How to get Cv of control valve having following parameter
,i.e inlet pressure 4.5kg/cm2
outlet pressure 1 kg/cm2
specific gravity 0.808
Answer Posted / mohammad iftikhar
firstly u need to convert the following parametrs
1- conver inlet pressure into PSIG, your outlet pressure
2- you need to know what is your temperature max & min
3- you must know your flow rate
4- diffrential pressure
5- nominal pize size
6- sizing for ....mean for which fluid
| Is This Answer Correct ? | 1 Yes | 2 No |
Post New Answer View All Answers
Describe the typical instrumentation used in monitoring the performance of a shell and tube heat exchanger.
In most instances, Inertia processes are quite uncommon. Give an example of a combined Resistance and Capacitance situation.Describe an application, which according to your understanding of the subject matter, comprises of both Resistance and Capacitance effects.
which type inter lock use in petrochemical refinery,and oil & gas?
How do you identify an orifice in the pipeline?
how many types of preheaters are in cement industry & what r they can any body explain?
, Instrument Index, P&ID review, I/O schedule, datasheet, DCS / Analyzers specifications, loop diagrams, hook-up drawings.
Please can anybody help for control valve sizing step by step procedure?
what is the reason while warning lamp is on while the engine is cranking?
what is exact time to study dcs and plc cources
WHAT IS THE DIFF. BETWEEN SKIN TEMPERATURE AND PASSES TEMPERATURE..?
Emergency Shutdown Systems/ Plant Shutdown System.
Explain the difference between mmwc and mmwg?
hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....
what is vibration a part of proceess variable? if vibration is a part variables then how we minimize the actual vibration on machine on load,? vision of instrumentation contrl plz ans me IPGDL interview question
how the arrangement of equipments done in control room