I need a two way valve

S Ebels

I'm looking for a two way diverting valve or a zone valve of some kind. It's for a pool heating job which has an existing gas fired pool heater already installed. The HO wants to connect his outdoor wood burner through a heat exchanger to heat the pool a little more economically. The piping for the wood boiler (also existing) is such that I have a constant circ loop to connect to for heating the pool. It would be nice to simply turn the pump on/off as needed but other parts of this bastardized install eliminate that possibility. So I'm looking for a valve that will let the boiler water bypass the HX until there's a call for heat from the pool. When that happens I'm imagining a relay of some type moving the valve to position #2, which would divert the water through the HX. Anyone know of a nice 1" or 1 1/4" valve and relay combo that would fill the bill for this?

Mike T., Swampeast MO

Two-way or Three-way???

Sounds to me as if you're talking about a 3-way valve in full diverting configuration where one "input" can go to one of two "outputs".

If so, Danfoss type ESBE (or similar) should work fine. As long as you can use 1¼ - 1½" MAX, cost of valve and operator isn't too bad. 1½" or larger are substantially more expensive.

Lots of makers of similar valves, Honeywell, Burnham, Heat-Timer, etc., etc. These offer high flow, low restriction and mixing ability but this seems to come at the expense of non-100% positive shut-off to the ports. If a small amount of "leakage" is a problem, you'd probably have to go with another design like a three-way solenoid.

hr

Why not

a 3 way zone valve? Also be sure to have some sort of return water protection for the wood boiler. I suspect that pool could keep it running too cold, if flows are such.

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S Ebels

OK

In my feeble mind a two-way valve is one that water enters one one side then, depending on valve position, exits one of two remaining ports. I guess that's a 3-way? But only two possible flows? Oh well........ Yes, that is the type I'm talking about. Maybe the distributors around here were confused by my request for a two way valve.

Anyone have a model number for a 1" "3-way" motorized valve? I can work with a 24V or 110V actuator.

Mike T., Swampeast MO

2-way, 3-way valves

It's just like electrical switches.

A two-way switch (the "normal") connects one power with one load.

A three-way switch connects one and/or two powers with one and/or two loads--we normally only see two powers connected to one load, but it can work either way...

hr

any brand preference?

I like Eries

A 24 volt, 1" sweat, with end switch, 7.4 cv would be a 751 series 0751C0045GA01. Johnstone Supply gets them for me quickly from central distribution.

Check other manufactures websites, Honeywell, taco, etc all to build the valve you need.

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