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Check Valves (Full Lecture) 

Jim Pytel
Подписаться 101 тыс.
Просмотров 24 тыс.
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In this lecture we'll examine the check valve, an essential fluid power component that permits fluid flow in one direction and blocks it in another. First, we'll introduce some general valve terminology and mounting methods. Next, we'll examine the construction and method of operation of basic poppet style check valves, right angle check valves, restriction type check valves, pilot to open check valves, and pilot to close check valves. Finally, we'll discuss some basic check valve applications including: quick disconnects, backflow prevention, manual pumps, bidirectional filter routing, clogged filter bypasses, and valve bypasses. (Full Lecture)
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Copyright information: Use this lecture. Use it at home, at work, or at school. Put it in a playlist, embed it in a website, share it with your coworkers, family, friends, and enemies. I made this lecture and posted it on RU-vid so users everywhere have free access to this information.
This being said, this RU-vid channel is meant to be the sole point of distribution for this lecture. Users are not authorized to download it, change it, or charge for access. Don’t even think of downloading it and uploading to your own channel and pretending it’s your own work. Not cool. Use this lecture and let your friends know this free resource exists.
Use it. Don't steal it. Be cool.
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For more FREE online technical training check out the following playlists available at the bigbadtech channel:
DC Circuit Analysis • DC Circuit Analysis
Single Phase AC Circuit Analysis • Single Phase AC Circui...
3 Phase AC Circuit Analysis • 3 Phase AC Circuit Ana...
Hydraulics • Hydraulics and Electri...
Motor Control • Motor Control
Motors and Generators • Motors and Generators
Motor Drives/Variable Frequency Drives (VFD) • Motor Drives
Programmable Logic Controllers (PLCs) • Programmable Logic Con...

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22 янв 2016

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Комментарии : 26   
@nektariosmouzakiths2798
@nektariosmouzakiths2798 3 года назад
Mr Pytel thanks a lot for your great lectures i admire that you put them free on you tube it is a great help
@Mech.Masters
@Mech.Masters 8 лет назад
Dear Jim, i have started learning hydraulics through your videos as i find it easier and detailed compared to other channels.Thanks a lot for uploading.
@johnc4352
@johnc4352 8 лет назад
Thanks Jim. Great job. Imagine how well life will go if you know what you are doing.
@burakayan3360
@burakayan3360 3 года назад
Dear Sir I can not describe how joyfull i am to find your channel. You are teaching the topics that i want to learn once. I am certain that i am going to watch and participate every single lesson of yours. thank you
@bigbadtech
@bigbadtech 3 года назад
Glad you're making use of this material. Make sure to check out the study guides I've compiled for several of these courses: openoregon.pressbooks.pub/electronics1/ openoregon.pressbooks.pub/electronics2/ openoregon.pressbooks.pub/electronics3/ openoregon.pressbooks.pub/hydraulics/
@burakayan3360
@burakayan3360 3 года назад
@@bigbadtech sir, i appreciate for your reply. i will definitely check out the resources you recommend. i hope i will complete every single video in your channel untill the summer ends. Greetings from Turkey
@LearningInVR
@LearningInVR 3 года назад
Nice to watch onceor twice ...., then Nice to be able to listen ten more times while doing other things.
@aartikhandare800
@aartikhandare800 4 года назад
Best lectures ....
@bardia8225
@bardia8225 3 года назад
I HATE MY PROFESSOR. YOU SAVED MY LIFE!!
@bigbadtech
@bigbadtech 3 года назад
Very nice! Glad you're making use of these resources. Please tell your fellow students about these resources. Also check out the free study guides associated with these lectures at: openoregon.pressbooks.pub/hydraulics/
@4mviews0417
@4mviews0417 2 года назад
thank you!
@kientran4224
@kientran4224 3 года назад
Thank you very much! that's what im looking for.
@clacoursiere67
@clacoursiere67 4 года назад
Hi Jim. Good, clear lectures. Thanks for putting this out there. One thing puzzles me about the pilot operated check valve. Your diagrams seem to indicate that when fully opened, there is no pressure from the output port to lift the poppet. Which seems to mean that only when the pilot pressure goes below the bias can the poppet start to move to close. Quickly enough, the pressure from the output port will contribute to lift the poppet and shut the valve. Am I missing something? I was assuming that the valve shuts when pressure on the output is greater than the pilot pressure. Best wishes, whether you find time to answer or not. /Claude
@MrAlimansoor
@MrAlimansoor 4 года назад
love you man. great learning. can you tell which software you are using to teach.
@bigbadtech
@bigbadtech 4 года назад
Glad you're making use of this material. Graphics drawn in MS OneNote. Lecture recorded and illustrated using Camtasia.
@LearningInVR
@LearningInVR 3 года назад
Oh this should be interesting , check yourselve before you wreck yourself why is ice cube in the thumbnail for this video lol .
@robpreston3705
@robpreston3705 2 года назад
Hi Jim I must say I enjoyed your lecture on check valve. I would like to ask a question . When oil is subject to change in viscosity I am I correct in the understand- the the amount the ball poppet valve is moved of its seating is directly proportional the the chang in viscosity? in other word the thinner the oil the less the ball moves and the thicker the oil the more the ball is displaced therefor maintaining the upstream pressure? Regards Rob
@bigbadtech
@bigbadtech 2 года назад
Interesting question to which I honestly don't have an answer. Someone with a fluid dynamics background might have to step in here. There's arguments both for and against. Example a thicker fluid (ie: higher viscosity) might push the poppet off easier however a thinner fluid might flow around the poppet easier. I'm certain one could find some manufacturer that offers a flow rate/pressure drop as a function of viscosity chart.
@o3024
@o3024 5 лет назад
Jim, will there be a reduction of speed flow in the flow control valve with check valve bypass system due to the flow passing through the small hole? Wasn't better a check valve blocking the flow in the flow control valve line and diverting flow to bypass line?
@bigbadtech
@bigbadtech 5 лет назад
Yes, check out the flow control valves lecture at: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Tn3bsiQx1Ug.html
@Mech.Masters
@Mech.Masters 8 лет назад
Can you explain the benefit of by passing a flow control valve with Check valve ? I am finding it little difficulty in getting the exact explanation. If you can explain it in a more simple way, it will help me a lot.
@bigbadtech
@bigbadtech 8 лет назад
+Mech E Check out the flow control valves lecture: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Tn3bsiQx1Ug.html and the flow control methods lecture: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-VFtRNAu3_wg.html
@o3024
@o3024 5 лет назад
Jim, does a hydraulic system when in totally static have empty pipes or hose? Or all the system is fully with oil?
@bigbadtech
@bigbadtech 5 лет назад
Ideally full, a mix of air and oil would exhibit undesirable compressibility
@HanyHosny
@HanyHosny 2 месяца назад
These lectures gotta be AI-generated or something! i swear
@bigbadtech
@bigbadtech 2 месяца назад
main( ) { printf("I am not AI."); }
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