4820-01-145-4186 VALVE,SAFETY RELIEF Index 4820-01-145-4188 VALVE,EXHAUST CONTROL

National Stock Number:
4820-01-145-4187

Federal Supply Class:
4820

National Item Identification Number:
011454187

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:
920-04491363NORRISEAL NORRIS VALUES DIV DBA DOVER CO
920K04491363NORRISEAL NORRIS VALUES DIV DBA DOVER CO
R1011-64AA2KM91363NORRISEAL NORRIS VALUES DIV DBA DOVER CO
R1011-64AA2RM91363NORRISEAL NORRIS VALUES DIV DBA DOVER CO


Techincal Specification:
MATERIALIRON CAST UNS F32800 BODY
NICKEL ALLOY FLOW CONTROL DEVICE
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
NICKEL ALLOY 400 STEM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A395 ALLOY 60-40-18 ASSN STD SINGLE MATERIAL RESPONSE BODY
QQ-N-288 COMP A O R 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
SPECIAL FEATURESWAFER SPAN TYPE+ WEATHERPROOF GEAR OPERATOR


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