4820-01-338-4270 VALVE,CHECK Index 4820-01-338-4272 VALVE,CHECK

National Stock Number:
4820-01-338-4271

Federal Supply Class:
4820

National Item Identification Number:
013384271

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:
8928F 6IN95995WALWORTH CO THE
W92863686THE WALWORTH COMPANY


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER9.500 INCHES ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.875 INCHES ALL ENDS
BOLT HOLE QUANTITY8 ALL ENDS
CONNECTION TYPEFLANGE ALL ENDS
FACE TO FACE DISTANCE14.000 INCHES
FLANGE FACE DESIGNPLAIN ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICEDISK
MATERIALCOPPER ALLOY 836 SEAT
MATERIALIRON CAST FLOW CONTROL DEVICE
MATERIALIRON CAST BODY
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT FIRST RESPONSE
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL OUTSIDE DIAMETER11.000 INCHES ALL ENDS
NOMINAL THICKNESS1.000 INCHES ALL ENDS
OPERATING PRESSURE125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE6.000 INCHES
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS


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