4820-01-213-0992 VALVE,SAFETY RELIEF Index 4820-01-213-0994 VALVE,BUTTERFLY

National Stock Number:
4820-01-213-0993

Federal Supply Class:
4820

National Item Identification Number:
012130993

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:
4IN R2030-64AA-1FM1NB39DOVER RESOURCES INC DIV NORRISEAL
4IN R2030-64AA-1FM91363NORRISEAL NORRIS VALUES DIV DBA DOVER CO
911G5081NB39DOVER RESOURCES INC DIV NORRISEAL
911G50891363NORRISEAL NORRIS VALUES DIV DBA DOVER CO
911-50891363NORRISEAL NORRIS VALUES DIV DBA DOVER CO


Techincal Specification:
MATERIALCOPPER ALLOY 922 BODY
NICKEL ALLOY FLOW CONTROL DEVICE
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
NICKEL ALLOY 400 STEM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
QQ-N-288 COMP A OR E FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
ASTM B164 CLASS A ASSN STD SINGLE MATERIAL RESPONSE STEM
STYLE DESIGNATORSTRAIGHT THRU
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP180.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHODMANUAL
BUTTERFLY VALVE SIZE4.000 INCHES
SPECIAL FEATURESMARINE TRIM THROTTLING HANDLE. NON-SPARKING FOR FUEL SERVICE.


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