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Hi again, I have one more question. I did the calculations for Cv. Input conditions are Volumetric Flow Rate 6Nl/min at Gage Pressure 500hPa (I had wrong input pressure earlier) at room temperature(I am taking 20ºC). The permissible ΔP is between 50-100 hPa. Cv(US) comes out to be 0.06 for...

Once I am done with it I will surely post my approach. But, it will take few months. As, it is my thesis topic and I have to thoroughly go through it. I have to defend with actual facts and data.

Thanks for good luck as I need it. Normally things should be like you mentioned. But, the way I have shown in the picture, inlet and outlet areas in existing system are smaller and in between there is rectangular chamber with more space. Due to required small size of valve or space restriction...

Hi again and Thanks for the reply! Please see the attached images (simple concept representation) first so that you can understand the terms I am going to use in explanation. From what you are saying, I understand that inlet diameter (inlet pipe area before large rectangular chamber area) is...

Hi gerhardl, First of all thanks for the reply. I will try to clarify your doubts as far as I can. Due to confidentiality, that I have signed, I could not give you perfect details. But, I can let you know the mechanism. There is motor to provide compressed air and it is of very small size. I...

I have already posted my query in Valve Engineering Forum. But, no one is replying there. So, I am putting the link of the same here. Please answer my doubt if you know the answer. http://www.eng-tips.com/viewthread.cfm?qid=400049 Thanks in advance! Regards, Rajdeep Rajput

Please guys reply if you know anything. Regards, Rajdeep Rajput

I do not have any idea whether I am right person to answer your question. But. I found one PDF of British Standards for Testing flow resistance. It includes all test specifications. It might be helpful to you. http://www.ganino.com/games/British%20standard/BS%20EN/BS%20EN%2001267-1999.pdf Best...

Hello all, This is my first post here. I do not know whether my question is repetition. But, I have searched all posts first and then I am posting a question, as I could not find satisfactory answer to my doubt. I have to design pneumatic check valve. From what I read or researched, I could...