE | DISK | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A105,GRADE 2 ASSN STD SINGLE MATERIAL RESPONSE BODY | | MATERIAL | COBALT ALLOY SEAT | | MATERIAL | COBALT ALLOY FLOW CONTROL DEVICE | | MATERIAL | STEEL BODY | | MATERIAL | STEEL CORROSION RESISTING STEM | | MAXIMUM OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MAXIMUM OPERATING TEMP | 500.0 FAHRENHEIT SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL OR VERTICAL | | NOMINAL OUTSIDE DIAMETER | 7.000 INCHES ALL ENDS | | NOMINAL THICKNESS | 0.688 INCHES ALL ENDS | | RAISED FACE NOMINAL DIAMETER | 4.125 INCHES ALL ENDS | | RAISED FACE NOMINAL HEIGHT | 0.062 INCHES ALL ENDS | | VALVE OPERATION METHOD | MANUAL | | VALVE SIZE | 4.000 INCHES | | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS | | TEST DATA DOCUMENT | 81349-MIL-S-901 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
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