Answer Posted / sbt, gmm, ypp
YES, ABSOLUTELYU. WE CAN USE CONTROL VALVE W/O POSSITIONER.
BASICALLY POSSITIONER IS USED FOR QUICK OPERATION OF
CONTROL VALVE. FOR AN EXAMPLE: IF CONTROL VALVE OPERATING
RANGE IS 0.6 TO 2.6 KG/CM2, AT THAT TIME POSSIOTIONER IS
USED FOR AMPLIFICATION FOR THE HIGH PRESSURE CONTROL VALVE
EVEN IF INPUT PRESSURE IS 0.2 TO 1.0 KG/CM2.
ANS. GIVEN BY: SBT, GMM, YPP (NFIL STAFF)
Is This Answer Correct ? | 32 Yes | 6 No |
Post New Answer View All Answers
Give Detail information about plc,dcs,and scada system?
what diffrence b/w plc s7200,300,400
ORP sensor working principle?
our kks tagging is crossing more than 12 character please suggest how to take tags in the DCS
What is Alpha & Beta fctors related to Orifice Plate & its relation with flow?
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 function of switch, and how is it work, explain with difination
What is motion balance principle?
I wnat to practice more online type questions .so will you show them me to take a practice test?
Why upper weighing limit of electronics balance is 90% of the total weighing capacity?
WHY THE DEGREE OF VALVE PLUG AND VALVE SEAT IS SLIGTLY DIFFERENT I CONTROL VALVE TRIM DESIGN
What is the use of GMV in turbine?
Can anyone send most commonly asked interview question in Oil & Gas industry
I need control valve ISA hand book. Is there any site to download that big book containing all the pages. Written by Paul Friedmann
how to work static pressure sensore how to work dpt