Positive Displacement Pump Types

I know this video is a year old, but thank you for showing us the real life pumps, along with the 2D animations. Seeing both at the same time was very helpful, yet no one ever does that.

Unless all of these were in your back pocket, This was an expensive video. Nice job on the explanations.

This is exactly the kind of video I was looking for. In depth enough to have a gradual understanding but short and sweet enough that it’s not boring. Along with having 2D and real life models to match. Easily the best explanation video I’ve seen.

2:50 These can also have variable displacement by tilting the thrust plate. Those little holes are for some of the pumped medium (usually oil or fuel) to act as a hydrodynamic bearing for the pistons. A typical use case is a hydraulic pump or aircon compressor.

As someone that has been building/rebuilding industrial process pumps for over 10 years I can say that these videos are better than anything any actual pump manufacturers have. It's nice to see fluid transfer get some love, you see fluid power more often. Not that hydraulics aren't important. An interesting outlier on the PD pumps would be a SINE pump. You don't see them very often but they have their place. In dealing with all these pumps, speed reducers, belt drives, couplings, VFD's, and everything industrial; one of the most interesting things I've come across is the Cycloidal drive reducer. I'm sure you have more suggestions than you can shake a stick at, but this would be my suggestion.

Thank you so much for your video. I learned a lot by watching the video and am impressed by how professional and polished your presentations are. Thumps up!

Good video, excellent presentation. Still, I have a few suggestions if you ever re-do this one. 1) Mention at the start what "positive displacement" means and how that contrasts with other types (i.e. why you would want to choose a positive displacement pump) 2) On the plunger pump, you mention that the "physical mass" of the plunger creates the change in volume of the chamber. It can't be mass, it must be the physical VOLUME of the plunger..... 3) For the peristaltic pump, I think it would be good to place greater stress on the point of the pumped fluid never touching the working parts of the pump, and thus the pump cannot be contaminated by the fluid, corrosive liquids can be pumped, the pump mechanism cannot contaminate the fluid (thus good for certain food and medical applications), etc.

Fantastic video mate. When I worked in hydraulics most of these type of pumps were used. Some of them were very hard to deal with when it came to maintenance. All of them worked very well and preformed beautifully. Thank you for your time in the production of these well made mini doc's.

Excellent video - Your explanations and models made it immediately intuitive how each pump type worked. I'd love to see a follow-up talking about some of the pros/cons of each pump type, and some examples of where they're used.

Awesome videos Adam! In 4th year millwright and you cleared up a lot of mysteries for me! Thank you! Keep them coming !

Watching it in 2022 and it's awesome!!! Really helpful the way you choose to explain pumps is amazing! It gives us real knowledge while watching actual pump motions animation and your explaination at the Same time! Very thankful to you! ❤️

Absolutely love your videos! Please make more, you've not had any new ones up in a while, I hope your channel is still going! Great work!

You're killing it bro. Keep it up.

Great videos Adam. You're exactly what I needed now while I struggle to pass my Refrigeration engineer written exam lol. The video and information is actually priceless

Thank you for taking the time to make such an educational video, with physical and animated examples. Highly appreciated

Wondeful. Straight to the point, simple explanations with easy to understand models. No shitty music. Absolutely wonderful, thank you very much.

Awsome!!! thanks for short and awsome intro to the positive displacement pumps

Thank you so much for this explanation! I am studying pumps for work and being able to see the movement is much more helpful than looking at illustrations. Your verbal descriptions were also much simpler and more concise than my textbook. ❤

This video is beyond amazing, this is the first time I'm coming across your channel and I just can't resist subscribing. Just beautiful, thank you ❤️🙌🏾

Technology has changed so rapidly it's refreshing to see passionate, concise, explanations.