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National Stock Number:
4820-01-299-4011
Federal Supply Class:
4820
National Item Identification Number:
012994011
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.
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Manufacturer Information:
| 18252-F REV A | 72352 | CURTISS-WRIGHT FLOW CONTROL CORPORATION | | 1856M-OL 1/2IN | 72352 | CURTISS-WRIGHT FLOW CONTROL CORPORATION |
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Techincal Specification:
| BONNET ATTACHMENT METHOD | THREADED | | BONNET TYPE | INSIDE SCREW | | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END | | CONNECTION TYPE | THREADED INTERNAL PIPE 2ND END | | CONNECTION STYLE | PLAIN (PIPE) 1ST END | | CONNECTION STYLE | PLAIN,OPTIONAL END(PIPE) 2ND END | | DISK LOADING METHOD | SPRING | | FLOW CONTROL DEVICE | DISK | | MATERIAL | COPPER ALLOY 360 OR COPPER ALLOY 922 BODY | | MATERIAL | COPPER ALLOY 360 FLOW CONTROL DEVICE | | MATERIAL | COPPER ALLOY 360 STEM | | MAXIMUM OPERATING TEMP | 450.0 FAHRENHEIT SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE | | NOMINAL THREAD SIZE | 0.500 INCHES 1ST END | | NOMINAL THREAD SIZE | 0.750 INCHES 2ND END | | OPENING PRESSURE SETTING | 300.0 POUNDS PER SQUARE INCH | | STYLE DESIGNATOR | ANGLE | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | NPT ALL ENDS | | VALVE OPERATION METHOD | AUTOMATIC OR MANUAL |
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