4820-00-142-1543 VALVE,SAFETY RELIEF Index 4820-00-142-1548 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-142-1547

Federal Supply Class:
4820

National Item Identification Number:
001421547

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:
AA7070D01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
FF2503B01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+276.0 TO 450.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER2.438 INCHES 2ND END
BOLT HOLE NOMINAL DIAMETER0.562 INCHES 1ST END
BOLT HOLE NOMINAL DIAMETER0.562 INCHES 2ND END
BOLT HOLE QUANTITY4 1ST END
BOLT HOLE QUANTITY3 2ND END
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEINSIDE SPRING
BOLT CIRCLE NOMINAL DIAMETER2.875 INCHES 1ST END
CONNECTION TYPEFLANGE 1ST END
CONNECTION TYPEFLANGE 2ND END
DISK LOADING METHODSPRING
FEATURES PROVIDEDVALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE
FIRST CONNECTION FACE TO CENTERLINE DISTANCE3.000 INCHES
FLANGE FACE DESIGNPLAIN 1ST END
FLANGE FACE DESIGNPLAIN 2ND END
FLANGE SHAPEROUND WITH HOLES 1ST END
FLANGE SHAPEROUND WITH HOLES 2ND END
FLOW CONTROL DEVICEDISK
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-15083 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY SEAT
MATERIALNICKEL ALLOY STEM
MATERIALSTEEL UNS J03008 BODY
MAXIMUM OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP650.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDOIL SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER3.562 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER4.000 INCHES 1ST END
NOMINAL THICKNESS0.375 INCHES 2ND END
NOMINAL THICKNESS0.562 INCHES 1ST END
RENEWABLE SEAT RING TYPETHREADED
SECOND CONNECTION FACE TO CENTERLINE DISTANCE3.000 INCHES
VALVE OPERATION METHODAUTOMATIC OR MANUAL
STYLE DESIGNATORANGLE FLANGED ENDS


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