Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

can a control valve works without positioner?why need
tunning of c/v?

Answer Posted / inst engg

YES, BUT IT IS NOT PERMANENT REMOVE THE MAIL LINE (FORM THE
POSITIONER)TO THE CV AND GIVE THE SUPPLY PRESSURE.
TUNNING IS REQUIRED FOR EXACT PERFORMANCE(Eg. YOUR CV HAVING
2% ERROR ,YOUR CONTROLLER IS GIVING 23% CLOSE BUT YOUR CV
WILL CLOSE 25% IT WILL AFFECT THE PROCESS) AND PERFECT
SEATING OF GATE.

Is This Answer Correct ?    1 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Introduce yourself which is not present in your biodata?

2486


Instrumentation symbols interpration, P& ID, Logic diagram analysis, Electrical drawing analysis.

2015


describe flow nozzel principle?

2573


why direct mounted pressure transmitters is always installed with DBB ( double bleed block) valve in process line or top of the tanks ?

2110


What is difference between ESD and PLC please Explain me clearly.

4952


Q- What are the application in which PNP transistor is preferred over NPN ?

3391


Q1]IF THE RANGE FOR FLOW IS -35 TO 125 WHAT WILL BE THE SPAN FOR ABSOLUTE AND FOR NORMAL? Q2]HOW TO CALIBRATE CAPILLARY TYPE LT? Q3]HOW MANY ERROR CALCULATIONS ARE THERE USED IN PROCESS INDUSTRIES? Q4]HOW TO CALIBRATE TEMPERATURE TRANSMITTER? Q5] HOW TO CALIBRATE LEVEL TROLL AND HOW TO CONNECT? Q6]PLEASE TELL ME THE BASIC FOR INSTRUMENTATION WHICH IS APPLIED FOR CALIBRATION AND FOR ALL? PLEASE MAIL THE ANSWER TO honest_yes@yahoo.in

1990


WHAT IS MEANT BY PROJECT MANAGEMENT STRATEGIES IN INSTRUMENTATION?

3625


Explain signal isolator

1223


How to calibrate Magnetic flow Transmitter in Field

1310


for oil & gas industries which zone is normally preferred? why? give its example?

2048


Please can anybody help for control valve sizing step by step procedure?

2192


what is the calibration procedure for magnetic flow meter @ onsite

1703


which type of filter gives the constant phase characteristics?

1964


how to calibrate mass flow meter (Coriolis)? Example calibration range: 0 to 2500 kg/hr line size 3" fluid: Etheline glycol (MEG)

2738