4820-01-299-0411 VALVE,SAFETY RELIEF Index 4820-01-299-0413 VALVE,BALL

National Stock Number:
4820-01-299-0412

Federal Supply Class:
4820

National Item Identification Number:
012990412

Description:
VALVE,SHUTTLE

Detail:
A VALVE HAVING ONE OUTLET AND TWO INLETS THAT ARE USUALLY OPPOSITE EACH OTHER. IT HAS A FLUID PRESSURE OPERATED PISTONLIKE ITEM, CALLED A SHUTTLE, THAT CONTROLS EITHER INLET. IT IS COMMONLY USED TO PROVIDE AN EMERGENCY PASSAGE FOR FLUID IN AN AIRCRAFT HYDRAULIC OR PNEUMATIC SYSTEM IN CASE OF LOSS OF PRESSURE IN THE NORMAL SERVICE LINES.


Manufacturer Information:
9071-02-0000-50088773GEORGE W. DAHL INC.
9071-02-0000-50090005PUROLATOR FACET INC.
M7188773GEORGE W. DAHL INC.
M7190005PUROLATOR FACET INC.


Techincal Specification:
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
FLOW CONTROL DEVICEDIAPHRAGM
MATERIALALUMINUM STEM
MATERIALALUMINUM BODY
MATERIALRUBBER OVERALL
MAXIMUM OPERATING PRESSURE100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP180.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
MOUNTING FACILITYBRACKET
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS
SPECIAL FEATURES2 INLET PORTS,1 OUTLET PORT
SURFACE TREATMENTANODIZE
THREAD SERIES DESIGNATORNPT ALL ENDS


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