4820-00-203-7911 VALVE,SAFETY RELIEF Index 5845-00-203-7915 ROLLER,TABLE

National Stock Number:
4820-00-203-7912

Federal Supply Class:
4820

National Item Identification Number:
002037912

Description:
VALVE,SAFETY RELIEF

Detail:
A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.


Manufacturer Information:
5S1166ALT9AND5S1179ALT8AND5S128-80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER8.875 INCHES 1ST END
BOLT HOLE NOMINAL DIAMETER0.688 INCHES 1ST END
BOLT HOLE QUANTITY12 1ST END
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEINSIDE SPRING
CONNECTION TYPEFLANGE 2ND END
CONNECTION TYPEFLANGE 1ST END
DISK LOADING METHODSPRING
EXTRA LONG REFERENCE NUMBER5S1166ALT9AND5S1179ALT8AND5S1287ALT2
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FIRST CONNECTION FACE TO CENTERLINE DISTANCE8.000 INCHES
FLANGE FACE DESIGNPLAIN 1ST END
FLANGE SHAPEROUND WITH HOLES 1ST END
FLOW CONTROL DEVICEDISK
MATERIALCOPPER ALLOY FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY SEAT
MATERIALCOPPER ALLOY STEM
MATERIALCOPPER ALLOY BODY
MAXIMUM OPERATING PRESSURE100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP425.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER10.125 INCHES 1ST END
NOMINAL THICKNESS0.562 INCHES 1ST END
OPENING PRESSURE SETTING2.0 POUNDS PER SQUARE INCH
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSELR NO.
SECOND CONNECTION FACE TO CENTERLINE DISTANCE8.000 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE OPERATION METHODAUTOMATIC OR MANUAL


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