Pump Chart Basics Explained - Pump curve HVACR
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- čas přidán 20. 06. 2024
- Pump curve basics. In this video we take a look at pump charts to understand the basics of how to read a pump chart. We look at basic pump curve, head pressure, flow rate, pump performance, impeller size, efficiency, npsh, multi-speed pumps, VFD's, rotational speed, voltage, frequency and phases to help you learn hvac, hvacr and mechanical engineering.
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⚠️ *Found this video super useful?* Buy Paul a coffee to say thanks: ☕
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How changing size of impeller work,when the casing size is fixed? Can someone explain
I will buy Paul a warm lunch and heavy dinner if he will teach me how to prepare presentation like that
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!
I really appreciate all the knowledge you spread around with these. Extremely helpful, thanks!
Your presentation on pumps is very easy to understand and very helpful to apply to the practical cases.
Thank you very much.
This helped me so much to understand stuff at my new job. Out of school it helps with a practical side
Thanks Paul. I did this course in my Electrical Engineering program and I am just understanding Pump Curve..great job.
It was the best way to explain the graph...thank you so much!
Please do more such video. :')
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
Thank you, Sarathy. Have you watched our Supermarket Hvac video? I think you'll really enjoy that
This video, presentation material and style ticks so many boxes for me. Cheers.
Excellent video. I'm student of Mechanical Engineering. This video helped me better understand the basics of pumps
Suppose we have give.
HeAd
How to calculate pressure
Really great! This short video covers almost all the pump curve concepts I needed for my exams. Thank you so much.
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 :-)
VFD Video is now live! here: czcams.com/video/yEPe7RDtkgo/video.html
man i can't thank you enough. i was searching for these and you came through again.
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.
Glad to hear, thank you
@@EngineeringMindset Sir could u please explain surging stalling and choking using this curve? Its hard and there are no videos about it.
Great video. Please note industrial voltages in Canada are 600vac 3 phase. Keep the content coming!!
As a complete novice to the subject matter this was the absolute perfect video. AND I CAN FOLLOW THE EXPLANATION!!!
Man, what a video! Very good! Your explaination is short and perfect!
Excellent video, well explained, clear and lucid audio and video. Thanks a lot !!
Excellent Work. Everything was illustrated intuitively with proper focus on the practical aspects.
Absolutely fantastic explanations... loved them.. thank you very much.
very simple yet very informative. keep up the good work
Fantastic video! Thank you so much ! Very helpful, even for those of us already in the industry.
A video on Basement Ventilation would be much appreciated
Paul, great selection of videos please keepm them coming. Could you make a video explaining how a gas absorption heat pump works for domestic heating? And is there a difference between a GAHP and a gas fired heat pump? Thanks.
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 !!!
wow, very interesting and comprehensive. thanks!
Thanks this made understanding pump curves seem much easier.
Well done. Clear concise and well illustrated.
Great Video ! Simple quick explanation to refresh your memory.
Amazing info,, concise and makes things easy to understand
Easy to understand. Very helpful for my job.
Thank you very much😊👍👍
Excellent lecture. Thank you very much !!
Love all your videos. Keep up the superb work
Super easy to understand ! great job !!
I size and sell centrifugal pumps and this is spot on. you certainly know your stuff. great video.
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.
FABTASTIC TECHNICAL PRESENTATION OF THE PUMP RELATED CURVES : 🙏
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
Great stuff. Looking at pump curves makes my brain frazle
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.
Very well put!
Hey man you seem an expert on pumps..
Can you provide more informations? Especially on specs we are missing here
Sir, hats of to your experience, need some guidance and information about pumping system for industry,
Great insights, sincerely invite you to learn about our Huayun hose pumps
Amazing explanation, thanks so much!
Superb man. Enjoyed a lot. Keep doing more. Thanks a lot!!
Informative! Thanks for sharing!
thanks for sharing the knowledge, IF possible can you share video on mechanical seals especially for LPG services
Thanks for the video sir. Excellent work. Please keep posting such learning videos
Thanks ajay
Incredible video !!!! The best channel in CZcams !!!❤❤❤🔥🔥🔥
I highly appreciate you for explaining this. thanks.
Mind blowing!!! I get it now thank you so much. Can you do a video on Solid State Relays charts? Heat dissipation , size of heat sink required, resistive vs inductive load and all that good stuff.
Great video 👍🏼👍🏼👍🏼
I teach pump and motor maint. This is the best video I have seen, to simply explain the concept.
Very informative. Crisp and clear. U guys are doing amazing work.
Can you do hvac troubleshooting series videos for split and package units?
Useful information
It's very informative with very clear explanation... thank you so much this amazing video 🤩🤩
Great video, I learned more about pumps that I ever cared to know
Excellent video. This is very informative. Thanks for your good work.
Very well explained.
Plz keep uploading more videos on HVAC system design
Thanks a lot
Plenty more lined up
Very informative. U guys are doing amazing work. Useful information. Keep sharing!!!
This video explained pumps better than my college class, in less than 1/5th of the time. Thanks.
Awesome ☺️
Best explanation.
Glad you enjoyed
Very well explained 🤟.... looking forward to explanation of Refer and AC Mollier Diagram
Pumped up after watching this video...very well explained...👍
Perfect video ever.
Thanks alot
1:10 is mind blowing. As a fire sprinkler contractor i learned a new concept about understanding the concepts behind pump curve.
😂
Keep up the videos. Great stuff!
Really great demonstrating video ❤️❤️❤️
Great pump introduction
Very Insightful !!!
Amazing vid! Waited too long to watch, learned a lot!
Massive work with excellent knowledge
Very helpful. Thanks a lot.
great video , thanks!
You guys need to get in contact with Tafe in Australia because they need this badly. This is the best tutorial by far.
the best tutor i found so far :)
One of the best channels available out there
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 :)😍
Very informative, thanks so much
Very well explained, very good.
Amazing Video!
clear explanations... very useful
Great vid - and great graphics.
Fantastic video! As a future topic recommendation, maybe you could do a video on DBU's (Desiccant-Based Dehumidification Units
)?
So simple to understand! Wow! Thanks from a layman.
thankyou for amaing explanation! really love this account
Informative video and very helpful
Great stuff guys.
Hey! Engineering Mindset, I really love your informative videos they're really helpful.But I was wondering if you could cover how mini split inverter AC's work signal wise that would be much appreciated,even if I would have to pay you to make that video is not a problem.I'm a beginner to the field by the way.
Already covered it in this video: czcams.com/video/ln9VZIL8rVs/video.html
Thanks for this lesson.
You're welcome
Perfection in your video Paul, heading to paypal now.
Great video thanks 😊
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
very great presentation, thankyou. that realy helpfull for me.
Useful video and thanks for your share
this video was awesome...just subscribed...by the way have you done a video on fans (covering topics such as blade pitch angle, airflow rate, etc)
Nicely explained.👍👍
Really really helpful video
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
See our new video on how to build mechanical versions of electronic circuits? Watch here: czcams.com/video/Zv9Q7ih48Uc/video.html
Great video.
Amazing info 👌
Great video! Clear explanation. Thanks 🌹🌸🦋🌞🎶🌀🐳💙
very good tutorial ,thnaks
Amazing video
Very clear explanation