Calculate the maximum pressure drop that can be allowed to occur across a cont

Calculate the maximum pressure drop that can be allowed to
occur across a control valve, so that we can prevent
cavitation / flashing from occurring. Use the following
formula:

Δ P allow = Km (P1 – PvapourA)

where,
Δ P allow - the maximum allowable differential pressure for
sizing purposes, or terminal pressure drop;
Km- the valve recovery coefficient from the manufacturer’s
catalogue;
P1 - absolute inlet fluid pressure;
PvapourA - absolute fluid vapour pressure at the inlet
temperature;

Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g),
PvapourA = 4 kPa, KM = 0.72

Question Posted / slyabi

0 Answers
2148 Views
I also Faced
E-Mail Answers

No Answer is Posted For this Question
Be the First to Post Answer

Post New Answer

More Instrumentation Interview Questions

what5 does intrinsically safe mean.

2 Answers

what is the basic working principle of I/P and Positioner in any control valve.

12 Answers Essar, Visa Steel,

Name four general (not technical) criteria that would you consider important, when deciding upon a particular control valve?

1 Answers

plz tell me clearly about PID.."when v have to change I value,D value,GAIN??

0 Answers

what is sinking and sourcing....

2 Answers

find the kp ki kd from the transper function G(S)=29.44s+04707/1.5349s2+s

0 Answers

In separator VFD frequently trip with OVER VOLTAGE Fault What is the reason?

4 Answers

detail of mass flow meter pricipal

0 Answers

How a pH sensor & analyzer work at waste water treatment plant, whats the principle & science is beyond this,How pH sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in analyzer

1 Answers

How can we cheak the ENCODER ?

1 Answers

Which language of programing is popular? how can i learn it ?

0 Answers

what is the procedure of belt scale calibration?

0 Answers

For more Instrumentation Interview Questions Click Here