balance/control valves

james g grady

i have new steam boilerinstalled .one raditor on first floorkept blowing steam through valve.what is best way balance steam system. thank for your imput.

joe_15

blance/control valves

does it matter where you put these i have seen them desinged both on the supply and return. Also seen the blance on the return and control valve on the supply. is there a reason or just the engineers prefence ?????

Tom Anderson

It does not matter. The pressure drop across a hydronic balance valve or a control valve is the same, regardless of whether it is installed upstream or downstream of the terminal device.

Traditionally, most designs show balance and or control valve at the outlet side of terminal equipment. From what I have gleaned after 20 years of wondering why this is traditionally done, it is because the control/balance valve sees cooler fluid temperatures in a heating application... which allows the device to withstand higher system static pressures (important in a few special applications). In a chilled water application, the valves experience warmer fluid temperatures, thus less "sweating".

Mark J Strawcutter

balance on return

my understanding is that having balancing valves on the return keeps the pressure up in the circuit and this in turn helps keep air in solution.

Mark

mike glass

balance valves on return

You are correct!

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james g grady

> i have new steam boilerinstalled .one raditor on

> first floorkept blowing steam through valve.what

> is best way balance steam system. thank for your

> imput.

Bryan_5

James,
In order to get the most help post your question in a new thread.
Bryan

james g grady

flange

install new traps