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US 10,234,047 B2Granted
Gas line control system and modular variable pressure controller
AssigneeVRG Controls, LLC
InventorsJames Michael Garvey, Vladimir Rimboym
Life of this patent
Estimating the term…
Abstract
A pneumatically controlled assembly, system, method and device for the regulation of pressure of a gas as it flows in a pressurized line and including at least one loading valve which is set to respond to variations in pressure in conjunction with a pneumatically actuated process control valve so as to effectively regulate and maintain pressure of the gas in the pressurized line.
Claims7
A pneumatic valve pressure controller system comprising:
- a fluid supply line having an inlet end and an outlet end;
- a process control valve fluidly connected to the fluid supply line between the inlet end and the outlet end;
- a supply regulator fluidly coupled to the fluid supply line upstream of the process control valve;
- an actuator operably connected to the process control valve and having a first pressure chamber and a second pressure chamber;
- a sensing diaphragm connected to the fluid supply line for determining a relative pressure in the fluid supply line on the outlet end side of the process control valve;
- a first loading valve fluidly coupled to the first pressure chamber and responsive to the sensing diaphragm;
- and a second loading valve fluidly coupled to the second pressure chamber and responsive to the sensing diaphragm;
- wherein the first loading valve and the second loading valve are normally closed valves and open and close independent of one another in response to the sensing diaphragm to change a position of the actuator and thereby operate the process control valve.
5 more elements
A pneumatic valve pressure controller system comprising:
- a fluid supply line having an inlet end and an outlet end;
- a process control valve fluidly connected to the fluid supply line between the inlet end and the outlet end;
- a supply regulator fluidly coupled to the fluid supply line upstream of the process control valve;
- an actuator operably connected to the process control valve and having a first pressure chamber and a second pressure chamber;
- a sensing diaphragm connected to the fluid supply line for determining a relative pressure in the fluid supply line on the outlet end side of the process control valve;
- a first loading valve fluidly coupled to the first pressure chamber and responsive to the sensing diaphragm;
- a second loading valve fluidly coupled to the second pressure chamber and responsive to the sensing diaphragm;
- wherein the first loading valve and the second loading valve are normally open valves, and each opens and closes in response to the sensing diaphragm to change a position of the actuator and thereby operate the process control valve.
5 more elements
Dependencies are inferred from the claim text.