Need flange blank source.

[kgryder]

I have my Econoburn almost in place and had already decided that I would not have any water storage this year. But two weeks ago I came across two perfect tanks (almost) at a good price. I got 2 SS tanks with 1/4" thick wall that are about 28" in diameter so they will fit through my basement door. The tanks do not look like they were ever used, just laided outside for a long time. These with my SS DHW tank will give me almost 400 gals of storage. Not huge but it should even things out a bit.

The only problem I have is that there are 2 6" diameter pipe flange ports that I need to blank off and 4 2" ports that I will need to get flanges for a NPT connection.
After checking around I may end up spending as much on the flange fittings as I spent on the tanks! Any one know of a good source for some used flanges? Freight will most likely run as much as the parts on these so I don't have a lot of hope of find anything but it's worth asking.
thanks

 

[Eric Johnson]

Are those pressurized tanks or non pressurized? If the latter, then you'll need a heat exchanger.

If those are agricultural ss tanks, then I'd check with a farm supply outlet to try to track something down. Maybe you can have some made by a local machine shop for relatively little money. I doubt they need to be ss.

 

[muncybob]

Another member used this place for his flanges on his propane tanks:

http://www.hydro-eng.com/flanges_gaskets.htm

 

[kgryder]

This will be a pressurized system. If not I could make some blind flanges out of sheet metal and back it up with a piece of wood or something.
On McMaster-Carr a Steel 6" blind flange is $63, plus freight. I was hoping for something cheaper.

 

[Nofossil]

I found a local outfit that welded up several mods to my tank - all SS, very cheap. They closed off a port and welded in some stainless nipples through the tank wall.

 

[kgryder]

I may have to consider just having them welded closed. Maybe just welding a plate to the flare so we don't have to weld to the tank body.

 

[Couderay80]

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