4820-01-076-0387 VALVE,GATE Index 4820-01-076-0394 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-076-0392

Federal Supply Class:
4820

National Item Identification Number:
010760392

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:
7640286184GRISWOLD INDUSTRIES
76402H86184GRISWOLD INDUSTRIES
81M-386184GRISWOLD INDUSTRIES


Techincal Specification:
MATERIALCOPPER ALLOY 922 BODY
RUBBER SYNTHETIC FLOW CONTROL DEVICE
NICKEL ALLOY 400 SEAT
NICKEL ALLOY 400 STEM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390, ALLOY D4D FED SPEC SINGLE MATERIAL RESPONSE BODY
QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT
QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
VALVE SIZE6.000 INCHES
FACE TO FACE DISTANCE20.000 INCHES
FLOW CONTROL DEVICEDISK
MAXIMUM OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHODAUTOMATIC
CONNECTION TYPEFLANGE ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER10.130 INCHES ALL ENDS
NOMINAL THICKNESS1.190 INCHES ALL ENDS
BOLT HOLE QUANTITY12 ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.688 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER8.875 INCHES ALL ENDS
FLANGE FACE DESIGNPLAIN ALL ENDS
MOUNTING POSITIONHORIZONTAL OR
VERTICAL
DISK LOADING METHODSPRING


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