4820-01-310-4255 VALVE,CHECK Index 4820-01-310-4257 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-310-4256

Federal Supply Class:
4820

National Item Identification Number:
013104256

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:
151F-5 4.00IPS 899479342WILLIAM E WILLIAMS VALVE CORP
899479342WILLIAM E WILLIAMS VALVE CORP


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER7.500 INCHES ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.750 INCHES ALL ENDS
BOLT HOLE QUANTITY8 ALL ENDS
CONNECTION TYPEFLANGE ALL ENDS
FACE TO FACE DISTANCE11.500 INCHES
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICEDISK
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A216 GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY SEAT
MATERIALSTEEL UNS J03002 BODY
MOUNTING POSITIONHORIZONTAL
NOMINAL OUTSIDE DIAMETER9.000 INCHES ALL ENDS
NOMINAL THICKNESS0.937 INCHES ALL ENDS
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
RAISED FACE NOMINAL DIAMETER3.500 INCHES ALL ENDS
RAISED FACE NOMINAL HEIGHT0.062 INCHES ALL ENDS
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE4.000 INCHES
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS


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