4820-00-152-1256 VALVE,CHECK Index 4140-00-152-1258 FAN,TUBEAXIAL

National Stock Number:
4820-00-152-1257

Federal Supply Class:
4820

National Item Identification Number:
001521257

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:
40020096124TRANSDIGM INC
400200-196124TRANSDIGM INC
702539298748AIR FORCE UNITED STATES DEPARTMENT OF THE DBA TINKER AFB OC ALC DSP
49011053730WESTFIELD HYDRAULICS INC
9400-175201BAHR MACHINE COMPANY INC


Techincal Specification:
DISK LOADING METHODSPRING
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
CONNECTION STYLEFLARED (TUBE) ALL ENDS
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICEBALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS440C,CONDA FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIALSTEEL COMP 440C FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING BODY
MATERIALSTEEL CORROSION RESISTING SEAT
MAXIMUM OPERATING PRESSURE100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
PROPRIETARY CHARACTERISTICSPACS
MAXIMUM OPERATING TEMP700.0 DEG FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
NOMINAL THREAD SIZE0.562 INCHES ALL ENDS
OPENING PRESSURE SETTING35.0 POUNDS PER SQUARE INCH
SEAT ANGLE37.0 DEGREES ALL ENDS
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
THREAD CLASS3A ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORUNF ALL ENDS


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