Search Results for: valves
- Electrical
Air compressor basics – types & accessories
What is an air compressor? A compressor is a machine that compresses air or another type of gas from a…
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Control valve basic interview questions
1. What are the steps in selection of valve? – Material to be handled – gas, liquid, power. Material by…
Read More » - Control System
What is a PID control action?
TWhat is a controller and why is it required in a process system?What is a PID controller?What is the need…
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Time delay relays
Introduction The time delay relays are special purpose relays or logic components that have some characteristics of both relays and…
Read More » - Control Valve
Control Valve guiding
Valve guiding is necessary for proper alignment with the seat ring and efficient control of the process fluid. The common…
Read More » - Flow Measurement
What is Cavitation and Flashing?
Cavitation and flashing are two main kinds of noise in flowmeters and in control valves. Cavitation: When the decreased…
Read More » - Automation
DIFFERENCE BETWEEN DCS ,PLC AND SCADA
DIFFERENCE BETWEEN DCS ,PLC AND SCADA SCADA (Supervisory contol and Data Acquisition) is essentially a computer based (usually PC nowadays) system for…
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Control valve Noise – Cage trim
Noise produced in pipelines may be pump-generated (changes in power and pressure. or varying amplitudes of pressure pulsations) or fluid-generated…
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Manifold Gauges or air conditioning Gauges.
What are manifold gauges? A manifold gauge is chamber device that is used to control the flows of pressure…
Read More » - Instrumentation
Introduction to Analog converters
Introduction In this session we are gonna discuss about Analog converters.In instrumentation analog conveters plays a major role in the field…
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