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A New Choice for Solving Control Valve Problems

2/22/2021

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The great performance of management valves is a secret to optimum process control and also to overall plant performance. flow Control valves have issues that are tracked to the inadequacy in the layout, or because of their misapplication. Those problems can be broadly divided into two classes, i.e. design-selection along with operations-maintenance.

Valve replacement has been the conventional approach to fixing valve problems in the first category. This normally results in the valve being insufficient for the specific service, in most cases because of misapplication. The process of valve replacement is also well understood and the solution is effective so long as the root cause of issues is dealt with. However, when the valves are machined in line, there is substantial installation cost associated with engineering, scheduling, cutting and re-welding valves, and also post-weld inspection. This makes the entire price of solving the original valve problem a whole lot more than the total cost of the hardware itself.
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Retrofit is a very good pick for solving pressure valve issues. The retrofit option can be designed specifically to deal with the source of problems. It is a low-risk and also an economic option when correctly applied, particularly in severe service programs and in which large sizes of valves are involved. Retrofit of these valves removed the initial problem of under capability altogether and also the normal lift on these valves is now 50%, providing sufficient capability to respond to transients.


The reliability of retrofit solutions has been demonstrated by their application in several safety-related applications in atomic power plants. Retrofitting is an alternative that has to be taken into account when solving design-selection-related valve issues. They're engineering-intensive and require experience. When correctly implemented, they can eliminate the root cause of problems. Additionally, they create economic sense.
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It is no doubt that a properly employed retrofit solution can achieve many advantages. There will be reduced prices. A number of the components in the installation cost, for example, engineering, cutting welding, pipes, and pressure testing are dramatically reduced or even removed. As a result, the total cost is less than that for a brand new valve. Besides, the risk is also reduced. Since the inner measurements of the human body aren't altered, the danger of the end-user can also be reduced. Moreover, there'll be a reduced downtime. Since the setup doesn't require cutting of the plumbing, re-welding, etc., the turnaround time for installation is much faster.
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