Piping Engineering : Dual plate check valve - internals 

We humbly request you to post the video continuously. Thanks

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Thank you very much

All the videos you post are great. I have never seen such a video with practical explanations before. Your videos are immortal and over time this video will be useful to many people on RU-vid.

Thanks a lot Very good and complete explanation about this check valve.

Good morning sir. Please explain the flange Jack screw or jack bolt. Thanks

Dear Sir. Since there is no holes im the flanged ends of the valve so I beleive before installation it has to be drilled as per the standard.

Hi i am reparing all types of industrial valve

Sir you said stopper rod is provide to restrict complete opening/travel of the flaps. Why do we want to avoid complete opening?