Anti-surge system for gases and other media
AssigneeDresser Industries, Inc.
InventorsKenneth J. Sprott, George M. Herterick
Life of this patent
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Abstract
A device and method for preventing high pressure surges in fluidic material delivery systems to instruments such as a flowmeter, by the use of restrictors and a pilot operated valve to initially restrict the flow of the fluidic material before allowing total delivery thereof to prevent damage to such meters and other type members.
Claims7
A device for preventing high pressure surges in fluidic material delivery systems to metering and measuring instruments comprising means for flowing the fluidic material to a normally closed pilot operated valve, means for diverting flow therefrom through a restrictor directly to said instruments, means for diverting flow therefrom through a restrictor to the pilot of the pilot valve to produce a time delay in total delivery of the fluidic material to the instruments.
A method for preventing high pressure surges in fluidic material delivery systems to metering and measuring instruments comprising flowing the fluidic material to a normally closed pilot operated valve, diverting flow therefrom through a restrictor directly to said instruments, further diverting flow therefrom through a restrictor to the pilot of the pilot valve to produce a time delay in total delivery of the fluidic material to the instruments.
Dependencies are inferred from the claim text.