4820-00-288-7841, VALVE,SAFETY RELIEF

National Stock Number:
4820-00-288-7841

Federal Supply Class:
4820

National Item Identification Number:
002887841

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:

214-3801-799121REV4PCV11	53711	NAVAL SEA SYSTEMS COMMAND
214-3801-799121REV4PCV11	80064	NAVAL SHIP SYSTEMS COMMAND
282-3801-801795REVCPCV9	53711	NAVAL SEA SYSTEMS COMMAND
4824-158796ALT11PC1-1-300	53711	NAVAL SEA SYSTEMS COMMAND
4824-158796ALT11PC1-2-300	80064	NAVAL SHIP SYSTEMS COMMAND
282-3801-801795REVCPCV9	80064	NAVAL SHIP SYSTEMS COMMAND
4824-158796PC1-2300	53711	NAVAL SEA SYSTEMS COMMAND
4824-934713ALT10PCASSEMBLYM	53711	NAVAL SEA SYSTEMS COMMAND
4824-934713ALT10PCASSEMBLYM	80064	NAVAL SHIP SYSTEMS COMMAND
4824-158796PC1-2300	80064	NAVAL SHIP SYSTEMS COMMAND

Techincal Specification:

CONNECTION TYPE	THREADED EXTERNAL PIPE SECOND END
CONNECTION TYPE	UNTHREADED INTERNAL PIPE FIRST END
CONNECTION STYLE	SOCKET (TUBE) ALL ENDS
DISK LOADING METHOD	SPRING
FLOW CONTROL DEVICE	DISK
MATERIAL	COPPER ALLOY BODY
MATERIAL	COPPER ALLOY FLOW CONTROL DEVICE
MATERIAL	NICKEL ALLOY SEAT
MATERIAL	STEEL STEM
NOMINAL PIPE SIZE ACCOMMODATED	0.500 INCHES FIRST END
NOMINAL PIPE SIZE ACCOMMODATED	0.500 INCHES SECOND END
NOMINAL THREAD SIZE	0.500 INCHES SECOND END
OPENING PRESSURE SETTING	300.0 POUNDS PER SQUARE INCH
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	AS DIFFERENTIATED BY PAC ADSV AND 1/2 IN. VALVE SIZE
STYLE DESIGNATOR	ANGLE
THREAD DIRECTION	RIGHT-HAND SECOND END
THREAD QUANTITY PER INCH	14 SECOND END
THREAD SERIES DESIGNATOR	NPT SECOND END
VALVE OPERATION METHOD	AUTOMATIC

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