4820-01-313-4549 VALVE,SAFETY RELIEF Index 4810-01-313-4551 VALVE,SOLENOID

National Stock Number:
4820-01-313-4550

Federal Supply Class:
4820

National Item Identification Number:
013134550

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:
16 R285B-147AA-2TM91363NORRISEAL NORRIS VALUES DIV DBA DOVER CO
R2858-147AA-2PM91363NORRISEAL NORRIS VALUES DIV DBA DOVER CO
R285B-147AA-2PM/920P179 16IN91363NORRISEAL NORRIS VALUES DIV DBA DOVER CO


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER21.250 INCHES ALL ENDS
BOLT HOLE NOMINAL DIAMETER1.125 INCHES ALL ENDS
BOLT HOLE QUANTITY16 ALL ENDS
CONNECTION TYPEFLANGE ALL ENDS
FACE TO FACE DISTANCE16.000 INCHES
FLANGE FACE DESIGNPLAIN ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A395 ALLOY 60-40-18 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B148 ALLOY 958 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY 958 FLOW CONTROL DEVICE
MATERIALIRON CAST UNS F32800 BODY
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
MATERIALSTEEL CORROSION RESISTING STEM
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
MOUNTING FACILITYLUG(S)
NOMINAL OUTSIDE DIAMETER23.500 INCHES ALL ENDS
NOMINAL THICKNESS1.438 INCHES ALL ENDS
OPERATING PRESSURE285.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
SPECIAL FEATURESWEATHERPROOF WORM AND GEAR OPERATOR FOR MARINE APPLICATION
VALVE OPERATION METHODMANUAL
VALVE SIZE16.000 INCHES
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS


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