4820-00-835-1251 VALVE,SAFETY RELIEF Index 4820-00-835-1253 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-835-1252

Federal Supply Class:
4820

National Item Identification Number:
008351252

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:
513-023PCALP16734293HUNTINGTON INGALLS INC
9876-002PCALP16796169ELECTRIC BOAT CORPORATION
E8512D51M01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
COPPER ALLOY AND
NICKEL ALLOY FLOW CONTROL DEVICE
NICKEL ALLOY SEAT
COPPER ALLOY STEM
FLOW CONTROL DEVICEPOPPET
CONNECTION TYPEUNTHREADED INTERNAL PIPE 1ST END
CONNECTION STYLESTREAMLINED WITH ONE BRAZING RING 1ST END
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES 1ST END
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE401.0 TO 550.0 POUNDS PER SQUARE INCH
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY MFG SPEC TYPE A1,CLASS C
THE MANUFACTURERS DATA
MANUFACTURERS CODE01343
DESIGN CONTROL REFERENCEE8512D51M


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