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[ pdf ] Control Valves

Control Valves Download
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Topic under  Control Valve
Source: nptel.iitm.ac.in 
File size: 164.36 KB
File type: pdf
Last download on: Thu Jan 11, 2018 03:47:08 PM
Short Desciption:
[ Ideal Characteristics ~ Effective Characteristics ]

Summary:
objectives: Explain the basic principle of operation of a pneumatically actuated control valve; Distinguish between air-to-open and air-to-close valves; Explain the constructions and relative advantages and disadvantages of single- seated and double-seated valves; Name three types of control valves and sketch their ideal flow characteristics; Sketch the shapes of the plugs for three different types of control valves; Define the term rangeability; Explain the different between ideal and effective characteristics; Explain the advantage of using equal percentage valve over using linear control valve; contents: [ Ideal Characteristics ~ Effective Characteristics ]
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    Posted by ram
    Thu May 05, 2011 06:47:31 PM

    good

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