Interested to Buy Any Domain ? << Click Here >> for more details...
why full bore ball valve is not used in steam applications?
- 1 Answers
- 6255 Views
- I also Faced
- E-Mail Answers
Answer Posted / instru
Rotary valves like Ball, butterfly valves are called as
high recovery valves. High recovery means less pressure drop
ofcourse compare to Globe valves. The biggest problem with
high recovery valves is that they are prone to Cavitation.
In case of Globe valves the path is quite torturous and
hence less prone to cavitation. In case of ball valves flow
is starigh through the ball. Cavitation occurs when pressure
at the vena contract drops below the liquid vapour presure.
In case of ball valves the vena contracta pressure and inlet
pressure have marginal difference ( thats why high
recovery). When inlet pressure and vena contract pressure
are clsoe to each other valve is definetely to cavitate .
Hence Ball valves are not used in applications where
cavitation is likely to occur.
| Is This Answer Correct ? | 7 Yes | 1 No |
Post New Answer View All Answers
can any send me a forbes marshall dtron 316 manual
we want to control pump in let pressure and tank (for exp) our inlet line if water cam and pump will on and when our tank will full pump will off also if our inlet pressure low pump will off even tank not full.this pump i want to uses on our water supply line.
If fire would be inside the plant which fire detector is to detected the fire.
What is megering????
our kks tagging is crossing more than 12 character please suggest how to take tags in the DCS
WHY THE DEGREE OF VALVE PLUG AND VALVE SEAT IS SLIGTLY DIFFERENT I CONTROL VALVE TRIM DESIGN
I have energy meter for educational project having 0.5s class but my friend need 0.2s class meter , which one is good for that purpose and what is the actual difference of that two classes , need very easy example also.??
why we are using digital signals for I/O & how to measure this signals is getting or not ?
Which type of diagphram use in costic line,DM water line,natural gas line,oil line?
What is loop1 and loop2 in MTS LT?
what is function of switch, and how is it work, explain with difination
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.
what is the minimum power (P=VI)to produce a spark?
what is the process for double acting cylinder pneumatic for 32' v/v
how to calculate the total flow in square root
