NSN 4820-01-499-5988

Part Details | SAFETY RELIEF VALVE

4820-01-499-5988 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.

Alternate Parts: 077C, PL12498531 PC NO 82, 77C, 12498531, 077C, PL12498531 PC NO 82, PL12498531, 4820-01-499-5988, 01-499-5988, 4820014995988, 014995988

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JUL 30, 200201-499-598805488 ( VALVE, SAFETY RELIEF )
REFERENCE DRAWINGS & PICTURES

ANGLE

Cross Reference | NSN 4820-01-499-5988
Part Number Cage Code Manufacturer
077C0AT62DRESSER-RAND COMPANYDBA RECIPROCATING PRODUCTS DIV
PL12498531 PC NO 820AT62DRESSER-RAND COMPANYDBA RECIPROCATING PRODUCTS DIV
77C93236DRESSER-RAND COWORTHINGTON COMPRESSOR OPN
1249853193236DRESSER-RAND COWORTHINGTON COMPRESSOR OPN
077C93236DRESSER-RAND COWORTHINGTON COMPRESSOR OPN
PL12498531 PC NO 8293236DRESSER-RAND COWORTHINGTON COMPRESSOR OPN
PL1249853193236DRESSER-RAND COWORTHINGTON COMPRESSOR OPN
Technical Data | NSN 4820-01-499-5988
Characteristic Specifications
STYLE DESIGNATOR ANGLE
FLOW CONTROL DEVICE PISTON
VALVE OPERATION METHOD AUTOMATIC
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD THREADED
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE30.0 TO 100.0 POUNDS PER SQUARE INCH
SPECIAL FEATURESDRESSER RAND PURCHASES THIS VALVE (PC 82) AND SPRING (PC 81, P/N 407S-WS) FROM FULFLO AND ASSEMBLES AND SETS CRACKING PRESSURE AT THEIR FACTORY. DRESSER RAND REFUSED TO SPECIFY CRACKING PRESSURE SETTING. SIMILAR ITEM IS 4820-01-259-8850 WHICH USES THE SAME SPRING AND IS SET AT 55 PSI.
END ITEM IDENTIFICATIONCENTRIFUGAL COMPRESSOR