4210-00-288-6871 VALVE,CONTROL,AUTOMATIC SPRINKLE Index 4210-00-288-6873 VALVE,CONTROL,AUTOMATIC SPRINKLE

National Stock Number:
4210-00-288-6872

Federal Supply Class:
4210

National Item Identification Number:
002886872

Description:
VALVE,CONTROL,AUTOMATIC SPRINKLE

Detail:
A DEVICE DESIGNED FOR INSTALLATION IN THE MAIN RISER OF A DRY OR EMPTY PIPE AUTOMATIC SPRINKLER SYSTEM AND HELD CLOSED BY SPRING FORCE, AIR, OR WATER PRESSURE. WATER IS AUTOMATICALLY RELEASED TO THE SPRINKLER SYSTEM EITHER BY RELEASING OR LOWERING THE PRESSURE BEYOND THE MINIMUM REQUIREMENT OR ADMITTING AND INCREASING THE PRESSURE TO OVERCOME THE SPRING FORCE.


Manufacturer Information:
2653FAND2654FV9000030787BYRON W H INC A C E DIV
2653FPC1T04704537ATWOOD & MORRILL CO. INC. DBA WEIR VALVES AND CONTROLS USA
P33271905DERBYSHIRE MACHINE & TOOL CO
566551PC1T04780064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
END CONNECTION QUANTITY2
BODY STYLESTRAIGHT THRU
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEEXPOSED SPRING
FURNISHED ITEMSEMERGENCY MANUAL OPERATING DEVICE
FACE TO FACE DISTANCE12.500 INCHES NOMINAL
FIRST END CONNECTION TYPEPLAIN FACE FLANGE
FIRST END FLANGE OUTSIDE DIAMETER6.125 INCHES NOMINAL
FIRST END FLANGE SHAPE STYLEROUND W/O BOLT HOLES
FIRST END FLANGE THICKNESS0.625 INCHES NOMINAL
FIRST END STYLE DESIGNATORPLAIN
FLOW CONTROL DEVICEDISK, FLAT
MEDIA FOR WHICH DESIGNEDWATER, SALT
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM
RENEWABLE SEAT RING TYPEBONDED
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
VALVE OPERATION METHODPISTON
SPRINKLER SYSTEM FOR WHICH DESIGNEDDRY PIPE
STEM MATERIALNICKEL ALLOY
STEM MOVEMENT DIRECTIONDESCENDING


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