4820-01-292-8520 VALVE,SAFETY RELIEF Index 4820-01-292-8522 VALVE,BUTTERFLY

National Stock Number:
4820-01-292-8521

Federal Supply Class:
4820

National Item Identification Number:
012928521

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.


Manufacturer Information:
10176411NB39DOVER RESOURCES INC DIV NORRISEAL
911-229 2.50IN1NB39DOVER RESOURCES INC DIV NORRISEAL
911D2291NB39DOVER RESOURCES INC DIV NORRISEAL
911D22991363NORRISEAL NORRIS VALUES DIV DBA DOVER CO
911-229 2.50IN91363NORRISEAL NORRIS VALUES DIV DBA DOVER CO


Techincal Specification:
FURNISHED ITEMS AND QUANTITY1 HANDLE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD 1ST MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 FED SPEC 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY 922 BODY
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MOUNTING FACILITYWAFER
STYLE DESIGNATORSTRAIGHT THRU
VALVE OPERATION METHODMANUAL
VALVE SIZE2.500 INCHES


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