4820-01-257-8662 VALVE,SAFETY RELIEF Index 4820-01-257-8664 VALVE,PLUG

National Stock Number:
4820-01-257-8663

Federal Supply Class:
4820

National Item Identification Number:
012578663

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:
R10AH2H213 AND D4991634889HUNT VALVE COMPANY INC
R10AH2H213 AND D50820-1-13-BM111859HUNT VALVE COMPANY, INC.
R10AH2H213 AND D50820-1-13-BM134889HUNT VALVE COMPANY INC


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+72.0 TO 88.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER3.875 INCHES ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.625 INCHES ALL ENDS
BOLT HOLE QUANTITY4 ALL ENDS
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEINSIDE SCREW
CONNECTION TYPEFLANGE ALL ENDS
DISK LOADING METHODSPRING
FURNISHED ITEMS AND QUANTITY1 LEVER
FIRST CONNECTION FACE TO CENTERLINE DISTANCE4.750 INCHES
FLANGE FACE DESIGNPLAIN ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICEDISK
OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A276 ASSN STD SINGLE MATERIAL RESPONSE SEAT
MATERIALNICKEL ALLOY SEAT
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER5.000 INCHES ALL ENDS
NOMINAL THICKNESS0.437 INCHES ALL ENDS
SECOND CONNECTION FACE TO CENTERLINE DISTANCE4.750 INCHES
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE1.500 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS


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