4820-00-287-5379 VALVE,PLUG Index 4820-00-287-5383 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-287-5381

Federal Supply Class:
4820

National Item Identification Number:
002875381

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:
405-417PCV2381316PORTSMOUTH NAVAL SHIPYARD
405-481PCV2381316PORTSMOUTH NAVAL SHIPYARD
417-4900-69181PCV2780064NAVAL SHIP SYSTEMS COMMAND
415-417PCV2781316PORTSMOUTH NAVAL SHIPYARD
415-419PCV2781316PORTSMOUTH NAVAL SHIPYARD
415-481PCV2781316PORTSMOUTH NAVAL SHIPYARD
417-4900-69515PCV2380064NAVAL SHIP SYSTEMS COMMAND
418-4900-1194405ALT7PCV2380064NAVAL SHIP SYSTEMS COMMAND
418-4900-1194415ALT4PCV2780064NAVAL SHIP SYSTEMS COMMAND
419-4900-724884PCV2780064NAVAL SHIP SYSTEMS COMMAND
475-4824-72316PC3-420080064NAVAL SHIP SYSTEMS COMMAND
481-4900-724123PCV2780064NAVAL SHIP SYSTEMS COMMAND
481-4900-724554PCV2380064NAVAL SHIP SYSTEMS COMMAND
42452PC3-4 20081316PORTSMOUTH NAVAL SHIPYARD


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
NICKEL ALLOY SEAT
FLOW CONTROL DEVICEDISK
CONNECTION TYPETHREADED INTERNAL PIPE 1ST END
THREADED EXTERNAL PIPE 2ND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 1ST END
PLAIN (PIPE) 2ND END
NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES 1ST END
1.000 INCHES 2ND END
THREAD SERIES DESIGNATORNPT 1ST END
NPT 2ND END
NOMINAL THREAD SIZE0.750 INCHES 1ST END
1.000 INCHES 2ND END
THREAD QUANTITY PER INCH14 1ST END
11-1/2 2ND END
THREAD DIRECTIONRIGHT-HAND 1ST END
RIGHT-HAND 2ND END
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING200.0 POUNDS PER SQUARE INCH
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY PAC ADSV AND VALVE SIZE
THE MANUFACTURERS DATA
MANUFACTURERS CODE80064
DESIGN CONTROL REFERENCE475-4824-72316PC3-4200


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