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National Stock Number:
4810-01-500-2742
Federal Supply Class:
4810
National Item Identification Number:
015002742
Description:
VALVE,BUTTERFLY
Detail:
A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.
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Manufacturer Information:
| 105-703-025-360-212 | 04613 | EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP | | D360-2.5/105A | 04613 | EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP |
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Techincal Specification:
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BUTTERFLY VALVE | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A351 ASSN STD SINGLE MATERIAL RESPONSE BODY | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A351 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A564 ASSN STD SINGLE MATERIAL RESPONSE STEM | | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE SEAT | | MATERIAL | STEEL COMP 316 BODY | | MATERIAL | STEEL COMP 316 FLOW CONTROL DEVICE | | MATERIAL | STEEL UNS J92200 STEM | | SPECIAL FEATURES | FLATTENED BODY BORE AT STEM JOURNAL PORTS POSITION STEM BEARINGS NEAR DISC, PROVIDING MAX STEM SUPPORT; DISC TAPER PINS ARE TANGENTIALLY POSITIONED HALF IN DISC AND HALF IN STEM, PLACING THEM IN COMPRESSION RATHER THAN SHEAR, WHICH ELIMINATES POTENTIAL FOR FAILURE; TWO PIECE STEM DESIGN ALLOWS FOR HIGHCYCLING AND CREATES A LOWER DISC PROFILE WITH INCREASED CAPACITY AND A RANGEABILITY OF 33:1; POLYMER SEAT INCORPORATE A STAINLESS STEEL BRAIDED WIRE WINDING, ENCLOSED IN A U SHAPE ENVELOPE TO PROVIDE SEATING ENERGY AND MEMORY, THISWIRE WINDING ALLOWS AXIAL FLEXIBILITY IN BOTH DIRECTIONS OF FLOW, ALSO ALLOWSRADIAL FLEXIBILITY WHEN THE DISC IS NOT FULLY CLOSED, REDUCING SEAT/DISC INTERFERENCE, SEAT WEAR AND STEM TORQUE | | STYLE DESIGNATOR | STRAIGHT THRU | | VALVE OPERATION METHOD | MANUAL | | VALVE SIZE | 2.500 INCHES |
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