on which principle control valve works?
Answer Posted / k.ravi kumar
Force per unit area in the actuator
| Is This Answer Correct ? | 13 Yes | 9 No |
Post New Answer View All Answers
i want formula for flow control.am doing project in flow control using orifice . i know value of the flow level(Q) . upstream(p1) pressure, orifice diameter(Do) , pipe diameter(Di) and oil viscosity(Vi) how can i calculate downstream pressure
What materials are used in thermo wells?
what is thermo coupler and how it works
dear sir we have insatlled positioner model no.sipart PS2 make Siemens at our control valves . now problem is if we want to increase the response of valve opening speedy /fast. what parameters do we change for positioner ? any idea. please guide us.
Which is your favourite subject & explain any one topic of it.
which processor is used in dcs.
Can anyone send most commonly asked interview question in Oil & Gas industry
a flow transmitter [range-0-400mbar] connected in process line. please explain me how to calibrate the flow transmitter , & how to do static error
Why mmwc unit is used?
you are on site,the plant trips,you are approached by operations,what do you do?
need instrumentation job completed 1 year trainee ship in mnc pesticide company. now in search of job
Can any body tell me about SAP MAINTINANCE MODULE. WHAT IS its function and application. And study material Source about it. I shall be very thankful.
can u plz send me technical questions asked in SCHNEIDER ELECTRICAL technical paper?
how do i tune dearator pr control valve using PID. we set the set point is 0.6kg/cm2 now i want 0.5 to 0.7kg/cm2 limits so what should i give p,i,d values. then pls explain how do set pid values for control valve tuning?
Draw a P& ID showing – orifice flange, plate, dp transmitter, isolation & bypass valves and tubing.