sediment filter for strage tank

[tmudd]

Hello boiler buddies,
Sometime back, Nofossil had a post on filtering his storage tank water. I was wondering what brand/or type of filter to use. Will a plastic filter body cartridge holder stand up to 180 degree water? What micron size is appropriate? I am trying to filter out rust sediment that has come off the inside of my propane storage tanks. tanks. My thought was put it on the return side of storage tank and valve it on both sides of the filter body so that I could change the filter without draining and purging the system. An air vent or purge button on top of the filter body would be ideal. I have a "Servapure whole house filterfor my water system, but did not know if that would be suitable for the high temps involved. Any recommendations would be helpful.
tmudd

 

[velvetfoot]

This is what I got for my system.
http://www.supplyhouse.com/Caleffi-546307A-1-1-4-NPT-5463-Series-DIRTMAG-Dirt-Separator-with-Magnet

 

[jebatty]

This one is rated to 200F: http://www.amazon.com/Water-Filter-Temperature-Housing-PWFHHW2510/dp/B004C3XG6G

I have one in a metal case and located on the return line. The metal cased filters are much more expensive.
http://www.filters4h2o.com/High Temperature Water Fillter Systems.html

The return from my storage tank is about 6" above the bottom of the tank, so I would guess heavy stuff just falls to the bottom of the tank. Initially the filter trapped lots of junk. The last time I changed it was after 2 years in use, and the filter was only discolored, practically nothing visible in the fibers of the filter element.

 

[wtrass]

Spirovent makes one that I bought- still putting the system together and it was pricey. I have had great luck with their spirovents in the past.

 

[tmudd]

This one is rated to 200F: http://www.amazon.com/Water-Filter-Temperature-Housing-PWFHHW2510/dp/B004C3XG6G

I have one in a metal case and located on the return line. The metal cased filters are much more expensive.
http://www.filters4h2o.com/High Temperature Water Fillter Systems.html

The return from my storage tank is about 6" above the bottom of the tank, so I would guess heavy stuff just falls to the bottom of the tank. Initially the filter trapped lots of junk. The last time I changed it was after 2 years in use, and the filter was only discolored, practically nothing visible in the fibers of the filter element.

Thanks Jebatty and Velvetfoot for the response, At the moment my Froeling goes right to 1000 gallons of pressurized storage with 1 1/2 inch supply an return, out the bottom then 1 1/4" off of the supply from the boiler to the house. The biggest outlet that I can get on a the filters recommended is 1". It seems that it would slow down the rate that I may be able to charge my tanks. The website claimed that at 15 gallons a minute flow, there would be about a 1 lb differential pressure loss. I am not surehow to interpret this. What do you guys think.?

Thanks again, this is a great group of folks.
tmudd

 

[eauzonedan]

Mike at Precision Chemical recommended a side stream approach to me where you split the flow and only route a portion of it thru the filter. Garn recommends a separate circ and a dedicated flow loop for the filtering. A Taco 1500 is under a hundred bucks and would only cost about $25 a year to run. The back pressure from the filter will be a function of how dirty it gets and it could impact your system flows when dirty. I understand you have pressurized storage but the concepts still have merit
Dan