Interested to Buy Any Domain ? << Click Here >> for more details...
in split range control valve,two valve should be in two
different line and that should have some distance,and we
have only one positioner feed back link.so how we connect
one feed back in two control valves?if you have picture
please forward me.my email id kb.syamkumar@gmail.com
- 2 Answers
- 7811 Views
- I also Faced
- E-Mail Answers
Answer Posted / ansarru
Not only one positioner.we should have positioner for each valve, that is there are 2 positioners.
Normally one valve work with (4-12) ma and another work with (12-20) and by this way,we are ecoordinating two manipulated variable for a single controlled variable, achieving "SPLIT RANGE CONTRL "
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is the difference between PLC and DDC?
What is megering????
What is mean by analytical instrumentation?
Where is wet leg is used?
how to calculate range of level transmitter?
What is the function of solenoid valve in on/off & shutdown valve and why it is not used in control valve normally?
What are the different types of thermistors used in industries? How to the operation of typical thermistor?
What pressure results for a flow transmitter of range 0- 180t/h in the dcs and 0-301mbar in the field using square root extraction. Kindly also suggest formulae for the percentages 0,25,50,75,100?
How to convert milliampares into flow??
Explain the working of an enraf level gauge.
What is the basic difference between Modbus and CAN Open Protocols
Hi Friends i need Electronics&Instrumentation Engg question papers for BARC written test by coming 20th May 2008 pls post ur use full info to kkumarei@gmail.com. Or for suggestions pls give one missed call to 9962122264
1. For Steam drum level signal, why do we compensate with drum pressure signal? 2.For main steam Flow signal is comensated with main steam temperature signal and main steam pressure signal why?
Programmable Logic control.
Positioner usage.
