Problem on Tachogenerator
A tachogenerator is a small DC generator designed to output a voltage directly proportional to the speed of a rotating shaft. These instruments are used to generate an analog electrical...
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Category : Control Valves
Get the Control Valve Study Material & training on all types of valves used in industries which include ball, butterfly, globe, gate, Diaphragm, etc.
How to Choose a Control Valve?
When choosing a control valve for a process, there are many things that must be considered, including the valve’s flow characteristic, its size, noise, the potential for cavitation or flashing...
Basic Parts of Control Valves
A valve is a mechanical device that controls the flow of fluid and pressure within a system or process. A valve controls system or process fluid flow and pressure by...
What is Travel Stop in Control Valve?
A travel stop in the control valve is used as a mechanical limiter for stem travel. In fact, these travel stops are used to limit the stem travel at certain...
Face to Face Dimension of Control Valve
Typically the face to face dimension requirement of the control valve is specified in the control valve specification. It defines the standards and codes to be used to standardize the...
Butterfly Valves – Concentric, Double-offset, and Triple-offset
The butterfly valve is a quarter-turn valve that can be used as an on-off valve or throttling valve. There are two types of butterfly valve, a concentric and an eccentric...
How-to do Control Valve Calibration?
Control Valves are meant to control the process parameters namely Pressure, Flow, Level and Temperature. Control Valve is the final control element in any closed-loop control. Based on their application...
Difference between RTJ and T&G Flange Facings
I searched many sources to know the difference between Tongue and Groove Flange and RTJ flange, both looked same as per construction. RTJ and T&G Flange Mostly (not always) we go...
When to choose Full Bore Valve or Reduced Bore Valve ?
A brief explanation as this article is more focused on the section of Full or Reduced bore type of valves. Full bore Valve :- The I.D of the Valve is...
Difference between PCV and PRV
PCV – It stands for Pressure Control Valve PRV – It stands for Pressure Relief Valve In one line :- The difference is the Liquid stays in System after PCV...