4820-01-219-6521 VALVE,SAFETY RELIEF Index 4820-01-219-6523 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-219-6522

Federal Supply Class:
4820

National Item Identification Number:
012196522

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:
D52VV-045P967DANTE VALVE COMPANY
D52VV-0465079DANCO VALVE COMPANY
R10BB1B10934889HUNT VALVE COMPANY INC


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+33.0 TO 40.0 POUNDS PER SQUARE INCH
BONNET TYPEINSIDE SCREW
BONNET ATTACHMENT METHODBOLTED
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLESOCKET WITH BRAZING RING ALL ENDS
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEDISK
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A276 ASSN STD SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIALCOPPER ALLOY BODY
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY SEAT
MATERIALSTEEL CORROSION RESISTING STEM
MAXIMUM OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
MEDIA FOR WHICH DESIGNEDGAS, INERT 2ND RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES ALL ENDS
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC


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