Pump Chart Basics Explained - Pump curve HVACR

[@EngineeringMindset]

⚠️ *Found this video super useful?* Buy Paul a coffee to say thanks: ☕ PayPal: www.paypal.me/TheEngineerinMindset

[@TM10E]

Thank you!

[@the_candid_mechanic]

Thanks bro.

[@the_candid_mechanic]

Can't use Pay Pal in India😕😕😕

[@ajiteshsingh7370]

How changing size of impeller work,when the casing size is fixed? Can someone explain

[@ledonc1580]

I will buy Paul a warm lunch and heavy dinner if he will teach me how to prepare presentation like that

[@walelign1356]

Your video was incredibly helpful, thank you! I’d like to propose a slight clarification @2:21 mark. The reason pump manufacturers use meters of water (head) instead of direct pressure is not because pumps can produce different pressures but the same head when different fluids are pumped. In fact, it’s quite the opposite. Pump performance curves feature ‘head’ instead of ‘pressure’ because the maximum head to which water can be pushed is more practically meaningful for customer needs than pressure figures in bars or megapascals. Pumps do not push different fluids to a constant maximum head. For instance, lighter fluids such as petroleum can be pumped to higher heads than heavier fluids like mercury. To illustrate, a pump with a maximum head of 60m (of water) can support a 60-meter column of water, but only a 4.4m column of mercury, given that mercury is approximately 13 times heavier than water. However, the maximum pressure in bars will be the same for both cases. I hope this clarification is helpful!

[@akashrao3786]

I was just thinking the same! I thought my fundamentals grew weak, thanks for clarifying it again here helps a lot!

[@gersonvargas8712]

Excellent video. I'm student of Mechanical Engineering. This video helped me better understand the basics of pumps

[@helloam7443]

Suppose we have give. HeAd How to calculate pressure

[@projectstumblestorms5537]

As a complete novice to the subject matter this was the absolute perfect video. AND I CAN FOLLOW THE EXPLANATION!!!

[@markkidman6115]

This helped me so much to understand stuff at my new job. Out of school it helps with a practical side

[@teoscott1]

No one can explain better than you. Please make a video on how to size compressors for HVAC and how do we do retrofit and what are the advantage and disadvantage. I am definitely donating !!!

[@dr.bernard4648]

Thanks Paul. I did this course in my Electrical Engineering program and I am just understanding Pump Curve..great job.

[@jackchan9529]

Thank you…I’m civil engineer and I’m currently working water industry, I do lot of mechanical works, big pumps water treatment plant…this information very helpful to me.. cheers

[@EngineeringMindset]

See our new video on how to build mechanical versions of electronic circuits? Watch here: kzbin.info/www/bejne/kKecgmqfnZlri8U

[@riskanrizvan1564]

Really great! This short video covers almost all the pump curve concepts I needed for my exams. Thank you so much.

[@zk116]

I would give you thousands of likes if I could. You literally explained the bloody thing soo much better than the walls of text in my lecture notes

[@Junjokar]

I really appreciate all the knowledge you spread around with these. Extremely helpful, thanks!

[@VenkatKrishna1729]

Amazing video guys. Very informative. I have studied these a long time ago, but it was a complete brush up for me. Thank you and keep up the good work.

[@EngineeringMindset]

Glad to hear, thank you

[@pikinskills]

@@EngineeringMindset Sir could u please explain surging stalling and choking using this curve? Its hard and there are no videos about it.

[@seungscho2823]

Your presentation on pumps is very easy to understand and very helpful to apply to the practical cases. Thank you very much.

[@Koh-Wei-Jian]

1:10 is mind blowing. As a fire sprinkler contractor i learned a new concept about understanding the concepts behind pump curve.

[@kj7569]

😂

[@jeffearon41]

This video, presentation material and style ticks so many boxes for me. Cheers.

[@bobsmythe2490]

I am a retired engineer who during my career had to learn about pumps by "the seat of my pants." This video deals with small potato pumps where as I also specified very large high volume, high or low head pumps. These pump videos are great and cover a lot of important issues but I caution much more must be understood mechanically before specifying a pump. In particular are seal/stuffing box design and bearings. As with fans, low volume, high head centrifugal devices, are tough on bearings. Don't just accept the vendor's bearing recommendation. Personally check with the bearing vendor. You may find yourself needing to learn about bearing and the recommended lubrication requirements before making your final pump choice.

[@Johnwick52923]

Very well put!

[@suryaprakashshukla6023]

Hey man you seem an expert on pumps.. Can you provide more informations? Especially on specs we are missing here

[@Dattp51]

Sir, hats of to your experience, need some guidance and information about pumping system for industry,

[@hefeihuayunmachinerymanufa6773]

Great insights, sincerely invite you to learn about our Huayun hose pumps

[@MikeMagno-hb1tz]

Any recommend books we can purchase online?

[@rkclinton1965]

I teach pump and motor maint. This is the best video I have seen, to simply explain the concept.

[@craigspicer4296]

You guys need to get in contact with Tafe in Australia because they need this badly. This is the best tutorial by far.

[@pasabalyemez1]

In order to understand pump curve is correct, you can slowly close outlet valve then check outlet pressure if it is reach to maximum head or not. For your safety do not keep outlet valve closed for a long time

[@sarathy319]

This channel is doing a great Job. Kudos to the team.Looking forward from this team more like this.Especially more from Thermal devices (AC , REFRIGERATOR,) and components like Heat exchangers etc

[@EngineeringMindset]

Thank you, Sarathy. Have you watched our Supermarket Hvac video? I think you'll really enjoy that

[@OlympusHeavyCavalry]

It is interesting how you talk about variable speed pumps. At my previous place of employment, many of the larger submersible pumps had a soft start/stop. There were various reasons for this, where they were used in areas, and on pumps, that typically needed this, including safety. Cheers for the video :-)

[@EngineeringMindset]

VFD Video is now live! here: kzbin.info/www/bejne/r3azlmqIedmendE

[@meg7617]

Excellent Work. Everything was illustrated intuitively with proper focus on the practical aspects.

[@nega3ive.]

man i can't thank you enough. i was searching for these and you came through again.

[@braizo3804]

Man, what a video! Very good! Your explaination is short and perfect!

[@TimurChepiga]

i am on my final year of hydro engineering this is the thing we're studying right now. Couldn't have better timing)

[@EngineeringMindset]

Glad to hear, hope the exams go well!

[@mrcubepad4564]

I am just started how sad it is.But I'm hyped for HVAC!!

[@jonesy3007]

Great video. Please note industrial voltages in Canada are 600vac 3 phase. Keep the content coming!!

[@vijaysrivatsa3216]

It was the best way to explain the graph...thank you so much! Please do more such video. :')

[@SampaioRoan]

One of the best channels available out there

[@Ol.S.-work]

Great Video ! Simple quick explanation to refresh your memory.

[@ابوسفيانالشاعر]

Please keep posting such learning videos

[@csbanki]

This video is amazingly easy to follow and incredibly helpful! Thank you so much! :)

[@MrCooldude987]

the best tutor i found so far :)

[@lapat5739]

Easy to understand. Very helpful for my job. Thank you very much😊👍👍

[@kingofsleightscardmagic1296]

Amazing vid! Waited too long to watch, learned a lot!

[@210359]

Excellent video, well explained, clear and lucid audio and video. Thanks a lot !!

[@tahirmehmood1185]

Really your video and way of explanation very fantastic. Because you start from basic. Thank you soo much.

[@Anas-yp4qp]

Thank you sir, although I know all of what you explained, I still watched the whole video, liked it and suscribed to your channel. Keep it up :)😍

[@Stuart68505]

Thanks this made understanding pump curves seem much easier.

[@leooel2251]

FABTASTIC TECHNICAL PRESENTATION OF THE PUMP RELATED CURVES : 🙏

[@mdmuntasiralam774]

Excellent video. This is very informative. Thanks for your good work.

[@s.thomas3289]

Great video again. Thanks ! Note that in Canada, 600v is common. 480v is in use in the US.

[@EngineeringMindset]

Seen our new 3 phase transformer video?➡️: kzbin.info/www/bejne/q2G2pJigeaiJobc

[@hamidraza9655]

Pumped up after watching this video...very well explained...👍

[@Samara200M]

Do they calculator on every devices , before installing right sir

[@EngineeringMindset]

During the design they will define the system requirements, but it's unlikely to find equipment to fit the exact requirements, so it's over sized and then during commissioning they try to get it operating as close as possible to design

[@ajju460]

Thanks for the video sir. Excellent work. Please keep posting such learning videos

[@EngineeringMindset]

Thanks ajay

[@louielaquio8388]

wow, very interesting and comprehensive. thanks!

[@mg.f.9023]

So simple to understand! Wow! Thanks from a layman.

[@philschroder445]

Well done. Clear concise and well illustrated.

[@simpleben77]

I size and sell centrifugal pumps and this is spot on. you certainly know your stuff. great video.

[@polarkerr]

Great video, I learned more about pumps that I ever cared to know

[@mateenlakhani621]

A video on Basement Ventilation would be much appreciated

[@hefeihuayunmachinerymanufa6773]

Great pump introduction

[@mirageleung]

Can you clarify, the graphic at 4:46 seems wrong or inverted? At max head, there will be minimum flow rate so the height of the water coming out of the pump should be at its max

[@kspatel212]

I highly appreciate you for explaining this. thanks.

[@asemahmed2618]

Massive work with excellent knowledge

[@johnperkins5644]

Super easy to understand ! great job !!

[@mohamoha-jc7qn]

Incredible video !!!! The best channel in KZbin !!!❤❤❤🔥🔥🔥

[@enggprobusiness2743]

Very informative. U guys are doing amazing work. Useful information. Keep sharing!!!

[@TUKANG_PROPERTY]

It's very informative with very clear explanation... thank you so much this amazing video 🤩🤩

[@rohitdmangalekar6795]

Absolutely fantastic explanations... loved them.. thank you very much.

[@Black_Kakari]

@11:28 Australia and New Zealand also operate with the same Voltage and Hertz as European Union, however it's 240V / 415V typically.

[@DaveMody]

NPSH is measure of differential pressure. NPSH is the difference in absolute pressure of the fluid, minus the vapour pressure of the fluid at the operating temperature. The differential pressure is typically stated in terms of the liquid's head (rho G H formula). Also, cavitation is not due to "air" bubbles. It's the fluid in gas phase collapsing that causes the damage. I believe there are examples of using entrained air can reduce cavitation damage. Cheers!

[@pikinskills]

Could you please explain surging, choking and stalling by this curve? Its confusing and there are no videos on youtube about them coz I think its not ez.

[@23youwatch]

This is an exceptional video

[@NickyHutch]

Great video! Clear explanation. Thanks 🌹🌸🦋🌞🎶🌀🐳💙

[@epistte]

This video explained pumps better than my college class, in less than 1/5th of the time. Thanks.

[@marvinluyombya2659]

Amazing info,, concise and makes things easy to understand

[@admiralcraddock464]

Great stuff. Looking at pump curves makes my brain frazle

[@achuth347]

Can you add a video for fan selection and its static pressure calculation.

[@EngineeringMindset]

Great idea

[@EngineeringForFun]

Yes, a similar video to explain fan curves would be awesome!

[@希沃德]

謝謝！

[@EngineeringMindset]

Thank you! 家駒李

[@Easwarankrish]

Hi Paul, very succinctly explained. I have one trivial matter to nitpick - the bubbles that are formed when there isn't enough suction head at the inlet of the pump are "water vapour" as opposed to air, aren't they?

[@alejandroalessandro7820]

Not an engineer, but I believe that at low pressure, the first bubbles to appear in water are from dissolved air

[@MohammedFayasvacochin]

Jesus the saviour is here.... the best video of the curve ever

[@nathanchance5716]

very simple yet very informative. keep up the good work

[@learnmillwright]

Amazing info 👌

[@dineshkumthekar3135]

Nicely Explained.. in a simple and step by step.. Your Animation supporter seems to be a great guy!! Regards from Pune, India

[@EngineeringMindset]

Thank you, do you know we also have a Hindi channel? kzbin.info/door/g4k338hz9U8jnD5SXPO5jQ

[@sandeeprajput8439]

Very well explained 🤟.... looking forward to explanation of Refer and AC Mollier Diagram

[@eslamredalotfy1985]

Thanks TheEngineeringMindset, I really liked it @8:36 so the manufacturer will make a 6.25" casing for a 4.25" impeller pump!!! I suppose this part needs more explanation. I think the efficiency is lower for smaller pumps because although the surface roughness is the same but the relative roughness (which really matters) is higher in smaller pumps Anyway, I appreciate your review on my video "2 Pumps Basics and Misconceptions (En)" and on the channel as a whole Thanks

[@johannarichards1554]

Fantastic video! Thank you so much ! Very helpful, even for those of us already in the industry.

[@lastnameavailableok]

Perfection in your video Paul, heading to paypal now.

[@klintbreuker5655]

Just a heads up in the animation showing the VFD the amplitude is changing when it should be the frequency. Basically the peaks should be getting closer to each other instead of closer to 0.

[@dimitrysanglo9539]

very great presentation, thankyou. that realy helpfull for me.

[@marcoaranas]

Question regarding @2:37 It is mentioned that pressure varies with liquid, but height remains to be a fixed value. Does that mean the pump uses more power as well to account for more pressure? Say a pump pushes both water, and something like mercury (SG =13.6) to 50m head, will the pump not be constrained somehow? It would make sense to me if pressure is fixed, which resulted to different heads i.e. 5 bar would result in 50m of water column and equivalently 3.68m of Hg column. Sorry this is likely a stupid question

[@TheTc970]

The video is wrong, pressure is constant height varies

[@Anas-yp4qp]

@@TheTc970 No he is correct, head is constant and pressure varies for centrifugal pumps.

[@Anas-yp4qp]

There is no stupid question, as far as I know, if the pump desing head is 50 m. it will deliver water to 50 m with equivelant pressure = (164 ft * 1.0 #this is specific gravity#) / 2.31 = 71 psi. for mercury pressure = 966 psi. However, Power requirenment from pumping water to mercury will be changed around 13.6 X power on water. this is without considering any viscosity corrections :)

[@calvintrias8447]

thankyou for amaing explanation! really love this account

[@Raunilraj]

best video on pumps!

[@ferozkhan310]

thanks for sharing the knowledge, IF possible can you share video on mechanical seals especially for LPG services

[@jaygajjar9738]

Very well explained. Plz keep uploading more videos on HVAC system design Thanks a lot

[@EngineeringMindset]

Plenty more lined up

[@goldenratio5117]

Cool info !! ... drilling a well in northern CA this month and that's why I'm here

[@goldenratio5117]

@@MasterCivilEngineering 9 gallons per minute at 200ft I'm happy with that!

[@goldenratio5117]

@@MasterCivilEngineering that's what I just hit I'm Nevada county CA

[@jairocortez5313]

Amazing explanation, thanks so much!

[@paulmazaka7842]

Great stuff guys.

[@nihatarter8750]

Very helpful. Thanks a lot.

[@chrisrudy1969]

Great video! I was wondering if you'd be interested in discussing how Bernoulli's equation works with respect to the Venturi principal. Specifically how you'd apply the equations to take pressure and flow from a pump, into a venturi, and the resulting back pressure created to generate suction.

[@frostproff4311]

Он даже о кавитации не рассказывает. А вы хотите о Бернули.

[@vertex9215]

Hn

[@yuderek9963]

Do you have a video for teaching how to calculate the pump head for the close loop chilled water system? Thanks.

[@saifujiwara3941]

Very clear explanation

[@qhse.kasiviswamviswanath6773]

Great video. 👍👍

[@nigelclark7360]

Very well explained, very good.

[@nikkuthomasabraham3784]

Very informative. Crisp and clear. U guys are doing amazing work. Can you do hvac troubleshooting series videos for split and package units?

[@t.rsuresh9097]

Useful information

[@murugappan_N]

Superb man. Enjoyed a lot. Keep doing more. Thanks a lot!!

[@abhijitdasttl]

Very informative, thanks so much

[@qgm007]

Such a comprehensive as well precise description. Well done. Kindly do a video that explain pump pressure and performance varying with throttling using animation like this. This would help many to choose right pump for energy savings. Thanks in advance.

[@vmkkannan]

clear explanations... very useful

[@chpv4145]

Informative video and very helpful