Interested to Buy Any Domain ? << Click Here >> for more details...
I have a problem with a valve (air to close).
When it is fully closed and try to open 1% it doesn't responce till 3% open suddenly more than 3% then back to 3%.
I tried to tune positioner then removed it, the problem still exist.
Any idea
- 3 Answers
- 3720 Views
- I also Faced
- E-Mail Answers
Answer Posted / praveen kumar
first decoupled the actuator then ensure and mark on the stem of full opening and closing, then couple the actuator stem and plug on fully 100 % open of marking position. finally to ensure zero passing test.just close the control valve and fil the water on bonnet inlet.same passing tht u feel means place the nut or iron piece something inb/w the coupling.then ensure again on zero passing test.if again feel the passing means pls to do lapping on seating...then take an trail.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what is isloted barrier how it works and what are the main purpose.how it make safe area.
please someone tell me what is function of vibration sencer and how many types and how to control viberation.please. my id is jimmykhan077@gmail.com
how to tune siemens sipart electro pneumatic positioner..plz tel me..
What is the use of control cable?
what is The specifications for oriface instalation
why I need valve guard and whats different between guard and positioner ??
Why upper weighing limit of electronics balance is 90% of the total weighing capacity?
Can anybody tell me which type of question are asked in the interview for the FORMULATION(Pharma) as a instrumentation engineer, & question in building managment system.
what is the calibration procedure for magnetic flow meter @ onsite
describe flow nozzel principle?
How to regulate the flow of Air in 4" line, with max flow of 330 nm3/hr and Pressure of 0.5 bar? please suggest the type of instrument required.
WHY THE DEGREE OF VALVE PLUG AND VALVE SEAT IS SLIGTLY DIFFERENT I CONTROL VALVE TRIM DESIGN
hye SAM acn u send your e mail id, so that i can solve my query through e mail?
In Safe Guarding test what means by "Failed to Danger" ?
What is the minimum rating availalbe for weld neck orifice in market?
