4820-01-156-0521 VALVE,SAFETY RELIEF Index 4820-01-156-0523 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-156-0522

Federal Supply Class:
4820

National Item Identification Number:
011560522

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:
V3D1010999517VACCO INDUSTRIES
V3D10109-0499517VACCO INDUSTRIES


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+240.0/+300.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER2.875 INCHES 2ND END
BOLT HOLE NOMINAL DIAMETER0.400 INCHES 2ND END
BOLT HOLE QUANTITY4 2ND END
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEINSIDE SPRING
CONNECTION TYPEFLANGE 2ND END
CONNECTION TYPETHREADED INTERNAL PIPE 1ST END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 1ST END
FLANGE FACE DESIGNRAISED STRAIGHT 2ND END
FLANGE SHAPEROUND WITH HOLES 2ND END
FLOW CONTROL DEVICEPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 303 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONMS 5643 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIALPLASTIC POLYCHLOROTRIFLUOROETHYLENE SEAT
MATERIALSTEEL COMP 303 BODY
MATERIALSTEEL FLOW CONTROL DEVICE
PROPRIETARY CHARACTERISTICSPACS
NOMINAL OUTSIDE DIAMETER3.500 INCHES 2ND END
NOMINAL THICKNESS0.375 INCHES 2ND END
NOMINAL THREAD SIZE1.500 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER1.875 INCHES 2ND END
RAISED FACE NOMINAL HEIGHT0.446 INCHES 2ND END
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORANGLE
THREAD CLASS2B 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD SERIES DESIGNATORUNF 1ST END


Click here to Register for Free 30-day Trial