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Areej

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Control Valve

Control Valve Passing Even When Fully Closed: Causes, Symptoms, Troubleshooting and Solutions

Table of ContentsUnderstanding Control Valve Passing and Why It HappensWhat Does It Mean When a Control Valve Is Passing?How a Control Valve Should Close Under Normal ConditionsCommon Symptoms of a Passing Control ValveMajor Causes of Control Valve PassingControl Valve Shutoff Performance by Valve TypeHow...
Instrumentation Calculators

Instrument Range Calculator | Calculate Span, Rangeability, Turndown Ratio & Calibration Range

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Flow Measurement

Ultrasonic Flow Measurement

Introduction There are two types of ultrasonic flow measurement: - Transit time measurement - Doppler effect The fundamental...
Instrumentation

Different methods of Density Measurement

Introduction Density is defined as the mass per unit volume. Specific gravity is a unitless...
Level Measurement

Level measurement using hydrostatic pressure

Introduction The basis of hydrostatic pressure measurement for level is such that the measured pressure...
Instrumentation

Piping of differential pressure and flow transmitters

Introduction In this session we are gonna discuss about how to connect differential pressure &...
Electrical

Difference between Radial networks & Ringed Network Configurations

Introduction Starting from the type of supply, electric power distribution grids or networks can also...
Electrical

What are Auxiliary Current Transformers ?

Auxiliary Current Transformers Many circuit problems can be solved by connecting one current transformer to...
Electrical

What is Instrument Transformers?

Instrument Transformers In heavy currents and high voltage a.c circuits, the measurement can not be...
Level Measurement

Direct level measuring techniques

Introduction There are several methods to measure the level.There are Direct and Indirect methods.example for...
Pressure Measurement

BELLOW TYPE PRESSURE GAUGE

Introduction The bellow type gauges are used for the measurement of absolute pressure. They are...
How to

Calibration of Dp level transmitter at field

Introduction In this session we are gonna discuss about calibration of Dp level transmitter  in...
Control Valve

How to assemble a diaphragm actuator to the control valve?

Introduction The Control Valves consist of the single-seated  Angle Valve and  Pneumatic Actuator.The process medium flows...
Control Valve

Difference between Rotary-Shaft Valves & Sliding-Stem control Valves

Sliding-Stem Valves  Sliding-stem valves include globe valves, angle valves, and axial flow valves. Of all the control valve...
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Control Valve

Control Valve Passing Even When Fully Closed: Causes, Symptoms, Troubleshooting and Solutions

Table of ContentsUnderstanding Control Valve Passing and Why It HappensWhat Does It Mean When...
Instrumentation Calculators

Instrument Range Calculator | Calculate Span, Rangeability, Turndown Ratio & Calibration Range

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Communication

Profibus PA Communication Problems: Causes, Symptoms and Troubleshooting Guide

Table of ContentsOverview of Profibus PA Communication Challenges What is Profibus PA Communication?Definition of Profibus...
Engineering

FAT vs SAT vs SIT: Three Critical Tests That Determine Whether Your Plant Is Truly Ready for Startup

Table of ContentsIntroductionPurpose of Factory Acceptance TestingFactory Acceptance Test ObjectivesFactory Acceptance Test ObjectivesPLC FAT...