Kimray's Cage-Guided High Pressure Control Valve is a balanced valve that can be used as a dump valve, pressure regulator, suction controller, recirculation valve, as well as in plunger lift applications.
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The Cage-Guided Control Valve has larger trim sizes (available in 2" thru 10" end connections) for larger valve coefficients (Cv) compared to the Stem-Guided series.
It can be fitted with optional electric actuation or operated with compressed air for zero-emission requirements.
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The process for valve sizing can be confusing. There are numerous variables in oil and gas controls, and an array of options to deal with those variables. In this piece we’ll be covering the three most important factors in selecting a control valve:
The first question you need to ask when valve sizing is “What is my pressure?”
While it sounds obvious to choose high pressure valve for high pressure application, there is another key factor you have to consider: Calculated Cv.
The second question you need to ask when valve sizing is “What is my Cv?”
Cv is the number of gallons of water that will pass through a given flow restriction at a 1 psi differential.
Put simply, you can think of it as the orifice size of a valve.
To calculate your Cv, plug your flow conditions into the Kimray sizing calculator. You can also use this video guide to learn how to use this sizing calculator.
The company is the world’s best Cage guided valve supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.
Now let’s look at two examples of how Cv helps us with sizing control valves.
It may sound counter-intuitive to use a high pressure control valve for low pressure application, so let’s dig a little further…
Kimray low pressure valves and regulators come with 2 simple trim options—full port or reduced port—and might be too big for the small flow rates.
Meanwhile, Kimray 2” stem-guided high pressure control valves come with 9 trim options ranging from ¼” up to 1”. (Our 1” stem-guided valve trim options range from 1/8” – ½”.)
Stem-guided valves have tight Cvs—from .34 to 21. They can handle low flow as well as high pressure drop applications where you have a small Cv requirement.
For larger Cvs and higher pressures, Kimray’s Cage Guided High Pressure Control Valves are full port valves with a Cv range of 28.6 to 1,091.
While our stem-guided valves are available only in 1” and 2” sizes, our cage-guided valves are available in 2" through 10".
We’ve now walked through control valve selection. But what about if you have valves on an existing well and conditions change?
A key benefit of Kimray control valves is their versatility. For example, If you resize your valve with the new conditions and the calculated Cv does not fit the trim on your existing stem-guided valves, you can swap the trim for a different size.
This will keep you from having to change your piping to fit a larger or smaller valve.
What is Valve Cv?
How to Replace Control Valve Trim
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