4820-01-254-8677 VALVE,SAFETY RELIEF Index 4810-01-254-8679 VALVE,SOLENOID

National Stock Number:
4820-01-254-8678

Federal Supply Class:
4820

National Item Identification Number:
012548678

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:
10516717-119200US ARMY ARDEC RDECOM
559T1-1M-191816CIRCOR AEROSPACE, INC.


Techincal Specification:
STYLE DESIGNATORSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
VALVE OPERATION METHODAUTOMATIC
MATERIALSTEEL COMP 316 BODY
STEEL COMP 316 FLOW CONTROL DEVICE
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
ACETYLENE 2ND RESPONSE
AMMONIA, GASEOUS 3RD RESPONSE
REFRIGERANT 12 4TH RESPONSE
HYDROGEN 5TH RESPONSE
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP250.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
OPENING PRESSURE SETTING1.6 POUNDS PER SQUARE INCH
SPECIAL FEATURESPOP-OFF TYPE


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