4820-01-188-1780 VALVE,SAFETY RELIEF Index 4820-01-188-1782 VALVE,BUTTERFLY

National Stock Number:
4820-01-188-1781

Federal Supply Class:
4820

National Item Identification Number:
011881781

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:
R10AF2F20311859HUNT VALVE COMPANY, INC.
R10AF2F20334889HUNT VALVE COMPANY INC


Techincal Specification:
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE OPERATION METHODAUTOMATIC OR
MANUAL
FIRST CONNECTION FACE TO CENTERLINE DISTANCE4.250 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE4.250 INCHES
VALVE SIZE1.000 INCHES
FLOW CONTROL DEVICEDISK
MAXIMUM OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP250.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPEFLANGE ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER4.250 INCHES ALL ENDS
NOMINAL THICKNESS0.438 INCHES ALL ENDS
BOLT HOLE QUANTITY4 ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.562 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER3.125 INCHES ALL ENDS
FLANGE FACE DESIGNPLAIN ALL ENDS
BONNET TYPEINSIDE SCREW
BONNET ATTACHMENT METHODBOLTED
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE10.0 TO 12.0 POUNDS PER SQUARE INCH


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