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3-way valve: mixing or diverting?

2010-11-02

When coosing a 3-way valve, how can we decide between mixing or diverting valves? What are the reasons to choose each one. Wich applications are they mos suitable for?With about 13 years experience in HVAC and process cooling applications, I have yet to find out a logic for either to use mixing or diverting valves. Both can be used for either flow control or temperature control application with out any problem and there is not extra benefit if you choose either one. However, the selction is cirtical with respect to the location of control valve and that is all.If this is for a heat exchanger application (as I understand from your other thread) then 3 way valve is a kind of dead duck. I replaced many three way valves (or blinded one port) with two way valves. Don't let your pump gulp more energy when it is not required. 

 

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