4820-01-127-3840 VALVE,SAFETY RELIEF Index 4820-01-127-3843 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-127-3841

Federal Supply Class:
4820

National Item Identification Number:
011273841

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:
865201343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
E8652D51SS01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
E8652D51SS15187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP


Techincal Specification:
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE OPERATION METHODAUTOMATIC
MATERIALSTEEL BODY
STEEL COMP 303 FLOW CONTROL DEVICE
STEEL COMP 303 SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A216,GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE BODY
QQ-S-764,TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
QQ-S-764,TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE SEAT
FIRST CONNECTION FACE TO CENTERLINE DISTANCE3.250 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE3.250 INCHES
VALVE SIZE0.500 INCHES
FLOW CONTROL DEVICEDISK
MAXIMUM OPERATING PRESSURE270.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CONNECTION TYPEFLANGE ALL ENDS
FLANGE FACE DESIGNPLAIN ALL ENDS
RENEWABLE SEAT RING TYPETHREADED
BONNET TYPEEXPOSED SPRING
BONNET ATTACHMENT METHODBOLTED
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE5.0 TO 270.0 POUNDS PER SQUARE INCH


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