4820-01-255-6618 VALVE,CHECK Index 4820-01-255-6620 VALVE,VENT

National Stock Number:
4820-01-255-6619

Federal Supply Class:
4820

National Item Identification Number:
012556619

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:
527U0095PARTS CENTER
527-30028193HENRY TECHNOLOGIES, INC.
527-300PSI28193HENRY TECHNOLOGIES, INC.


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY OVERALL
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CONNECTION TYPETHREADED EXTERNAL TUBE 1ST END
THREADED EXTERNAL PIPE 2ND END
CONNECTION STYLEFLARED (TUBE) 1ST END
PLAIN (PIPE) 2ND END
SEAT ANGLE37.0 DEGREES 1ST END
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.625 INCHES 1ST END
THREAD SERIES DESIGNATORUNF 1ST END
NPT 2ND END
NOMINAL THREAD SIZE0.875 INCHES 1ST END
0.500 INCHES 2ND END
THREAD CLASS3A 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
RIGHT-HAND 2ND END
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODINTEGRAL
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING300.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDVALVE STEM LOCK SHIELD AND
BONNET PACKING


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