Teaching: Relief Valve Basics

[HaIPeHaOP]

I can’t believe I just stumbled upon this video randomly and ended up spending an hour on late Monday night learning and taking notes about pressure relief valves… amazing lesson! Thank you sir! 😄 By the way the pressure drop at the balance orifice is described by the Poiseuille’s Law (I believe), I’m just leaving it here as knowing that really enabled me to understand how these valves work.

[SH-blwh]

Great teaching skills. Thanks for sharing. Looking forward to find out more about lunchboxsessions

[Joetime]

Ivan and I have similar hair styles lol

I did love this, seeing interactions between Carl and curious people such as I.

[bryanlockleer]

You're a very good teacher. I'm moving into a new roll at a very large aerospace company where I will be calibrating hydraulic systems. I am being trained on site by an individual with over 35+ years of experience in this field and I am using your video to help me "brush up" before I start in 2 weeks. I have 15 years in aerospace working on building complex tools for precision drilling on the structure. Now I am moving into metrology / calibration. Thank you for your amazing ability to teach and your expansive knowledge!

[samirmondal]

Really Enjoyed the Lesson. Education has no End.

[alikordi]

Thanks sir, was one my best classes that I've ever been at.

[_Ptat_]

Instructor is awesome. Not demeaning to the students at all, but instead explains everything to help them understand. So to me, I knew that series of dots was the spring in the relief valve. But for the student who asked, the instructor not only confirmed that it was the spring. But also explained that it’s the industry symbol for a spring cutaway.
I respect the hell out of that.

[pankajsaini]

Thanks sir for uploading such a great video on the explanation of relief valve.🙏

[jianliangge]

Static and dynamic pressure, flow, uncompressed and orifice. After this lesson, I understand how balanced main poppet works. Load increase, static pressure increase, pilot poppet crack, flow created,
Pressure difference between orifice inlet and outlet, main poppet starting open.
This lunchbox session is great. Thank you.

[samirpashayev]

it's awesome that you guys posted this for everyone! helped me out a lot! appreciated!

[alihadi]

I can't believe that I found this content online, this is absolutely gold😮

[Ranga-RB]

Good lesson, Im student of Diploma in Hydraulic & Pneumatic in Sri Lanka 🇱🇰

[machineryoverhaulretrofitm]

thank you very much
Great explanation

[SH-blwh]

Question. @40.11 pressure below 950psi keeps the poppet closed because of pressure balanced through the orifice. Then that means it should balance after 950psi. But it doesn't why?

[parthiparthiban]

Thanks sir for uploading relief valve

[hemanthchavan]

your sessions are very informative and properly broken down. Gained a lot from you sir and really appreciate the way you deliver the knowledge and makes us ease to understand. Lot more misconceptions have been cleared, in my learning.

[random-kcgx]

Really enjoyed the lesson and learnt something useful! Would love to see videos on NG 6 or NG 10 stack/sandwich valve configurations for PT dcv for a single ram or multi ram configurations. Thanks and please keep em coming!

[anagha]

Concept of differential pressure is applicable for main poppet

[mmnyako]

I learn a lot from this lecture. Thanks for sharing!

[sunnmyong]

we did replace control block )whole set) ...than found main drum pay out not functioning but pay in / swing and boom functioning were still functioning...please advise thanks...