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Different Types of Control Valve

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  PI Home Assignment – Blog   Topic: Different Types of Control Valve   Ø What is control valve? A control valve is a control device used to manage and direct the flow of fluids by varying the size of the flow passage. It gives the direct control of flow, temperature, pressure or liquid level Control valves regulate the flow of a liquid or gas by opening or closing internal passages. The control valves gives the respond to instructions from the controller and then adjust the internal openings accordingly. It varies the rate of flow passing through itself i.e the valve. The valve stem moves, altering the size of the passage and this increases decreases or holds steady the flow. The control valve opening is altered whenever the process parameter being controlled does not equal the value it is meant to be the set point. A control valve consists of three main parts in which each part exist in several types and designs - Valve’s actuator , Valve’s positioner an...
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Inheritance in C++

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                         Inheritance In C++       What is Inheritance in C++? The capability of a class to derive properties and characteristics from another class is called Inheritance. Inheritance is one of the most important feature of Object Oriented Programming. Ø Sub Class: The class that inherits properties from another class is called Sub class or Derived Class. Ø Super Class: The class whose properties are inherited by sub class is called Base Class or Super class.       Inheritance Example Suppose there are 3 sections in the 12th grade of your school: A, B, and C. The functions that we need to perform in each class are taking the attendance, distributing newspapers to students who subscribed for it, and giving them their final grades.                               ...
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