Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / m.v.ramesh
There are yes and no answers of this query.
correct answer is Yes. Most of the answers are Yes but
Explanation is a bit not clear. Yes offcource valve
positioner has lot of usages and advantages in controling
the valve position.
Answer no 8 is some what clear.
Here is the straight right answer.
"Yes we can use a control valve with out positioner when
bench set of the control valve is matching with the
standard bench set of the valves." ie, valve spring range
is 0.2 kg - 1 kg. where the process fluid is clean, and for
the valve sizes below 1 inch usually.
Where these valves need regular preventive maintanence
(lubricating and changing the packings promptly or else
these valse will give erratic positions).
| Is This Answer Correct ? | 15 Yes | 5 No |
Post New Answer View All Answers
what are the selections available in configuring a burnout protection of a controller? thanks
How to do gas analysers calibration in AUTO and Manually by using zero and span gas?
Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer
How we can check the 2 wire proxy switch? & how it is connected to DI MODULE OF PLC?
What are continuances of connecting earthing and shield of branch cables (instrument to Junction box), at the same earthing pot provided on JB? Is it ok, or may produce some problem?
in natural gas indirect water bath heater,how to prevent the problem of backfire from firetube during ignition...becoz of this backfire performance of wbh is going low.
How to calibrate Field bus transmitter? procedure ?
What is hp & mp seperator .& what is its working principle ?
Why MUX JB's are using only Temperature Element in Fundation field bus?
What is 3 element control system
Explain bernoulli’s theorem. State its application.
field bus transmitter calibration procedure tell me
why we use 3 wire rtd direct wiring for temperature measurement instead of temperature transmitter like bearing temperature
sir, i preparing hpcl,ongc,barc,hal exams(instrumentation engg)pls send a placement papers
what is the difference between -24 : +24 & 0:24 and where it use?
