Answer / santosh

Control Valve is the one Equipment, Which is Manege the Quantity of Flow, Pressure, Temperature as per require set point from its basic Source.

Answer / pankaj rathi, bajaj group.

Its a final control element. used to control the physical property of materials.

Answer / carl_ellis

What is a control valve and how does it work?

A control valve is a mechanical device that removes energy
from a hydraulic (liquid, gas, or steam) flow stream.

It works by partially or fully blocking the flow stream.

Carl Ellis
Measure First

Answer / ayaz

Control valve is final control element in control loop and use for Process variable Temperature ,pressure,flow and level etc 

Answer / faiyaz ahmad

Control valve is final control element and control valve is device which is used to control the flow pressure temperature and liquid level fully and partially.
the working principle of control valve is Force and Balancing Flapper Nozel Air to open and air to close.

suppose in dcs range of a flow transmitter is 10t/hr what is dp for 50% in 2500mmwc

6 Answers   Chevron,

What is difference between “Fault Tolerant” & “Fault avoidance” PLC? Application where these system s are used?

0 Answers  

In vortex flow meter how can measure the frequency of vortex generated by vortex flow meter

4 Answers   Cadila,

how u calibate pr tx without master tx?

2 Answers  

what is flow and flowrate? definate and diffrentiate it? pls post a valid ans thanks in advance

2 Answers   Qatar Gas,

few questions on RS 232,1 question on relationship of impedance and turns ratio, many questions on flowmeters

0 Answers   Monnet,

what is interface level and how it is calibrate?

0 Answers  

What is the difference between PLC and DCS?

3 Answers  

how control valve works?

7 Answers   Qatar Airlines,

what is use of communication wire in multipare cable(oil and gas field), why this communication wire not used in single pair cable?

0 Answers  

without color coding, without nameplate, without multimeter how can you find the type of thermocouple???

1 Answers   Sabic,

2. What is ultrasonic flowmeter?

1 Answers