Flow Control Valves

Рет қаралды 161,018

Күн бұрын

In this lesson we'll introduce and discuss the flow control valve. We examine the schematic, the internal structure, the operational characteristics, and purpose of several different configurations of flow control valves including fixed, variable, variable with check valve bypass, non pressure compensated vs. pressure compensated, and temperature compensated. This is essential material for later discussions about flow control methods.
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Пікірлер: 46

@GopiKrishna-sm6pe Ай бұрын

Very nicely explained. Thank you so much...!

@Scum_92 6 жыл бұрын

I love the juggalo comparison. Fantastic.

@CadenceTemple 5 жыл бұрын

I respect you, sir. I appreciate these videos immensely. As a hard working and inventive entrepreneur, I must say, you have created the path of least resistance to an extremely practical education, on this, and apparently other subjects for so many, and invariably many more to come. I am grateful to you, and regard you as a champion in mind, spirit and action. With that said, I'm sorry someone has apparently given you the absolute worst impression of Juggalos. Hell, maybe even several someones. However, the acts (there are many beyond ICP) associated with this fan-base are the sole guides responsible for countless people having survived extreme emotional stress and murderous or suicidal thoughts. These artists are heroic and brave in ways only ignorance can dismiss, and that is basically the whole point. I have nothing but love for you, and shall continue to subscribe and cherish these lectures. Thank you for all you do

@satishp351 5 жыл бұрын

I saw almost all hydraulic videos in this channel , they are good and useful. Also make a video on hydraulic fittings.

@WizzyFilms 8 жыл бұрын

Great video! loved the detailed info.

@Bikemad24 5 жыл бұрын

You are amazing, iv learned sooo much. Thank you thank you thank you

@baimo7635 8 жыл бұрын

Great, thanks a lot.

@imranmaqsood7598 6 жыл бұрын

Great job sir

@praveenkumarbalaji8397 8 жыл бұрын

good work. thanks a lot

@M.Begley 4 жыл бұрын

Great video thank you 🙏 very much ❤️

@wadebennett8645 3 жыл бұрын

I just found you today!!! i have needed these videos for so long Much appreciated

@bigbadtech 3 жыл бұрын

Very nice! Glad you’re making use this material, tell your friends!

@paulocambuta3 Жыл бұрын

Very good lesson indeed.

@ahmedalhady3838 8 жыл бұрын

that is nice!

@SampaioRoan 3 жыл бұрын

Awesome Content

@Zuhalter87 10 ай бұрын

I fucking died during the juggalo reference 😂

@braincrackz 7 жыл бұрын

hello sir, i really love your lesson. i dont know how to say it right. i hope you can include load cells including calibration.thank you and more power

@godfreymuchuwa7446 Жыл бұрын

Thank you sir for your lessons, I'm upgraded through your lectures

@bharatsinhzala1034 4 жыл бұрын

good explanation

@Mech.Masters 6 жыл бұрын

How does pressure drop reduces flow rate ?

@y.s8916 3 жыл бұрын

How are you controlling the output pressure? By varying the valve opening?

@rashedalam4294 Жыл бұрын

Thanks sir.

@mannyfernandez7028 5 жыл бұрын

very informative . Reducing flow by a valve is cheap and efficient , what if i reduce the speed of a motor by a vfd will i get the same resulting pressure ? thanks in advance.

@bigbadtech 5 жыл бұрын

Remember that pressure is a load induced phenomenon. As long as the load induced pressure is inside the range of the pump at the reduced rotational speed it should work.

@yirgamelesew3997 2 жыл бұрын

VEry nice

@John-dp3ln 8 жыл бұрын

Shouldn't the flow control be on the discharge side of the cylinder? Is either way acceptable? What are the advantages of each configuration?

@bigbadtech 8 жыл бұрын

+John Griffin Check out this lecture: kzfaq.info/get/bejne/jKykhbFy2pnDp5s.html it explains several common flow control methods

@ahmeddahab8907 5 жыл бұрын

Hi Sir I want to ask a question, How the flow rate across the flow control valve increases by increasing the pressure difference across the valve, however when the pressure increases upstream the relief valve opens more and more fluid goes through ? the logic say when the pressure difference increase , less flow across the valve. Am i right or there is a false understanding in any part ?

@soggybottomboys2792 5 жыл бұрын

kzfaq.info/get/bejne/nb2kktGcsLHcdXk.html this might help you

@JohnSendrey 7 ай бұрын

Is the flowrate (Q) across a flow control valve proportional to the pressure difference (ΔP) across the valve or is the flowrate (Q) proportional to the square root of the pressure difference (√ΔP)? If instead it is a linear relationship, how do achieve this if in general, flowrate (Q) is proportional to square root of pressure difference (√ΔP).

@shamimahmed9028 7 жыл бұрын

Sir,It would have been much better if you mention the key characteristics or important informations in written form in the videos,its tough to catch all the informations you says....Btw the video is very helpful,thanks.

@bigbadtech 7 жыл бұрын

Agreed. This is one of my earlier videos and I've learned to include a better objectives summary. Additionally I've started producing free study guides. Check out some of the new ones for examples. Glad you're making use of this material!

@fahdhatem7535 7 жыл бұрын

I don`t understand , the positive displacement pump delivers a constant discharge say 2 gpm ,and after the flow control valve it becomes say 1 gpm ,where does the other gallon go ?? and many thanks for the video

@bigbadtech 7 жыл бұрын

The excess is diverted to tank through the pressure relief valve.

@Mech.Masters 6 жыл бұрын

Normally flow control is achieved by reducing the cross section through which the oil is flowing. But continuity equation states that product of Area x velocity is constant through out the tube. So when area is reduced, velocity increases and flow should remain the same. Then how does reducing the cross section helps us in flow control?

@bigbadtech 6 жыл бұрын

There is not continuity. A relief path exists. Any flow not traveling through the flow control valve is bypassed to tank. That's really the fundamental takeaway about restriction style flow control valves. Also understand continuity assumes laminar flow. In reality you cannot expect to force 500gpm through a 1/4" diameter tube without it getting a little turbulent.

@Mech.Masters 6 жыл бұрын

Got it sir.

@briank3799 2 жыл бұрын

Sooner or later thoes juggalos are going to see your video of you down talking them, and they will throw you in hell's pit!

@Naveenkumar-og7bw 6 жыл бұрын

I have one question how you decided for 500psi input output will be 300psi

@bigbadtech 6 жыл бұрын

In this application we're just assuming the load induced pressure will be 300psi.

@Naveenkumar-og7bw 6 жыл бұрын

Thanks for quick reply.please can you tell how to design output pressure.this will help me a lot

@bigbadtech 6 жыл бұрын

Output pressure is dependent upon: 1) applied load 2) actuator dimensions Check out the "Pascal's Law" lecture at: kzfaq.info/get/bejne/j7Sfg9Zq0K6bcaM.html

@y.s8916 3 жыл бұрын

Suppose I have a control valve whose upstream pressure is fixed. Now if I open the valve, flow increases, you restriction will decrease so pressure downstream will increase. Overall pressure drop will decrease. But how is the flow increasing despite of pressure drop decreasing.

@bigbadtech 3 жыл бұрын

Downstream pressure is a load induced phenomenon.