4820-01-339-6640 VALVE,CHECK Index 4820-01-339-6642 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-339-6641

Federal Supply Class:
4820

National Item Identification Number:
013396641

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:
112826210AT62SIEMENS ENERGY, INC.
112826210EWW0DRESSER-RAND CO PRODUCT SUPPORT DIV A JOINT VENTURE
124511670AT62SIEMENS ENERGY, INC.
630990853711NAVAL SEA SYSTEMS COMMAND
12451167830Q4CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
124511678FGX3CURTISS-WRIGHT ELECTRO-MECHANICAL CORP
6309908-12353711NAVAL SEA SYSTEMS COMMAND
6309908-12359364HONEYWELL INTERNATIONAL INC.


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL TUBE 1ST END
MAXIMUM OPERATING PRESSURE850.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
NOMINAL THREAD SIZE0.438 INCHES 1ST END
THREAD CLASS3A 1ST END
THREAD SERIES DESIGNATORUNF 1ST END
VALVE OPERATION METHODAUTOMATIC


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