4820-01-057-3217 VALVE,GLOBE Index 4820-01-057-3219 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-057-3218

Federal Supply Class:
4820

National Item Identification Number:
010573218

Description:
VALVE,CHECK

Detail:
A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.


Manufacturer Information:
2620-927X11-ASS96169ELECTRIC BOAT CORPORATION
2620-927X11-ASSY6C-1IN96169ELECTRIC BOAT CORPORATION
2621-927-11ASSY1C11836NATIONAL OILWELL
2621-927-11ASSY1C96169ELECTRIC BOAT CORPORATION
SS845-2181483AS53711NAVAL SEA SYSTEMS COMMAND
SS845-2181483ASSY6C-1IN53711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
BOLT HOLE NOMINAL DIAMETER0.750 INCHES ALL ENDS
BOLT HOLE QUANTITY4 ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER3.500 INCHES ALL ENDS
CONNECTION TYPEFLANGE ALL ENDS
DISK LOADING METHODWEIGHT
FACE TO FACE DISTANCE8.000 INCHES
FLANGE FACE DESIGNPLAIN ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICEDISK
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A351, GRADE CF8M ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
MAXIMUM OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL OUTSIDE DIAMETER4.875 INCHES ALL ENDS
NOMINAL THICKNESS0.688 INCHES ALL ENDS
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE1.000 INCHES
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS


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