Assembly for start-up testing fluid flow control devices at various pressures and temperatures
AssigneeFisher Controls International LLC
InventorYan Qiu
Life of this patent
Estimating the term…
Abstract
An assembly is provided for performing start-up testing on a fluid flow control device. The assembly includes a retainer adapted to be disposed in a valve body of the fluid flow control device, and a sealing assembly coupled to a portion of the retainer and adapted to be disposed adjacent a valve seat of the fluid flow control device. The sealing assembly includes one or more sealing elements configured to provide a seal during start-up testing at a service temperature of between approximately −325 degrees Fahrenheit and approximately 1250 degrees Fahrenheit.
Claims25
An assembly for performing start-up testing on a fluid flow control device having a valve body defining an inlet, an outlet, and a fluid flow path extending between the inlet and the outlet, and valve seat disposed within the valve body and defining an orifice through which the fluid flow path passes, the assembly comprising:
- a retainer adapted to be disposed in the valve body;
- and
- a sealing assembly coupled to a portion of the retainer and adapted to be disposed adjacent the valve seat, the sealing assembly comprising one or more sealing elements configured to provide a seal during start-up testing at any service temperature of between approximately −325 degrees Fahrenheit and approximately 1250 degrees Fahrenheit.
A fluid flow control device, comprising:
- a valve body defining an inlet, an outlet, and a fluid flow path extending between the inlet and the outlet;
- a valve seat disposed within the valve body and defining an orifice through which the fluid flow path passes;
- and
- an assembly configured to be removably coupled to the fluid flow control device for performing start-up testing on the fluid flow control device, the assembly comprising:
- a retainer adapted to be disposed in the valve body;
- and
- a sealing assembly coupled to a portion of the retainer and adapted to be disposed adjacent the valve seat, the sealing assembly comprising one or more sealing elements configured to provide a seal during start-up testing at any service temperature of between approximately −325 degrees Fahrenheit and approximately 1250 degrees Fahrenheit.
A method of start-up testing a fluid flow control device having a valve body defining an inlet, an outlet, and a fluid flow path extending between the inlet and the outlet, and a valve seat disposed within the valve body and defining an orifice through which the fluid flow path passes, the method comprising:
- coupling an assembly to the fluid flow control device, the assembly comprising a retainer coupled to a portion of the valve body and a sealing assembly coupled to a portion of the retainer, the sealing assembly comprising one or more sealing elements;
- performing, when the assembly is coupled to the fluid flow control device, a first portion of the start-up testing at a service temperature of between approximately 0 degrees Fahrenheit and approximately 200 degrees Fahrenheit;
- performing, when the assembly is coupled to the fluid flow control device, a second portion of the start-up testing at a service temperature of one of (i) between approximately 450 degrees Fahrenheit and approximately 1250 degrees Fahrenheit and (ii) between −325 degrees Fahrenheit and approximately −100 degrees Fahrenheit, the second portion being performed subsequent to the first portion;
- and then removing the assembly from the fluid flow control device.
Dependencies are inferred from the claim text.