4820-01-435-1926 VALVE,LIFT-CHECK Index 5930-01-435-1928 SWITCH,ROTARY

National Stock Number:
4820-01-435-1927

Federal Supply Class:
4820

National Item Identification Number:
014351927

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:
980-00421NB39DOVER RESOURCES INC DIV NORRISEAL
980-004291363NORRISEAL NORRIS VALUES DIV DBA DOVER CO
R2030-64AA-2RM 12IN1NB39DOVER RESOURCES INC DIV NORRISEAL
R2030-64AA-2RM 12IN91363NORRISEAL NORRIS VALUES DIV DBA DOVER CO


Techincal Specification:
MATERIALCOPPER ALLOY 922 BODY
NICKEL ALLOY FLOW CONTROL DEVICE
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
NICKEL ALLOY 400 STEM
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
FACE TO FACE DISTANCE16.000 INCHES
VALVE SIZE12.000 INCHES
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP250.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHODMANUAL
CONNECTION TYPEFLANGE ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER19.000 INCHES ALL ENDS
NOMINAL THICKNESS1.250 INCHES ALL ENDS
BOLT HOLE QUANTITY12 ALL ENDS
BOLT HOLE NOMINAL DIAMETER1.000 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER17.000 INCHES ALL ENDS
FLANGE FACE DESIGNPLAIN ALL ENDS
MINIMUM OPERATING TEMP-30.0 DEG FAHRENHEIT
SPECIAL FEATURESMODEL 2000 W/2RM OPERATOR


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