plumbing my 2 500 gallon propane tanks in parallel and want to use 4 stainless flex connectors (one on each port) to make the plumbing easier and allow for some movement. I have found a few industrial sources in the 8-10" range, 1" inner diameter, with male threaded ends. Best price I have found is around $50 each. Anyone have a good source? I noticed that hot water heater flex connectors come in 1" size and seem to be suitably rated for temp and pressure- anything wrong with using those? Thanks....
flex connector rec
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1" clean pipe for hydronic applications is spec'd at 8 gpm. This flow rate at 20F
is good to move 80,000 btus. What's the diameter of your supply and return lines to your boiler? 1" flex may be a choke point in your system.
is good to move 80,000 btus. What's the diameter of your supply and return lines to your boiler? 1" flex may be a choke point in your system.
Bad LP
Minister of Fire
Why do you expect movement? Iron pipe nipples and unions are short money and help tie everything into a solid mass.
1" clean pipe for hydronic applications is spec'd at 8 gpm. This flow rate at 20F
The tanks will be plumbed in parallel in a 2 pipe system similar to the above with larger headers which will have 1" supply/return from the boiler (100 delta T will move 250,000 btu/hr from the boiler at 5gpm, well within the capacity of 1" pex) and 2 1" lines from the tank header to my infloor supply manifolds. I can move 16gpm at a 20 delta T giving me a max 160,000 btu/hr to my infloor. My design point heating load is about 120,000 btu/hr so I should be fine.
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There will be expansion and contraction. I have seen flex connectors recommend by several industry professionals. Anything that makes plumbing easier can't be all bad!
maple1
Minister of Fire
I looked around for some a bit when I did mine, also looking for an easier install. Couldn't find any suitable, so I just did the BI & copper thing.
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