4820-01-271-7889 VALVE,SAFETY RELIEF Index 4730-01-271-7891 PLUG,PIPE

National Stock Number:
4820-01-271-7890

Federal Supply Class:
4820

National Item Identification Number:
012717890

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:
2.5 D2030-645A-1FM91363NORRISEAL NORRIS VALUES DIV DBA DOVER CO
911-5581NB39DOVER RESOURCES INC DIV NORRISEAL
911D558 MDL 2.5D2030-645A-1FM1NB39DOVER RESOURCES INC DIV NORRISEAL
911D558 MDL 2.5D2030-645A-1FM91363NORRISEAL NORRIS VALUES DIV DBA DOVER CO
911-55891363NORRISEAL NORRIS VALUES DIV DBA DOVER CO


Techincal Specification:
MATERIALCOPPER ALLOY 922 BODY
NICKEL ALLOY FLOW CONTROL DEVICE
NICKEL ALLOY 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
QQ-N-288 COMP A OR E FED SPEC SINGLE MATERIAL RESPONSE SEAT
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 TEMP400.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHODMANUAL
MOUNTING FACILITYWAFER
SPECIAL FEATURESMARINE TRIM THROTTLING HANDLE. NON-SPARKING FOR FUEL SERVICE


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