3 way diverting valves versus 3 way mixing valves
3 way diverting valves versus 3 way mixing valves
(OP)
3 way mixing valves are common. 3 way diverting valves are not. In the past I had encountered an owner you vowed to stay away from diverting valves but it appeared that the real issue was that the diverting valve was applied in a mixing valve application
Has anyone consistently relied on diverting valves for an HVAC application?
Has anyone consistently relied on diverting valves for an HVAC application?





RE: 3 way diverting valves versus 3 way mixing valves
RE: 3 way diverting valves versus 3 way mixing valves
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: 3 way diverting valves versus 3 way mixing valves
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: 3 way diverting valves versus 3 way mixing valves
Put a 3 way controlling valve in supply line and it gets the name diverting valve and put it in return line and it becomes a mixing valve.
The main issue is to keep the coil full.
RE: 3 way diverting valves versus 3 way mixing valves
RE: 3 way diverting valves versus 3 way mixing valves
In my experience, by far the most common HVAC coil application for 3-ways is the (diverting) coil temperature control valve. In this application the bottom port is the line to return (bypass flow) and the through-flow (opposite from inlet) is flow to the coil. This is especially common at the end of a heating water run (furthest end from source), even on VFD controlled systems, because it provides a minimum flow to keep the lines warm (by bypassing only when there is no coil demand).
So I would answer the original question by saying that diverting valves are very common, if not the rule, in HVAC applications.
RE: 3 way diverting valves versus 3 way mixing valves
How you pipe them makes a difference
Take the "V" out of HVAC and you are left with a HAC(k) job.