4820-01-134-2802 VALVE,CHECK Index 4820-01-134-2804 VALVE,LIFT-CHECK

National Stock Number:
4820-01-134-2803

Federal Supply Class:
4820

National Item Identification Number:
011342803

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:
10347159A486GNIMIKKEISTOKESKUS NCB FINLAND
2028501343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20285R51M01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20285R51M15187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
2028515187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+151.0 TO 180.0 POUNDS PER SQUARE INCH
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEINSIDE SPRING
CONNECTION TYPEFLANGE FIRST END
CONNECTION TYPEUNTHREADED INTERNAL TUBE SECOND END
CONNECTION STYLESTREAMLINED WITH ONE BRAZING RING (TUBE) SECOND END
FLANGE FACE DESIGNPLAIN FIRST END
FLANGE SHAPEROUND FIRST END
FLOW CONTROL DEVICEDISK
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIALCOPPER ALLOY BODY
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY SEAT
MATERIALNICKEL ALLOY STEM
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDGAS, INERT SECOND RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES SECOND END
NOMINAL OUTSIDE DIAMETER3.875 INCHES FIRST END
NOMINAL THICKNESS0.344 INCHES FIRST END
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORANGLE


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