Control Valves Archives - Instrumentation Tools

Metal Seated Valves and Soft Seated Valves : Differences

S Bharadwaj ReddyNovember 15, 2018November 15, 2018

Metal Seated Ball Valves Engineered to excel in the most demanding industrial settings where valve deficiencies can endanger safety, plant efficiency and reduce profitability, metal seated ball valves stand out.

Split Range Control Loop

S Bharadwaj ReddyNovember 12, 2018December 11, 2018

Split Range Control Loop is used, where there are several manipulated variables, but a single output variable. The coordination among different manipulated variables is carried out by using Split Range

Electropneumatic Valve Positioner Schematic & Principle

S Bharadwaj ReddyJuly 10, 2018September 14, 2018

Electropneumatic valve Positioner A simple design and concept equals a simple operation of these components: A pneumatic positioner A manifold coupled I/P converter Image Courtesy : Valve Accessories Supply pressure up

Classification of Control Valves

S Bharadwaj ReddyMay 31, 2018November 1, 2018

Classification of Control Valves The control valves are basically classified into two types. Linear and Rotary. The below figure shows in detailed classification of control valves based on Linear &

Applications of Needle Valves

S Bharadwaj ReddyMay 21, 2018May 22, 2018

Needle Valves A needle valve is a type of valve having a small port and a threaded, needle-shaped plunger. It allows precise regulation of flow, although it is generally only capable of relatively low flow rates. Construction and

What is a Shutdown Valve ?

S Bharadwaj ReddyMay 21, 2018December 17, 2018

A shutdown valve (also referred to as SDV or Emergency Shutdown Valve, ESV, ESD, or ESDV) is an actuated valve designed to stop the flow of a hazardous fluid upon

Pneumatic Valves Questions & Answers

S Bharadwaj ReddyMay 5, 2018November 18, 2018

Please see the below mentioned Pneumatic valves questions for your preparation. Pneumatic Valves Questions & Answers 1. What is the function of a pneumatic valve? Answer : Function of pneumatic

Types of Control Valves Noise

S Bharadwaj ReddyMarch 30, 2018November 12, 2018

Noise is the result of energy dissipation in the control valve. The major sources of control valve noise are Mechanical vibration of components Hydrodynamic noise Aerodynamic noise Mechanical Noise Vibration

Control Valves Chemical attack Problems

S Bharadwaj ReddyMarch 30, 2018

Corrosive chemicals may attack the metal components of control valves if those components are not carefully selected for the proper service. A close-up photograph of a chemically-pitted valve plug shows

Control Valve Noise Problems

S Bharadwaj ReddyMarch 11, 2018August 29, 2018

A troublesome phenomenon in severe services is the audible noise produced by turbulence as the fluid moves through a control valve. Noise output is worse for gas services experiencing sonic

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Category : Control Valves