4820-00-959-7298 VALVE,SAFETY RELIEF Index 4820-00-959-7300 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-959-7299

Federal Supply Class:
4820

National Item Identification Number:
009597299

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:
174A79227WATTS REGULATOR CO
174A 2IN30PSI79227WATTS REGULATOR CO


Techincal Specification:
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODBOLTED
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
DISK LOADING METHODSPRING
FEATURES PROVIDEDVALVE STEM LOCK SHIELD AND BONNET PACKING
FLOW CONTROL DEVICEDISK
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY B5/D FED SPEC 1ST MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY B5/D FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY B5/D FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALCOPPER ALLOY STEM
MATERIALCOPPER ALLOY 836 OR RUBBER SILICONE CLASS Q FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY 836 BODY
MATERIALCOPPER ALLOY 836 SEAT
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE160.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM 1ST RESPONSE
MEDIA FOR WHICH DESIGNEDWATER, FRESH 2ND RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES 1ST END
NOMINAL THREAD SIZE2.000 INCHES ALL ENDS
OPENING PRESSURE SETTING30.0 POUNDS PER SQUARE INCH
SPECIAL FEATURESW/DIAPHRAGM SEAL OF BONNET CAVITY
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
VALVE OPERATION METHODAUTOMATIC OR MANUAL


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