Control Valve Study Material - Instrumentation Tools

How Valve Positioners act as Cascade Control Systems in a Loop?

S Bharadwaj ReddyFebruary 29, 2020March 29, 2020

Explain how all valve positioners essentially act as cascade control systems in a loop, and why valve positioners generally improve control quality as a result. Valve Positioners Furthermore, examine this...

Control Valves Pre-Commissioning Checklist

S Bharadwaj ReddyFebruary 27, 2020March 20, 2020

In this post, we discuss the brief list of control valves pre-commissioning checklist which includes installation, inspection, testing, and taking valve online. Pre-commissioning activities to be taken up during the...

How to Choose a Control Valve?

S Bharadwaj ReddyJanuary 17, 2020January 20, 2020

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

S Bharadwaj ReddyOctober 11, 2019February 29, 2020

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?

S Bharadwaj ReddyOctober 6, 2019November 22, 2019

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

S Bharadwaj ReddyOctober 3, 2019

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

S Bharadwaj ReddyOctober 2, 2019October 3, 2019

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?

S Bharadwaj ReddySeptember 25, 2019December 23, 2019

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

S Bharadwaj ReddyAugust 18, 2019August 19, 2019

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 ?

S Bharadwaj ReddyAugust 16, 2019

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...

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Category : Control Valves