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This is a simple project, but I want to have some data to back up my logic. I have not done a calculation like this is years, so I want to make sure I'm correct. I am having to use 2" Schedule 40 piping for a pipe gate and I want to make sure that there wont be too much deflection. Using one...

Thanks for the responses. Sorry to post in the wrong forum. Yesterday was rough and when I saw "pipe" and ran with it. I don't know what I was thinking. Haha.

This is a simple project, but I want to have some data to back up my logic. I have not done a calculation like this is years, so I want to make sure I'm correct. I am having to use 2" Schedule 40 piping for a pipe gate and I want to make sure that there wont be too much deflection. Using...

Does anyone happen to have recommended direction for a fluid?

Thanks all! I'm not sure about that 50/50 mixture, but my initial thought is that it would freeze. I'll look into it. As of now gas seals sound like a must!

Hello All, Does anyone have any success with running a certain type of buffer fluid on a Plan 52 (unpressurized tandem seal) @ -215 F? We are running liquid and liquid lower as of now. Yes I know we should be running a gas seal somewhere....we're working on that. The process fluid is Methane...

Thanks Ted. I'll look into that as well.

Yes, the elastomer will not be of much use. The link I posted also contains a reference to their "astra" seal, which is indeed a SS ring loaded design. That is the one I will do a bit of research on. Temp range is -420 to 500 F! Thanks for the help!

^^ Thanks for the response. Directly after I posted I found this site. http://www.creavey.com/materials.html I'll look into what you mentioned!

Hello everyone! This is my first post on this forum and I am looking for a bit of help. I'm working on improving a mechanical seal design for a cryogenic service (methane) pump. The process temp is -200F (Yes i said -200F). For some reason I have not been able to find any sources that...