can a control valve works without positioner?why need
tunning of c/v?
- 4 Answers
- 6959 Views
- I also Faced
- E-Mail Answers
Answer Posted / ghanshyam khatri
yes u can use without positioner,potioner is used for quiq
operation not for control cv is control through 0.2 to 1.0
kg/cm2 u can give it directly but u need to adjust bench
set spring pressure is .2 to 1kg.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
A DP transmitter is used to measure the level of an open tank. The drain line of the tank is connected to a control valve, and is configured as, if the level of the tank is 90% the valve should get open 10%. And if the tank level is 10%, the valve should get open 90%. Draw wiring diagram and explain how to configure DP transmitter and control valve using HART communicator. If the span error at output is 1%, what will be the %opening of the control valve at 60% level of the tank?
IS there any effect of vortex in low pressure side of the transmiter after the orific in feed water line? if yes then what is the calculation?
what is span value and zero ? and how set ?
What are de-saturators?
Is it ok, to use non-contact type Radar type LT, on a tank that is half circular from the bottom side? If yes the, isn't the waves gonna bent in other directions?
The Design Calculation of Level Transmitter For Different Structure open & Closed Vessel, Eg. Diff. Level Tx., Capacitance For Continous Operation
Actual using of tube bender to bend 2 opposite 90 deg at correct measurement center to center of tubing.
How to control flow variations in magnetic flow maters..... When i will provide proper earthing?
Why upper weighing limit of electronics balance is 90% of the total weighing capacity?
How will you test a transistor with a multimeter?
Can I calibrate the Electromagnetic Flow Meter on line and How.
whatis range of marcury filled tempereture gague
what is the difference between active & reactive power?
what is the reset offset and control system in instrumentation
how to calibrate electro pneumatic positioner 8013 mil controls ltd ?gsr
