3110-01-312-9420 BEARING,ROLLER,CYLINDRICAL Index 4810-01-312-9422 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-312-9421

Federal Supply Class:
4820

National Item Identification Number:
013129421

Description:
VALVE,SAFETY RELIEF,OXYGEN SYSTE

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 OR RELIEF VALVE, AND MAY BE SET TO CLOSE AT A PREDETERMINED PRESSURE. IT IS NOT DESIGNED FOR REGULATION OF CONTINUOUSLY FLUCTUATING LOADS. IT IS SPECIFICALLY DESIGNED AND/OR CLEANED FOR OXYGEN SYSTEMS. SEE VALVE, SAFETY RELIEF.


Manufacturer Information:
508-0049-3-590D4Y1ROCKWOOD SWENDEMAN
710EACA-A0D4Y1ROCKWOOD SWENDEMAN
710EACD-A0590D4Y1ROCKWOOD SWENDEMAN
C3018067053HYDRA RIG CRYOGENICS INC


Techincal Specification:
MATERIALCOPPER ALLOY BODY
STYLE DESIGNATORANGLE
MEDIA FOR WHICH DESIGNEDNITROGEN, LIQUID BODY LINING
OXYGEN, LIQUID FLOW CONTROL DEVICE
VALVE OPERATION METHODAUTOMATIC
CONNECTION TYPETHREADED EXTERNAL PIPE 1ST END
THREADED INTERNAL PIPE 2ND END
CONNECTION STYLEPLAIN (PIPE) 1ST END
PLAIN,OPTIONAL END(PIPE) 2ND END
THREAD SERIES DESIGNATORNPT 1ST END
NPT 2ND END
NOMINAL THREAD SIZE0.500 INCHES 1ST END
0.750 INCHES 2ND END
THREAD DIRECTIONRIGHT-HAND 1ST END
RIGHT-HAND 2ND END
OPENING PRESSURE SETTING59.0 POUNDS PER SQUARE INCH
MINIMUM OPERATING TEMP-320.0 DEG FAHRENHEIT
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
CRITICALITY CODE JUSTIFICATIONFEAT


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