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using check valves as pressure differential
ambercontractors
Member Posts: 17
Hey everyone!
I had an interesting question, i want to use a reverse indirect DHW with 2 pipe config. as my buffer tank and my hydraulic separation. From what i've seen the way to encourage the SH to take water from the buffer tank first is to install a pressure differential valve with a pressure drop of 2 psi. The only valves that i was able to find online were max 1-1/4" acc. to my load calc i would like to keep the piping sized to 1-1/2"
I had an interesting question, i want to use a reverse indirect DHW with 2 pipe config. as my buffer tank and my hydraulic separation. From what i've seen the way to encourage the SH to take water from the buffer tank first is to install a pressure differential valve with a pressure drop of 2 psi. The only valves that i was able to find online were max 1-1/4" acc. to my load calc i would like to keep the piping sized to 1-1/2"
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Comments
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A simple ball valve will work...
There was an error rendering this rich post.
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... better. Because you can adjust it to suit.Big Ed_4 said:A simple ball valve will work...
Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England0 -
The intention of that valve is to prevent the system pump from pushing through the boiler A typical hydronic spring check with a 1/2 psi pop is adequate
The check in the circulator will work as alsoBob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0
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