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U.S. Department of Energy
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VALVES FOR CONTROLLING GAS STREAMS FLOWING AT VERY LOW FLOW RATES

Patent ·
OSTI ID:4842794

A gas valve for very low flow rates is designed which may be used to supply gas to ion sources or to measure the pumping rate of a molecular vacuum pump. The valve contains a needle-seat member which is adjustable by thermal expansion. Graphs are presented showing the effects of diametrical play, pressure, and adjustment parameters on the flow rate. (D.L.C.)

Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-15-029347
OSTI ID:
4842794
Report Number(s):
CA 620840
Country of Publication:
Canada
Language:
English

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