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   How should valve size and type be selected?

   • Ideally, valve size and type should be selected to provide flow control over the range of opening of the valve plug. Inherent in the design of certain valves is a change in flow rate during opening. Valves with characterized plugs can be selected to alter the flow or gain of the valve.

   How to Select the Right Valve for Your Application - GlobalSpec

   insights.globalspec.com/article/4737/how-to-select-the-right-valve-for-your-application

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   What information should be used for control valve sizing?

   • To ensure accuracy, use the following information for control valve sizing: - If a set of loop tuning parameters only works at one end of the control range and not the other, the valve's flow characteristic is most likely the wrong one. - If a system has a lot of pipes, use an equal percentage valve.

   Control Valve Sizing 101 | Rules of Thumb | Valin

   www.valin.com/resources/articles/control-valve-sizing-101-rules-thumb

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   What is valve sizing?

   • Valve sizing is the process of ensuring a valve is appropriately matched to its intended application, guaranteeing efficient and reliable performance. It involves calculating and selecting the correct valve size to handle a system's specific flow rates, pressures, and fluid characteristics.

   Introduction to Valve Sizing: A Step-by-Step Guide

   control.com/industry-articles/introduction-to-valve-sizing-a-step-by-step-guide/

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   How should a control valve sizing and selection process be performed?

   • A computerized analysis of the installed characteristics should be part of the control valve sizing and selection process. Sizing actuators for on-off service is fairly straightforward, requiring only that an actuator be selected with a torque output slightly higher than the seating and unseating torque of the valve.

   Control Valve Sizing 101 | Rules of Thumb | Valin

   www.valin.com/resources/articles/control-valve-sizing-101-rules-thumb

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   How to choose a control valve?

   • Choose a valve that will pass the normal flow when about 60-70% open. Size control valves to absorb about 1/3rd of the total system pressure drop. Control valves should not be less than half the pipe size. Normally the valves exclusively envisaged for shut-off service shall be line size. Alternatively, they could be sized as control valves.

   Control Valve Basics: Sizing and Selection - CED Engineering

   www.cedengineering.com/userfiles/Control Valves Basics - Sizing & Selection.pdf

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   How big should a control valve be?

   • The control valve's size should be selected so that it will operate somewhere between 60 and 80% open at the maximum required flow rate and whenever possible, not much less than 20% open at the minimum required flow rate.

   Control Valve Sizing 101 | Rules of Thumb | Valin

   www.valin.com/resources/articles/control-valve-sizing-101-rules-thumb

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2. Videos

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     3 Tips to Select and Size a Control Valve | Valve Selection

     May 23, 2018

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     6:22

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     How to Size a Control Valve for Liquid Flow

     Feb 14, 2019

     35.9K Views

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     16:38

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     Easy Method for Valve Sizing And Selection for Hydronic Flow Optimization

     Aug 10, 2021

     716 Views

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3. www.emerson.com › documents › automationValve Sizing Calculations (Traditional Method) - Emerson

   www.emerson.com › documents › automation

   Selecting the correct valve size for a given application requires a knowledge of process conditions that the valve will actually see in service. The technique for using this information to size the valve is based upon a combination of theory and experimentation. Sizing for Liquid Service.

   • File Size: 1MB

   • Page Count: 21

4. control.com › industry-articles › introduction-toIntroduction to Valve Sizing: A Step-by-Step Guide

   control.com › industry-articles › introduction-to

   • Cached

   Aug 14, 2024 · Valve sizing is the process of ensuring a valve is appropriately matched to its intended application, guaranteeing efficient and reliable performance. It involves calculating and selecting the correct valve size to handle a system's specific flow rates, pressures, and fluid characteristics.

5. www.valin.com › resources › articlesControl Valve Sizing 101 | Rules of Thumb | Valin

   www.valin.com › resources › articles

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   The control valve's size should be selected so that it will operate somewhere between 60 and 80% open at the maximum required flow rate and whenever possible, not much less than 20% open at the minimum required flow rate.

6. blog.isa.org › basic-guidelines-industrial-controlBasic Guidelines for Control Valve Selection and Sizing

   blog.isa.org › basic-guidelines-industrial-control

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   There are several aspects of sizing/selecting a control valve that must be addressed: Determine what the valve is supposed to do. Is this valve used for tight control or is ‘loose’ control acceptable.

   • Author: Greg Mcmillan

7. www.cedengineering.com › userfiles › Control ValvesControl Valve Basics: Sizing and Selection - CED Engineering

   www.cedengineering.com › userfiles › Control Valves

   control valve is a power operated device capable of modulating flow at varying degrees between minimal flow and full capacity in response to a signal from the controlling system. Control valves may be broadly classified by their function as “on-off” type or “flow regulating” type.

   • File Size: 679KB

   • Page Count: 64

8. www.emerson.com › en-us › automationControl Valves Sizing | Emerson US

   www.emerson.com › en-us › automation

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   How to Size a Control Valve for Compressible Fluid. Learn the step-by-step process for sizing control valves for compressible fluid using the ISA and IEC’s recommended procedure. Webinar: Control Valve Sizing and Selection - Fisher Technology Quick Talk. This webinar focuses on control valve sizing and selection.

9. insights.globalspec.com › article › 4737How to Select the Right Valve for Your Application - GlobalSpec

   insights.globalspec.com › article › 4737

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   Apr 13, 2017 · The valve flow coefficient (Cv), or valve characteristic, is used to select the proper valve size while maintaining stable flow. The simple equation to calculate Cv is: Cv = (Flow) x m (Specific gravity of the media at flowing temperature/pressure drop)1/2