Interested to Buy Any Domain ? << Click Here >> for more details...
what is cavitation in control valve?
& how we can avoid it?
- 1 Answers
- 5266 Views
- Forbes Marshall, Reliance, I also Faced
- E-Mail Answers
Answer Posted / rajesh.
When a fluid passes a valve the fluid velocity increases. If the speed through the valve is high enough, the pressure in the liquid may drop to a level where the fluid may start bubble or flash. The pressure recovers sufficiently and the bubbles collapse upon themselves.
This situation is extremely destructive and may wear out the trim and body parts of the valve in short time which called Cavitation.
With an increasing fluid temperature the possibility for cavitation increases.
Cavitation can be avoided by using more than one control valve or more convenient - a multistage control valve.
| Is This Answer Correct ? | 19 Yes | 1 No |
Post New Answer View All Answers
the whole paper was based on Transducers..questions like define repeatability, error,accuracy,precision..den there were many q. on the conversion of Pa to mmHg and other units.. also..der wer few Q. on some level sensors(with diagram)
How can we test a bently nevda 3500/42M accelerometer monitor card by simulating it with test equipment?. what king od of signal (milli volts or volts or or resistance ) we should feed in the terminals of the card?
How is automatic reference junction compensation carried out in temperature recorders?
In my company plc based winders are operated. one day there was a data transmission failure alarm shown on pc. as per sir instruction we have reset master plc but winders were not triped and alarm gone. so what master plc do?
what is function of SCADA , and how is it work, explain with difination
Regarding , there is an air cooler which control the fans(50% of AV FANS) by temperature in outlet , and the louver of Air cooler is controlled by HIC from control system , So if on Air cooler we will consider 2 individual I/P converter or positioner?
What is Droop? What is Step/Gradient Limiter in Turbine Governor control?
can we create an interrupt in plc through scada?
how do u calibrate the vacuum transmitter if it shows more reading
what is performance test.need defination
What is the right procedure for adjusting the gap voltage of bently nevada vibration sensor?
why is an oxygen sensor used in a boiler stack
If i have 4 Allen Bradely make RS logix 5000 PLC and for viewing that we are using 4 RS view SCADA for 4 different packages. Now, I will want to view two packages on only one SCADA. Then how i will do it?
How to calibrate H2s Dectector
Give an example where you had aproblem on the job, and tell me how you solved the problem. and the finalvoutcome.
